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galactaric acid
galactosaccharic acid

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Name:(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
CAS Number: 526-99-8Picture of molecule3D/inchi
Other(deleted CASRN):1024869-11-1
ECHA EINECS - REACH Pre-Reg:208-404-0
Nikkaji Web:J6.665F
Beilstein Number:1728117
XlogP3-AA:-2.50 (est)
Molecular Weight:210.13930000
Formula:C6 H10 O8
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:chelating agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
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Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
Physical Properties:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Soluble in:
 water, 3300 mg/L @ 14C (exp)
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: chelating agents
BOC Sciences
For experimental / research use only.
Mucic acid
For experimental / research use only.
Mucic acid
EMD Millipore
For experimental / research use only.
Mucic Acid
Muciliance® Fruit
Odor: characteristic
Use: Muciliance® Fruit is a powder of mucic acid obtained from fruit-derived pectins (citrus). Thanks to its potent chelating properties, Muciliance® Fruit is a natural alternative to EDTA that protects the skin from oxidative stress.
Santa Cruz Biotechnology
For experimental / research use only.
Mucic acid ≥97%
Sigma-Aldrich: Aldrich
For experimental / research use only.
Mucic acid 97%
For experimental / research use only.
Mucic Acid >97.0%(T)
Safety Information:
Preferred SDS: View
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
chelating agents
Recommendation for galactaric acid usage levels up to:
 not for fragrance use.
Recommendation for galactaric acid flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):526-99-8
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :3037582
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:2
(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
RTECS:LW5180000 for cas# 526-99-8
 (2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:526-99-8
Pubchem (cid):3037582
Pubchem (sid):134978406
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
Golm Metabolome Database:Search
KEGG (GenomeNet):C00879
HMDB (The Human Metabolome Database):HMDB00639
Export Tariff Code:2917.19.2700
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 not found in nature
 peach plant
Search Trop Picture
D-galactaric acid
dextro-galactaric acid
meso-galactaric acid
 galactosaccharic acid
 mucic acid
1,2,3,4-tetrahydroxy-1,4-butanedicarboxylic acid
 tetrahydroxyadipic acid
(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid
Present in ripe fruits of peach and pear. Formed in grapes and grape must by the action of Botrytis cinerea on galacturonic acid Galactaric acid is the dicarboxylic sugar acid resulting from oxidation glactose with dilute nitric acid. It is a substrate of galactarate O-hydroxycinnamoyltransferase [EC]. (KEGG); It forms a crystalline powder which melts at 213 C. It is insoluble in alcohol, and nearly insoluble in cold water. Due to the symmetry in the molecule, it is optically inactive even though it has chiral carbon atoms (i.e., it is a meso compound). When heated with pyridine to 140 C, it is converted into allommic acid. When digested with fuming hydrochloric acid for some time it is converted into a 2,5-furandicarboxylic acid (FDCA) while on heating with barium sulfide it is transformed into athiophene carboxylic acid. The ammonium salt yields on dry distillation carbon dioxide, ammonia, pyrrol and other substances. The acid when fused with caustic alkalis yields oxalic acid.
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