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Merck

T1807

L-(+)-Tartaric acid

BioXtra

Synonym(s):

(2R,3R)-(+)-Tartaric acid, L-Threaric acid

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About This Item

Linear Formula:
HO2CCH(OH)CH(OH)CO2H
CAS Number:
Molecular Weight:
150.09
UNSPSC Code:
12352209
NACRES:
NA.26
PubChem Substance ID:
EC Number:
201-766-0
Beilstein/REAXYS Number:
1725147
MDL number:
Assay:
≥98%
Form:
powder or crystals
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vapor density

5.18 (vs air)

Quality Segment

product line

BioXtra

assay

≥98%

form

powder or crystals

autoignition temp.

797 °F

impurities

≤0.002% Phosphorus (P), ≤0.1% Insoluble matter

ign. residue

≤0.1%

mp

170-172 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.002%, Ca: ≤0.005%, Cu: ≤0.0005%, Fe: ≤0.005%, K: ≤0.005%, Mg: ≤0.001%, NH4+: ≤0.05%, Na: ≤0.005%, Pb: ≤0.001%, Zn: ≤0.0005%

SMILES string

O[C@H]([C@@H](O)C(O)=O)C(O)=O

InChI

1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)/t1-,2-/m1/s1

InChI key

FEWJPZIEWOKRBE-JCYAYHJZSA-N

General description

Tartaric acid is a dicarboxylic acid and occurs as two enantiomers and an achiral meso compound. The L-(+)-tartaric acid is extensively found in nature. It is an acid present in fruits such as grapes and bananas. It possesses an astringent and citrus flavor.

Application

L-(+)-Tartaric acid has been used:
  • in filter-sterilized synthetic grape juice for feast fermentation
  • in crystallization experiment
  • to test the influence of stereospecific interactions between stereoisomers of tartaric acid and proteins during crystallogenesis

Biochem/physiol Actions

L-(+)-Tartaric acid serves as a donor ligand for biological processes. It is used as a food additive in candies and soft drinks to impart a sour taste.


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

302.0 °F - closed cup

flash_point_c

150 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves



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