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CHEMICAL PROFILE CAS 544-63-8

Myristic Acid

Properties, Uses, pKa, Safety,
Comparisons & Suppliers

Myristic acid is the saturated C14 free fatty acid. Isopropyl myristate and myristate salts are distinct products, so derivative performance must remain clearly labeled. [1]

At a glance

Quick reference
Molecular formula
C₁₄H₂₈O₂ [1]
CAS number
544-63-8 [4]
Molecular weight
228.37 g/mol [1]
IUPAC name
tetradecanoic acid [1]
Chemical family
C14 saturated straight-chain fatty acid [1]
Carbon atoms
14 [1]
Carboxyl groups
1 [1]
pKa reference
Not verified in this review [2]

Identity focus: Neutral free acid; water and derivatives specified separately. Aqueous pKa values depend on conditions; product assay is a separate measurement.

01

THE ESSENTIALS

Myristic Acid in 30 Seconds

Twelve CH₂ groups connect CH₃ to COOH. There is one acid group, no alkene and no stereocenter in the neutral molecule.

Myristic acid is the saturated C14 free fatty acid. Isopropyl myristate and myristate salts are distinct products, so derivative performance must remain clearly labeled. [1] [3]

Safety at a glance — TCI M0476 identifies skin and eye irritation. Sigma lists combustible-solid storage and exact-product cold storage while shipping at ambient temperature; shipping and long-term storage are separate instructions. Avoid powder/contact exposure and handle warmed acid with the applicable product controls. [4] [5] [6]

Myristic Acid condensed structure: CH₃–(CH₂)₁₂–COOHCH₃–(CH₂)₁₂–COOH1 carboxyl group

A condensed structural formula keeps the functional groups visible. [1]

01

Biofilm laboratory research

TCI documents myristic-acid investigation of Candida albicans biofilm and hyphal formation, expressly for research. [4]

02

Ester-synthesis intermediate

Attributed industrial references identify ester synthesis for flavor/perfume contexts. [3] [14]

03

Commercial availability

The supplier section separates package size, assay, grade, and market context for three named products. [4] [5] [6]

02

GO A LITTLE DEEPER

Understanding Myristic Acid

THE SIMPLE EXPLANATION

The functional groups

Twelve CH₂ groups connect CH₃ to COOH. There is one acid group, no alkene and no stereocenter in the neutral molecule. [1]

A LITTLE DEEPER

What the structure changes

Esterification can form isopropyl myristate, changing chemical identity and practical behavior. Protein-bound myristoyl groups are likewise not free-acid ingredients. A neutralization assay measures acid equivalents rather than proving the C14 composition by itself. [1] [12] [14]

Technical detail Identity, dissociation & specification

Connectivity and neutral formula identify this acid. Positional isomers, water-containing products, salts and esters require their own specifications. Measured reference conditions, assay methods and unresolved discrepancies remain visible. [1] [2] [4] [5] [6]

Acid–base reference values describe equilibria under specified conditions. They are not a substitute for a validated formulation or an assay on the purchased lot.

03

MAKE THE CONNECTION

How Myristic Acid Compares

Similar names and functional groups do not mean interchangeable chemicals.

SIDE-BY-SIDE COMPARISON

Myristic Acid vs Lauric Acid

C14 saturated straight-chain fatty acid
versus
C12 saturated straight-chain fatty acid

Fixed comparison for this prototype. Acid selectors are disabled; additional comparisons are coming later.

Myristic Acid compared with Lauric Acid
PropertyMyristic AcidLauric Acid
Molecular formulaC₁₄H₂₈O₂ [1]C₁₂H₂₄O₂ [7]
Molecular weight228.37 g/mol [1]200.32 g/mol [7]
Carbon atoms14 [1]12 [7]
Carboxyl groups1 [1]1 [7]
StructureCH₃–(CH₂)₁₂–COOH [1]CH₃–(CH₂)₁₀–COOH [7]
Chemical familyC14 saturated straight-chain fatty acid [1]C12 saturated straight-chain fatty acid [7]
Identity focusNeutral free acid; water and derivatives specified separately [1]Neutral free acid; water and derivatives specified separately [7]
Chemical identities are compared here; supplier grades, concentrations, and stereochemical specifications are separate purchasing attributes. pKa values retain their stated conditions; no quantitative solubility ranking is implied.

When Might You Choose One Instead of the Other?

Choose myristic acid for a C14 free-acid method or derivatization target; choose lauric acid for C12. If the requirement is an emollient such as isopropyl myristate, qualify that ester rather than replacing it with free acid. [1] [3] [7]

Specified starting material

Myristic Acid

Match CH₃–(CH₂)₁₂–COOH and the method’s required chemical form.

Lauric Acid

Match CH₃–(CH₂)₁₀–COOH; verify the identity before substituting a related acid.

Sources: [1] [7]

Before choosing: match the reaction or formulation, then verify the exact form, grade, assay basis, and impurities. These contexts do not establish suitability for an industrial or regulated application.

04

FROM STRUCTURE TO APPLICATION

What Is Myristic Acid Used For?

01

Biofilm laboratory research

TCI documents myristic-acid investigation of Candida albicans biofilm and hyphal formation, expressly for research. This direct experimental context does not establish an approved antifungal treatment. [4]

02

Ester-synthesis intermediate

Attributed industrial references identify ester synthesis for flavor/perfume contexts. Emollient performance of isopropyl myristate belongs to that ester and its formulation, rather than to the free acid. [3] [14]

05

CHOOSE THE RIGHT SPECIFICATION

Buying Myristic Acid

Selecting myristic acid involves more than the lowest price. Start with your application, then define purity, grade, quantity, documentation, and packaging.

1

What Are You Buying It For?

Intended use
Chemical Synthesis

TCI’s 99% titration headline accompanies a separate 98% GC specification. Sigma Grade 99% has an unstated assay method and product-specific −20 °C storage. Wako’s verified Asia catalog lists Japanese JPY prices; no US price or exchange-rate comparison is inferred. Match the procedure’s identity and impurity specification; request a lot COA and current regional SDS.

2

Define Your Requirements

These are requirements you can request, not a list of guaranteed available combinations. Confirm each product’s actual specification.

Set your requirements to prepare a sourcing brief.
06

SOURCE WITH CONTEXT

Myristic Acid Suppliers

Compare specific products and package options. Listings are not ranked recommendations.

3 suppliers · 3 products · 7 package listingsLatest supplier check: October 3, 2026

Package sizes stay grouped under the supplier product. Assay methods, product forms, and regional markets remain visible. TCI’s 99% titration headline accompanies a separate 98% GC specification. Sigma Grade 99% has an unstated assay method and product-specific −20 °C storage. Wako’s verified Asia catalog lists Japanese JPY prices; no US price or exchange-rate comparison is inferred.

Scroll horizontally if needed. Supplier and package identity stay visible.

7 package listings grouped under three supplier products
SupplierProduct / GradePurity / AssayPackage SizePublic PriceNormalized PriceDocumentationLast CheckedAction
TCI AmericaMyristic AcidNamed grade not statedM0476 · 25 gHeadline emphasizes 99% titration; GC specification is separately 98%, not 99%.GC: minimum 98.0%
Neutralization titration: minimum 99.0%
25 g$21.00USD · US public priceNot comparedGrades, assay bases, or forms differ
COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: TCI America
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.
View Product: TCI America, M0476 · 25 g (opens new tab)
Named grade not statedM0476 · 500 gHeadline emphasizes 99% titration; GC specification is separately 98%, not 99%.GC: minimum 98.0%
Neutralization titration: minimum 99.0%
500 g$33.00USD · US public priceNot comparedGrades, assay bases, or forms differView Product: TCI America, M0476 · 500 g (opens new tab)
Sigma-AldrichMyristic AcidSigma GradeM3128-10G500 g list price shown; promotional USD 111.35 was also displayed. Product storage −20 °C differs from ambient shipment and other suppliers.Minimum 99%; method not stated10 g$56.50USD · US public list priceNot comparedGrades, assay bases, or forms differ
COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: Sigma-Aldrich
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.
View Product: Sigma-Aldrich, M3128-10G (opens new tab)
Sigma GradeM3128-100G500 g list price shown; promotional USD 111.35 was also displayed. Product storage −20 °C differs from ambient shipment and other suppliers.Minimum 99%; method not stated100 g$106.00USD · US public list priceNot comparedGrades, assay bases, or forms differView Product: Sigma-Aldrich, M3128-100G (opens new tab)
Sigma GradeM3128-500G500 g list price shown; promotional USD 111.35 was also displayed. Product storage −20 °C differs from ambient shipment and other suppliers.Minimum 99%; method not stated500 g$131.00USD · US public list priceNot comparedGrades, assay bases, or forms differView Product: Sigma-Aldrich, M3128-500G (opens new tab)
FUJIFILM WakoMyristic AcidWako Special Grade130-03432Asia catalog explicitly states prices are Japan list prices; ask the local distributor for regional retail price. No US availability or exchange-rate equivalence inferred.98.0+% (Capillary GC)25 g¥2,100JPY · Japan list prices on Asia catalogNot comparedDifferent currency / market
COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: FUJIFILM Wako
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.
View Product: FUJIFILM Wako, 130-03432 (opens new tab)
Wako Special Grade134-03435Asia catalog explicitly states prices are Japan list prices; ask the local distributor for regional retail price. No US availability or exchange-rate equivalence inferred.98.0+% (Capillary GC)500 g¥5,560JPY · Japan list prices on Asia catalogNot comparedDifferent currency / marketView Product: FUJIFILM Wako, 134-03435 (opens new tab)

TCI America

Myristic Acid

GC: minimum 98.0%
Neutralization titration: minimum 99.0%

Named grade not stated
Headline emphasizes 99% titration; GC specification is separately 98%, not 99%.

25 g

M0476 · 25 g
Public price
$21.00USD · US public price
Normalized price
Not comparedGrades, assay bases, or forms differ
View Product: TCI America, M0476 · 25 g (opens new tab)

500 g

M0476 · 500 g
Public price
$33.00USD · US public price
Normalized price
Not comparedGrades, assay bases, or forms differ
View Product: TCI America, M0476 · 500 g (opens new tab)

Documentation

COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: TCI America
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.

Last checked:

Sigma-Aldrich

Myristic Acid

Minimum 99%; method not stated

Sigma Grade
500 g list price shown; promotional USD 111.35 was also displayed. Product storage −20 °C differs from ambient shipment and other suppliers.

10 g

M3128-10G
Public price
$56.50USD · US public list price
Normalized price
Not comparedGrades, assay bases, or forms differ
View Product: Sigma-Aldrich, M3128-10G (opens new tab)

100 g

M3128-100G
Public price
$106.00USD · US public list price
Normalized price
Not comparedGrades, assay bases, or forms differ
View Product: Sigma-Aldrich, M3128-100G (opens new tab)

500 g

M3128-500G
Public price
$131.00USD · US public list price
Normalized price
Not comparedGrades, assay bases, or forms differ
View Product: Sigma-Aldrich, M3128-500G (opens new tab)

Documentation

COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: Sigma-Aldrich
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.

Last checked:

FUJIFILM Wako

Myristic Acid

98.0+% (Capillary GC)

Wako Special Grade
Asia catalog explicitly states prices are Japan list prices; ask the local distributor for regional retail price. No US availability or exchange-rate equivalence inferred.

25 g

130-03432
Public price
¥2,100JPY · Japan list prices on Asia catalog
Normalized price
Not comparedDifferent currency / market
View Product: FUJIFILM Wako, 130-03432 (opens new tab)

500 g

134-03435
Public price
¥5,560JPY · Japan list prices on Asia catalog
Normalized price
Not comparedDifferent currency / market
View Product: FUJIFILM Wako, 134-03435 (opens new tab)

Documentation

COA lookup on product page (opens new tab)SDSCheck supplierCOOCheck supplier
Document notes: FUJIFILM Wako
  • A product-specific certificate retrieval option was visible; no lot certificate was reviewed. Open the product page and use its certificate section.
  • A current regional SDS was not verified in this pass.
  • Origin-document availability was not verified. Country of origin is unverified and is not inferred.

Last checked:

Documentation evidence

COA = Certificate of Analysis · SDS = Safety Data Sheet · COO = Certificate of Origin.

Lookup means a retrieval option was visible, not that a lot certificate was reviewed. Check supplier means availability or the applicable document was not verified.

Prices may vary by quantity, account, contract, geography, and availability. These products have different grades, assay bases, or forms; no normalized comparison is shown. Foreign-market prices are reference listings only. No currency conversion, mass-to-volume conversion, or ranking is applied. Confirm equivalent specifications and a current quote before comparison. [4] [5] [6]

Verification limits & placement policy

Melting ranges: CONFLICT UNRESOLVED. Specification and reference ranges overlap partly but differ. Composition/method cause not established; values retained with source type. pKa / density: OMITTED. Compiled 4.90 lacks matched conditions; relative density near 54 °C is not a room-temperature powder-density measurement. Water solubility: CONDITION-DEPENDENT. 22 mg/L at 30 °C is not directly ranked against lauric 4.81 mg/L at 25 °C. Both temperature and method context matter. Boiling point: CONDITION-DEPENDENT. 250 °C at 100 mmHg is reduced-pressure, not a normal boiling point.

Only the displayed identity, specification, packages, public prices and stated documentation evidence were reviewed. Current stock, lead times, shipping eligibility, contract pricing, lot certificates, and regulatory suitability are unverified.

There are no paid placements. Future paid listings will show “Sponsored” in both views; payment will not determine chemistry interpretation or imply a ranking.

07

PLAN A LARGER ORDER

Need Myristic Acid in Bulk?

Turn your requirements into a clear supplier brief.

RFQ PROTOTYPE
Bulk RFQ feature — coming soon. Prototype form: submissions are not currently sent to suppliers. Use sample details to prepare an on-screen brief.
Prepare a bulk request Prototype form

The prefilled CAS identifies this profile’s principal form. Confirm or edit it for the requested product, especially a hydrate, stereoisomer, or salt. State the exact form and concentration before using the brief.

Prototype only · No request will be sent
08

A BUYER’S CHECKLIST

Before You Buy Myristic Acid

Selections remain only while this page is open.

09

FOR YOUR REFERENCE

Myristic Acid Technical Reference

Identity, product reference properties, and handling context.

Identification Names, formula & identifiers
Principal CAS
544-63-8
Identity focus
Neutral free acid; water and derivatives specified separately
Formula
C₁₄H₂₈O₂
Molecular weight
228.37 g/mol
IUPAC name
tetradecanoic acid
Connectivity SMILES
CCCCCCCCCCCCCC(=O)O
Identity SMILES
CCCCCCCCCCCCCC(=O)O
InChI
InChI=1S/C14H28O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14(15)16/h2-13H2,1H3,(H,15,16)
PubChem CID
11005

Connectivity SMILES describes connectivity; it is not an independent stereochemical assignment. CAS and product-form distinctions are supported by the supplier listings. [1] [4] [5] [6]

Physical Properties Product references & conditions

Solid at 20 °C. Supplier melting intervals vary; near-melting density records require their stated temperature and reference basis. [13] [4] [5]

Melting specifications/references
TCI: 54–57 °C specification; Wako: 53–56 °C reference; Sigma: 52–54 °C literature reference [4]
Reduced-pressure boiling reference
Sigma M3128: 250 °C at 100 mmHg [5]
Water-solubility reference
TCI and attributed Yalkowsky: 22 mg/L at 30 °C; method unstated [4]

Hydrate, concentration, stereoisomer, and temperature can change the relevant specification. Product reference data are not a reviewed lot certificate.

Acid/Base Properties Verified values & missing data

A numeric pKa was not verified for the selected identity in this review; no value is inferred. [2]

Melting ranges: CONFLICT UNRESOLVED. Specification and reference ranges overlap partly but differ. Composition/method cause not established; values retained with source type. pKa / density: OMITTED. Compiled 4.90 lacks matched conditions; relative density near 54 °C is not a room-temperature powder-density measurement. Water solubility: CONDITION-DEPENDENT. 22 mg/L at 30 °C is not directly ranked against lauric 4.81 mg/L at 25 °C. Both temperature and method context matter. Boiling point: CONDITION-DEPENDENT. 250 °C at 100 mmHg is reduced-pressure, not a normal boiling point.

Temperature, ionic strength, and the use of activities versus concentrations matter in quantitative work. These reference values are not buffer recipes.

Safety at a Glance Product-specific hazards

TCI M0476 identifies skin and eye irritation. Sigma lists combustible-solid storage and exact-product cold storage while shipping at ambient temperature; shipping and long-term storage are separate instructions. Avoid powder/contact exposure and handle warmed acid with the applicable product controls. [4] [5] [6]

Hazard classifications can vary by concentration, product, supplier and jurisdiction. Review the SDS for the exact product before handling. This summary does not replace the SDS.

Supplier safety information and SDS retrieval (opens new tab)

A product-page safety classification is not verification of every regional SDS. Confirm product code, chemical form and current local document.

Review supplier documentation
10

COMMON QUESTIONS

Myristic Acid FAQ

What distinguishes Myristic Acid?

Twelve CH₂ groups connect CH₃ to COOH. There is one acid group, no alkene and no stereocenter in the neutral molecule. [1]

How does it differ from Lauric Acid?

Lauric acid is C12 and myristic acid is C14. The extra two methylenes change the residue and thermal context, but a supplier melting range or assay cannot establish finished-emulsion performance. [7]

What must a buyer specify?

TCI’s 99% titration headline accompanies a separate 98% GC specification. Sigma Grade 99% has an unstated assay method and product-specific −20 °C storage. Wako’s verified Asia catalog lists Japanese JPY prices; no US price or exchange-rate comparison is inferred. [4]

Are the listed products directly price-comparable?

No. The table retains differing grades, assay bases, forms, and markets. No normalized ranking or currency conversion is applied. [5]

What reference data still need checking?

Melting ranges: CONFLICT UNRESOLVED. Specification and reference ranges overlap partly but differ. Composition/method cause not established; values retained with source type. pKa / density: OMITTED. Compiled 4.90 lacks matched conditions; relative density near 54 °C is not a room-temperature powder-density measurement. Water solubility: CONDITION-DEPENDENT. 22 mg/L at 30 °C is not directly ranked against lauric 4.81 mg/L at 25 °C. Both temperature and method context matter. Boiling point: CONDITION-DEPENDENT. 250 °C at 100 mmHg is reduced-pressure, not a normal boiling point.

Can I request a bulk quote here?

The RFQ is a prototype that prepares an on-screen brief. Nothing is sent to suppliers. Confirm actual bulk terms directly with the supplier.

11

TRACE THE INFORMATION

Sources & Editorial Notes

Identity and compiled reference values are separated from supplier-specific specifications. Structural comparisons and buyer guidance are editorial interpretation. Sources were checked October 3, 2026; supplier information can change.

  1. PubChem · chemical identity (opens new tab)

    Neutral molecular identity verified independently through PUG REST; CAS also checked on all selected supplier products.

  2. PubChem / HSDB · dissociation references (opens new tab)

    No numeric field promoted: insufficient conditions or unresolved conflicting records.

  3. PubChem / HSDB · application references (opens new tab)

    Attributed application records reviewed claim by claim. Free acid, intermediate, derivative and biological context are distinguished.

  4. TCI America · commercial product (opens new tab)

    Direct product checked October 3, 2026. Identity, listed assay methods, packages, market, prices and documentation interfaces inspected. Lot certificates and stock are not verified.

  5. Sigma-Aldrich · commercial product (opens new tab)

    Direct product checked October 3, 2026. Identity, listed assay methods, packages, market, prices and documentation interfaces inspected. Lot certificates and stock are not verified.

  6. FUJIFILM Wako · commercial product (opens new tab)

    Direct product checked October 3, 2026. Identity, listed assay methods, packages, market, prices and documentation interfaces inspected. Lot certificates and stock are not verified.

  7. Lauric Acid · identity (opens new tab)

    Primary structural comparison. Practical interpretation does not establish suitability.

  8. Decanoic Acid · identity (opens new tab)

    Related identity and structural relationship.

  9. Octanoic Acid · identity (opens new tab)

    Related identity and structural relationship.

  10. Sebacic Acid · identity (opens new tab)

    Related identity and structural relationship.

  11. Lauric Acid · dissociation references (opens new tab)

    Only independently reviewed values are promoted into the comparison; no condition-free acidity ranking.

  12. OpenStax · Carboxylic-acid structure and properties (opens new tab)

    General carboxylate resonance, acidity and structural interpretation; not authority for this acid’s quantitative constants.

  13. PubChem / HSDB · attributed physical references (opens new tab)

    Attributed references and conditions reviewed; unsupported estimates and cross-isomer data excluded.

  14. Sigma W355690 · isopropyl myristate derivative (opens new tab)

    CAS 110-27-0 ester and its emollient context; not a free-myristic-acid use.

Review limits

Melting ranges: CONFLICT UNRESOLVED. Specification and reference ranges overlap partly but differ. Composition/method cause not established; values retained with source type. pKa / density: OMITTED. Compiled 4.90 lacks matched conditions; relative density near 54 °C is not a room-temperature powder-density measurement. Water solubility: CONDITION-DEPENDENT. 22 mg/L at 30 °C is not directly ranked against lauric 4.81 mg/L at 25 °C. Both temperature and method context matter. Boiling point: CONDITION-DEPENDENT. 250 °C at 100 mmHg is reduced-pressure, not a normal boiling point.

This informational prototype is not a supplier, quotation service, or endorsement of a product’s fitness for an application. Buyers should verify the applicable specification, certification, and regulatory requirements for their intended use.