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Builders and chelating agents

Galactaric acid

Also known as mucic acid, Saccharolactic acid, Galactosaccharic acid

CAS 526-99-8Formula C6H10O8Molar mass 210.14 g/molEC 208-404-0
GHS signal word: Warning. Pictograms: Harmful or irritant 14 suppliers listed
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Galactaric acid chemical structure, C6H10O8, CAS 526-99-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
526-99-8
Formula
C6H10O8
Appearance
Crystalline powder
Solubility
ACICULAR CRYSTALS, SOL IN WATER /AMMONIUM SALT/
HS code
291819
Category
Builders and chelating agents
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Galactaric acid?

Plain description, key identifiers and synonyms

Galactaric acid is a hexaric acid resulting from formal oxidative ring cleavage of galactose. It has a role as a human metabolite. It is a conjugate acid of a galactarate(1-) and a galactaric acid anion.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
CAS number
526-99-8 CAS number cross-checked
EC number
208-404-0
Molecular formula
C6H10O8
UNII
E149J5OTIF
MDL number
MFCD00004239
INCI name
GALACTARIC ACID
InChIKey
DSLZVSRJTYRBFB-DUHBMQHGSA-N
InChI
InChI=1S/C6H10O8/c7-1(3(9)5(11)12)2(8)4(10)6(13)14/h1-4,7-10H,(H,11,12)(H,13,14)/t1-,2+,3+,4-
Canonical SMILES
O=C(O)C(O)C(O)C(O)C(O)C(=O)O
Isomeric SMILES
[C@@H]([C@@H]([C@H](C(=O)O)O)O)([C@@H](C(=O)O)O)O

Synonyms

  • mucic acid
  • Saccharolactic acid
  • Galactosaccharic acid
  • (2R,3S,4R,5S)-2,3,4,5-tetrahydroxyhexanedioic acid
  • Schleimsaure
  • Muciliance
  • (2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
  • Tetrahydroxyadipic acid
  • 2R,3S,4R,5S-tetrahydroxy-hexanedioic acid
  • 2,3,4,5-Tetrahydroxyhexanedioic acid
  • strontium galactarate mono-hydrate
  • GlyTouCan:G56286UC
  • D-Galactaric acid
  • Galactarsaeure
  • Schleimsaeure
  • D-galactarate
  • meso-galactaric acid
  • 4-03-00-01292 (Beilstein Handbook Reference)
  • rel-(2R,3S,4R,5S)-2,3,4,5-Tetrahydroxyhexanedioic acid
  • MUCIN
  • D-Mucic acid
  • Galaktarsaeure
  • Mucinsaeure
  • Saccharolactate
  • acido mucico
Show all 34 synonyms
  • hexaric acid
  • d-Zuckersaure
  • Galactosaccharate
  • acido galactarico
  • FA 6:1, O6
  • (2R,3S,4R,5S)-2,3,4,5-tetrahydroxyhexanedioate
  • Mucic acid, 97%
  • Mucic acid, 98%
  • Oristar mca

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Crystalline powderexp.
Solubility
ACICULAR CRYSTALS, SOL IN WATER /AMMONIUM SALT/exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
210.14 g/molcalc.
Exact mass
210.0376 Dacalc.
LogP (octanol/water)
-3.4calc.
Topological polar surface area
155.5 Ųcalc.
Hydrogen bond donors
6calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
5calc.
Heavy atoms
14calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
4calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Galactaric acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 14 suppliers
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Where suppliers are based

14 suppliers in 3 countries

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Galactaric acid price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Substitute for tartaric acid, sequesterant for metal ions (calcium, iron).

Retards hardening of concrete, intermediate for synthesis of heterocyclic compd (pyrroles).

Research chemical.

Use classes: Processing Aids and Additives, Safer Chemical Classes.

Cosmetic ingredient, INCI name GALACTARIC ACID(chelating)

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Functional uses

  • Chelating agent

Cosmetic functions

  • Chelating

How it is made

Probably by degradation of lactose with nitricacid

Prepd by oxidn of lactose & of galactose: kent, tollens, ann 227, 221 (1885), maurer, drefahl, ber 75b, 1489 (1942). Manufacture from wood sawdust: acree, british patent 160,777 (1921). Review: ba lewis et al...in whistler, wolfrom, methods in carbohydrate chemistry vol II (academic press, ny, 1963) pp 38-46.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • Safer Choice ingredient list (USA)
  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Galactaric acid is traded under.

HS 2918.19Indicative HS code

Carboxylic acids with alcohol function but without other oxygen function, their…

World exports in 2024
$1.37B
+0.5% vs 2023, imports $1.18B
2019 to 2024
Top exporters
  1. China23.7%
  2. Italy14.7%
  3. India * partner reported12.0%
Top importers
  1. Germany11.7%
  2. South Korea9.8%
  3. Italy9.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Galactaric acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Galactaric acid, based on the data on this page

What is Galactaric acid?

Galactaric acid is a hexaric acid resulting from formal oxidative ring cleavage of galactose. It has a role as a human metabolite. It is a conjugate acid of a galactarate(1-) and a galactaric acid anion.

What is the CAS number of Galactaric acid?

The CAS registry number of Galactaric acid is 526-99-8.

What is the molecular formula and weight of Galactaric acid?

The molecular formula of Galactaric acid is C6H10O8 and its molar mass is 210.14 g/mol.

What is Galactaric acid used for?

Substitute for tartaric acid, sequesterant for metal ions (calcium, iron). Retards hardening of concrete, intermediate for synthesis of heterocyclic compd (pyrroles). Research chemical. Use classes: Processing Aids and Additives, Safer Chemical Classes.

Is Galactaric acid hazardous?

Galactaric acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Galactaric acid?

Galactaric acid is usually classified under HS code 291819 (Carboxylic acids with alcohol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Galactaric acid?

CompoundList lists 14 suppliers of Galactaric acid in India, China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Galactaric acid in India?

7 suppliers in India list Galactaric acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Galactaric acid?

Suppliers quote Galactaric acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Galactaric acid

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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