Tartaric Acid

Description

DL-2,3-Dihydroxybutanedioic acid · CAS 526-83-0 · C4H6O6.

Identification

CAS Registry Number	526-83-0
PubChem CID	875
Molecular formula	C4H6O6
IUPAC name	2,3-dihydroxybutanedioic acid
FEMA number	3044
JECFA number	621

Computed Descriptors

Molecular Weight	150.09
XLogP3	-1.9
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	3
Exact Mass	150.01643791
Monoisotopic Mass	150.01643791
Topological Polar Surface Area	115
Heavy Atom Count	10
Formal Charge	0

Physical description & handling notes

• White solid; [ICSC] Colorless or white odorless solid; [JECFA] White odorless crystalline powder; [Acros Organics MSDS]
• colourless or translucent crystals, or a white, fine to granular crystaline powder which is odourless with an acid taste
• soluble in water and alcohol; 1 gm in 0.8 ml water
• 1 g in 3 ml 95% alcohol (in ethanol)
• 115.46 Ų [M-H]- [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]
• 124.4 Ų [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]

Regulatory Status

Regulatory & Food Contact	FLAVOURING_AGENT: Flavouring Agent FLAVOURING_AGENTFood Additives -> ACID; ANTIOXIDANT_SYNERGIS: Flavouring Agent Flavoring Agents No safety concern at current levels of intake when used as a flavouring agent TRS 896-JECFA 53/67 FAS 44-JECFA 53/229
GHS notification summary	5.1% (26 / 506)

GHS Hazard Classification

GHS notification summary	5.1% (26 / 506)
Reported hazard statements	H315 (22.1%), H318 (53.6%), H319 (41.3%), H335 (15.4%)

Documented Uses

• Used as a synergist for antioxidants, acid, emulsifier, sequestrant, and flavoring agent; [JECFA]
• Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
• Flavouring Agent -> FLAVOURING_AGENTFood Additives -> ACID; ANTIOXIDANT_SYNERGIST; EMULSIFIER; SEQUESTRANT; SYNERGIST -> JECFA Functional Classes
• Flavoring Agents -> JECFA Flavorings Index
• Information on 7 consumer products that contain Tartaric acid in the following categories is provided:

Synonyms

2,3-Dihydroxybutanedioic acid; 526-83-0; DTXCID3026986; CHEBI:15674; DTXSID501031477; RefChem:935304; GlyTouCan:G35198MQ; G35198MQ; 610-885-0; DL-Tartaric acid; 133-37-9; Racemic acid; Uvic acid; Traubensaure; Racemic tartaric acid; DL-Tartrate

Frequently Asked Questions

What are the CAS number and molecular formula of DL-2,3-Dihydroxybutanedioic acid?

CAS 526-83-0; molecular formula C4H6O6; molecular weight — g/mol.

What other names is DL-2,3-Dihydroxybutanedioic acid known by?

2,3-Dihydroxybutanedioic acid, 526-83-0, DTXCID3026986, CHEBI:15674, DTXSID501031477, RefChem:935304.

What is the regulatory status of DL-2,3-Dihydroxybutanedioic acid?

Documented regulatory listings: FLAVOURING_AGENT: Flavouring Agent; FLAVOURING_AGENTFood Additives -> ACID; ANTIOXIDANT_SYNERGIS: Flavouring Agent; Flavoring Agents.

Is DL-2,3-Dihydroxybutanedioic acid classified as hazardous?

5.1% of GHS notifications report no hazard classification (26 of 506).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.