Sequestering-agent context
The G1951 manufacturer description identifies direct sequestering-agent use for gluconic acid. [5]
01
THE ESSENTIALS
Gluconic Acid in 30 Seconds
Four CHOH centers carry the stereochemistry of this D identity. The terminal CH₂OH supplies the fifth non-carboxylic hydroxyl. A condensed formula does not encode the four configurations; the IUPAC name and InChI do.
D-Gluconic acid contains one carboxyl group and five additional hydroxyl groups. The displayed products are aqueous solutions; their concentration is separate from the identity and purity of the neutral D acid. [1] [3]
Safety at a glance — TCI G0036 classifies its acid/lactone solution as causing severe skin burns and eye damage. Wako’s August 2026 Japanese JIS SDS classifies its separate 50% solution as not GHS hazardous, while requiring contact controls. These are different products and classifications; do not generalize the less severe classification to every gluconic-acid solution. Obtain the exact current local SDS. [4] [5] [6] [14]
Condensed connectivity schematic; see the specified stereochemical identity below. [1]
02
GO A LITTLE DEEPER
Understanding Gluconic Acid
THE SIMPLE EXPLANATION
The functional groups
Four CHOH centers carry the stereochemistry of this D identity. The terminal CH₂OH supplies the fifth non-carboxylic hydroxyl. A condensed formula does not encode the four configurations; the IUPAC name and InChI do. [1]
A LITTLE DEEPER
What the structure changes
Carboxyl deprotonation gives gluconate. The hydroxyl groups also permit coordination and intramolecular ester formation. A gluconolactone is a cyclic ester, not the free acid or a hydrate; the TCI product explicitly contains lactone. A titration of this mixture needs its specified method and endpoint. [1] [12]
Technical detail Identity, dissociation & specification
The molecular formula specifies the neutral free acid. A commercial solution, salt, ester or anhydride needs its own composition and specification. Quantitative references retain temperature, pressure, product identity and unresolved method qualifiers. [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 Gluconic Acid Compares
Similar names and functional groups do not mean interchangeable chemicals.
SIDE-BY-SIDE COMPARISON
Gluconic Acid vs Glycolic Acid
Chiral polyhydroxy monocarboxylic acid
versusAchiral alpha-hydroxy monocarboxylic acid
Fixed comparison for this prototype. Acid selectors are disabled; additional comparisons are coming later.
| Property | Gluconic Acid | Glycolic Acid |
|---|---|---|
| Molecular formula | C₆H₁₂O₇ [1] | C₂H₄O₃ [7] |
| Molecular weight | 196.16 g/mol [1] | 76.05 g/mol [7] |
| Carbon atoms | 6 [1] | 2 [7] |
| Carboxyl groups | 1 [1] | 1 [7] |
| Structure | HOCH₂–(CHOH)₄–COOH · D configuration [1] | HO–CH₂–COOH [7] |
| Chemical family | Chiral polyhydroxy monocarboxylic acid [1] | Achiral alpha-hydroxy monocarboxylic acid [7] |
| Identity focus | D neutral acid identity; displayed aqueous acid/lactone products [1] | Free acid [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. The structure schematic does not encode stereochemistry.
When Might You Choose One Instead of the Other?
Choose the D-gluconic product when the method requires that molecular identity, its coordination context or a specified acid/lactone mixture. Choose glycolic acid for its two-carbon hydroxy-acid target. For either solution, request concentration basis, method, water and impurity specifications. [1] [3] [7]
Specified starting material
Gluconic Acid
Match HOCH₂–(CHOH)₄–COOH · D configuration and the method’s required chemical form.
Glycolic Acid
Match HO–CH₂–COOH; verify the identity before substituting a related acid.
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 Gluconic Acid Used For?
Sequestering-agent context
The G1951 manufacturer description identifies direct sequestering-agent use for gluconic acid. It does not establish the metal selectivity, operating pH or performance of an unspecified solution. [5]
Scale-inhibition context
The same manufacturer identifies scale-inhibition use. Validate concentration, process compatibility and the actual formulation; this does not qualify every reagent product for water-treatment service. [5]
06
SOURCE WITH CONTEXT
Gluconic 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. All three listings are solutions priced by solution mass. TCI explicitly contains gluconolactone and reports 45–50% w/w titration; Sigma reports 49–53 wt.% without a method; Wako reports 47–53% titration and its SDS confirms weight-% composition. None establishes chemical or optical purity.
Scroll horizontally if needed. Supplier and package identity stay visible.
| Supplier | Product / Grade | Purity / Assay | Package Size | Public Price | Normalized Price | Documentation | Last Checked | Action |
|---|---|---|---|---|---|---|---|---|
| TCI AmericaGluconic Acid | Named grade not statedG0036 · 25 gAqueous acid/lactone product; mass is solution mass, not neat-acid mass. | Solution concentration: 45–50% w/w by neutralization titration; contains gluconolactone Chemical and stereochemical purity: not stated | 25 g | $27.00USD · US public price | Not comparedGrades, assay bases, or forms differ | Document notes: TCI America
| View Product: TCI America, G0036 · 25 g (opens new tab) | |
| Named grade not statedG0036 · 500 gAqueous acid/lactone product; mass is solution mass, not neat-acid mass. | Solution concentration: 45–50% w/w by neutralization titration; contains gluconolactone Chemical and stereochemical purity: not stated | 500 g | $32.00USD · US public price | Not comparedGrades, assay bases, or forms differ | View Product: TCI America, G0036 · 500 g (opens new tab) | |||
| Sigma-Aldrich / MerckGluconic Acid | Named grade not statedG1951-25GD-gluconic-acid aqueous product. Optical rotation is not a stereochemical-purity percentage. | Solution concentration: 49–53 wt.% in water; method not stated; chemical/optical purity not stated | 25 g | $30.00USD · US public price | Not comparedGrades, assay bases, or forms differ | Document notes: Sigma-Aldrich / Merck
| View Product: Sigma-Aldrich / Merck, G1951-25G (opens new tab) | |
| Named grade not statedG1951-1KGD-gluconic-acid aqueous product. Optical rotation is not a stereochemical-purity percentage. | Solution concentration: 49–53 wt.% in water; method not stated; chemical/optical purity not stated | 1 kg | $56.20USD · US public price | Not comparedGrades, assay bases, or forms differ | View Product: Sigma-Aldrich / Merck, G1951-1KG (opens new tab) | |||
| Named grade not statedG1951-4KGD-gluconic-acid aqueous product. Optical rotation is not a stereochemical-purity percentage. | Solution concentration: 49–53 wt.% in water; method not stated; chemical/optical purity not stated | 4 kg | $145.00USD · US public price | Not comparedGrades, assay bases, or forms differ | View Product: Sigma-Aldrich / Merck, G1951-4KG (opens new tab) | |||
| FUJIFILM WakoGluconic Acid | Named grade not stated074-00402Research / further manufacturing. Japan stock does not confirm US availability. 50% solution; retrieved SDS verifies the composition mass basis, not a lot assay. | Solution concentration: 47–53% (Titration); SDS composition explicitly weight-%; chemical purity not stated | 25 g | $20.00USD · US catalog list price | Not comparedGrades, assay bases, or forms differ | Document notes: FUJIFILM Wako
| View Product: FUJIFILM Wako, 074-00402 (opens new tab) | |
| Named grade not stated078-00405Research / further manufacturing. Japan stock does not confirm US availability. 50% solution; retrieved SDS verifies the composition mass basis, not a lot assay. | Solution concentration: 47–53% (Titration); SDS composition explicitly weight-%; chemical purity not stated | 500 g | $38.00USD · US catalog list price | Not comparedGrades, assay bases, or forms differ | View Product: FUJIFILM Wako, 078-00405 (opens new tab) |
TCI America
Gluconic Acid
Chemical and stereochemical purity: not stated
Named grade not stated
Aqueous acid/lactone product; mass is solution mass, not neat-acid mass.
25 g
G0036 · 25 g- Public price
- $27.00USD · US public price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
500 g
G0036 · 500 g- Public price
- $32.00USD · US public price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
Documentation
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 / Merck
Gluconic Acid
Named grade not stated
D-gluconic-acid aqueous product. Optical rotation is not a stereochemical-purity percentage.
25 g
G1951-25G- Public price
- $30.00USD · US public price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
1 kg
G1951-1KG- Public price
- $56.20USD · US public price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
4 kg
G1951-4KG- Public price
- $145.00USD · US public price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
Documentation
Document notes: Sigma-Aldrich / Merck
- 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
Gluconic Acid
Named grade not stated
Research / further manufacturing. Japan stock does not confirm US availability. 50% solution; retrieved SDS verifies the composition mass basis, not a lot assay.
25 g
074-00402- Public price
- $20.00USD · US catalog list price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
500 g
078-00405- Public price
- $38.00USD · US catalog list price
- Normalized price
- Not comparedGrades, assay bases, or forms differ
Documentation
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.
- The linked SDS was retrieved for this product. Read its stated jurisdiction and obtain the applicable current local version.
- 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
pKa: OMITTED. An attributed acid-dissociation reference at 25 °C lacks a fully established solvent, ionic strength and method context. No unqualified numeric acidity ranking. Neat-acid melting / density: OMITTED. Compiled solid-acid values do not establish properties of the displayed aqueous products; concentration was unstated for some density entries. Solution density: CONDITION-DEPENDENT. 1.234 g/mL at 25 °C applies to G1951 aqueous product, not pure gluconic acid. No conversion to neat-acid mass or volume price is applied. Boiling / solubility: OMITTED. No matched solution boiling point or saturation limit established; general free-acid solubility is not a solution-composition specification. Safety classification: CONFLICT UNRESOLVED. TCI corrosive classification and Wako Japanese JIS unclassified solution are kept product-specific. Composition or classification-method cause was not established.
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 Gluconic Acid in Bulk?
Turn your requirements into a clear supplier brief.
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
08
A BUYER’S CHECKLIST
Before You Buy Gluconic Acid
Selections remain only while this page is open.
09
FOR YOUR REFERENCE
Gluconic Acid Technical Reference
Identity, product reference properties, and handling context.
Identification Names, formula & identifiers
- Principal CAS
- 526-95-4
- Identity focus
- D neutral acid identity; displayed aqueous acid/lactone products
- Formula
- C₆H₁₂O₇
- Molecular weight
- 196.16 g/mol
- IUPAC name
- (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoic acid
- Connectivity SMILES
- C(C(C(C(C(C(=O)O)O)O)O)O)O
- Identity SMILES
- C([C@H]([C@H]([C@@H]([C@H](C(=O)O)O)O)O)O)O
- InChI
- InChI=1S/C6H12O7/c7-1-2(8)3(9)4(10)5(11)6(12)13/h2-5,7-11H,1H2,(H,12,13)/t2-,3-,4+,5-/m1/s1
- PubChem CID
- 10690
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
Displayed aqueous products are liquids. Their physical properties do not describe a hypothetical neat free-acid solid or a gluconolactone product. [13] [4] [5]
- Solution density
- Sigma G1951 aqueous product: 1.234 g/mL at 25 °C; solution-specific supplier reference [5]
- Commercial solution composition
- TCI: 45–50% w/w titration and contains gluconolactone. Composition and method belong to this product. [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]
pKa: OMITTED. An attributed acid-dissociation reference at 25 °C lacks a fully established solvent, ionic strength and method context. No unqualified numeric acidity ranking. Neat-acid melting / density: OMITTED. Compiled solid-acid values do not establish properties of the displayed aqueous products; concentration was unstated for some density entries. Solution density: CONDITION-DEPENDENT. 1.234 g/mL at 25 °C applies to G1951 aqueous product, not pure gluconic acid. No conversion to neat-acid mass or volume price is applied. Boiling / solubility: OMITTED. No matched solution boiling point or saturation limit established; general free-acid solubility is not a solution-composition specification. Safety classification: CONFLICT UNRESOLVED. TCI corrosive classification and Wako Japanese JIS unclassified solution are kept product-specific. Composition or classification-method cause was not established.
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 G0036 classifies its acid/lactone solution as causing severe skin burns and eye damage. Wako’s August 2026 Japanese JIS SDS classifies its separate 50% solution as not GHS hazardous, while requiring contact controls. These are different products and classifications; do not generalize the less severe classification to every gluconic-acid solution. Obtain the exact current local SDS. [4] [5] [6] [14]
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) · FUJIFILM Wako SDS PDF · exact product (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 documentation10
COMMON QUESTIONS
Gluconic Acid FAQ
What distinguishes Gluconic Acid?
Four CHOH centers carry the stereochemistry of this D identity. The terminal CH₂OH supplies the fifth non-carboxylic hydroxyl. A condensed formula does not encode the four configurations; the IUPAC name and InChI do. [1]
How does it differ from Glycolic Acid?
Glycolic acid has one extra hydroxyl and no stereocenter; D-gluconic acid has five extra hydroxyls and four stereocenters. Both have one COOH group. Hydroxyl count is not a count of equivalent carboxylic-acid dissociations. [7]
What must a buyer specify?
All three listings are solutions priced by solution mass. TCI explicitly contains gluconolactone and reports 45–50% w/w titration; Sigma reports 49–53 wt.% without a method; Wako reports 47–53% titration and its SDS confirms weight-% composition. None establishes chemical or optical purity. [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?
pKa: OMITTED. An attributed acid-dissociation reference at 25 °C lacks a fully established solvent, ionic strength and method context. No unqualified numeric acidity ranking. Neat-acid melting / density: OMITTED. Compiled solid-acid values do not establish properties of the displayed aqueous products; concentration was unstated for some density entries. Solution density: CONDITION-DEPENDENT. 1.234 g/mL at 25 °C applies to G1951 aqueous product, not pure gluconic acid. No conversion to neat-acid mass or volume price is applied. Boiling / solubility: OMITTED. No matched solution boiling point or saturation limit established; general free-acid solubility is not a solution-composition specification. Safety classification: CONFLICT UNRESOLVED. TCI corrosive classification and Wako Japanese JIS unclassified solution are kept product-specific. Composition or classification-method cause was not established.
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.
- PubChem · chemical identity (opens new tab)
Neutral molecular identity verified independently through PUG REST; CAS also checked on all selected supplier products.
- PubChem / HSDB · dissociation references (opens new tab)
No numeric field promoted: insufficient conditions or unresolved conflicting records.
- PubChem / HSDB · application references (opens new tab)
Attributed application records reviewed claim by claim. Free acid, intermediate, derivative and biological context are distinguished.
- 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.
- Sigma-Aldrich / Merck · 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.
- 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.
- Glycolic Acid · identity (opens new tab)
Primary structural comparison. Practical interpretation does not establish suitability.
- Lactic Acid · identity (opens new tab)
Related identity and structural relationship.
- Citric Acid · identity (opens new tab)
Related identity and structural relationship.
- Tartaric Acid · identity (opens new tab)
Related identity and structural relationship.
- Glycolic Acid · dissociation references (opens new tab)
Only independently reviewed values are promoted into the comparison; no condition-free acidity ranking.
- OpenStax · Carboxylic-acid structure and properties (opens new tab)
General carboxylate resonance, acidity and structural interpretation; not authority for this acid’s quantitative constants.
- PubChem / HSDB · attributed physical references (opens new tab)
Attributed references reviewed; product, phase, pH and method gaps stated rather than inferred.
- Wako · exact 50% solution Japanese JIS SDS (opens new tab)
August 7, 2026; matching codes, D identity and composition weight basis verified. Product-specific unclassified status does not override TCI classification.
Review limits
pKa: OMITTED. An attributed acid-dissociation reference at 25 °C lacks a fully established solvent, ionic strength and method context. No unqualified numeric acidity ranking. Neat-acid melting / density: OMITTED. Compiled solid-acid values do not establish properties of the displayed aqueous products; concentration was unstated for some density entries. Solution density: CONDITION-DEPENDENT. 1.234 g/mL at 25 °C applies to G1951 aqueous product, not pure gluconic acid. No conversion to neat-acid mass or volume price is applied. Boiling / solubility: OMITTED. No matched solution boiling point or saturation limit established; general free-acid solubility is not a solution-composition specification. Safety classification: CONFLICT UNRESOLVED. TCI corrosive classification and Wako Japanese JIS unclassified solution are kept product-specific. Composition or classification-method cause was not established.
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.