L6661

Lactic acid

meets USP testing specifications

• Synonym(s): DL-Lactic acid, 2-Hydroxypropionic acid
• Linear Formula: CH₃CH(OH)COOH
• CAS Number: 50-21-5
• Molecular Weight: 90.08
• Beilstein: 1209341
• EC Number: 200-018-0
• MDL number: MFCD00004520
• UNSPSC Code: 12352106
• PubChem Substance ID: 24896442
• NACRES: NA.25

Properties

• Agency: USP/NF; meets USP testing specifications
• Assay: 88.0-92.0%
• form: viscous liquid
• refractive index: n20/D 1.425 (lit.)
• pH: 2
• bp: 122 °C/15 mmHg (lit.)
• density: 1.209 g/mL at 25 °C (lit.)
• cation traces: heavy metals: ≤0.001%
• application(s): pharmaceutical (small molecule)
• storage temp.: room temp
• SMILES string: CC(O)C(O)=O
• InChI: 1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
• InChI key: JVTAAEKCZFNVCJ-UHFFFAOYSA-N

Description

Biochem/physiol Actions

In animals, lactic acid is a metabolic compound produced by proliferating cells and during anaerobic conditions such as strenuous exercise. Lactic acid can be oxidized back to pyruvate or converted to glucose via gluconeogenesis. Lactic acid is preferentially metabolized by neurons in several mammal species and during early brain development.

Other Notes

A concentrated solution of lactic acid is typically a mixture of lactic acid lactate and lactic acid. The concentration of this solution is approximately 90% (w/w).

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H314
• Precautionary Statements: P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363 - P405
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1C
• Supplementary Hazards: EUH071
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves