L-Lactic Acid , 80% , 79-33-4

Synonym(s):
(S)-(+)-Lactic acid;(S)-2-Hydroxypropionic acid;Sarcolactic acid

CAS NO.：79-33-4

Empirical Formula: C3H6O3

Molecular Weight: 90.08

MDL number: MFCD00064266

EINECS: 201-196-2

PRODUCT Properties

• Melting point: 52-54°C
• alpha: -13.5 º (c=2.5, 1.5N NaOH)
• Boiling point: 125 °C
• Density: 1.206 g/mL at 25 °C
• vapor pressure: 0.038Pa at 25℃
• refractive index: n20/D 1.427
• FEMA: 2611 | LACTIC ACID
• Flash point: >230 °F
• storage temp.: 2-8°C
• solubility: H₂O: 10 mg/mL, clear, colorless
• pka: pK at 25°, 3.79
• form: Powder/Solid
• color: White
• Odor: odorless acidic
• Odor Type: odorless
• optical activity: [α]20/D 13.5°, c = 2.5 in 1.5 M NaOH
• Water Solubility: SOLUBLE
• Sensitive: Hygroscopic
• JECFA Number: 930
• Merck: 14,5337
• BRN: 1720251
• InChIKey: JVTAAEKCZFNVCJ-REOHCLBHSA-N
• LogP: -0.54 at 20℃
• CAS DataBase Reference: 79-33-4(CAS DataBase Reference)
• NIST Chemistry Reference: (s)-2-Hydroxypropanoic acid(79-33-4)
• EPA Substance Registry System: L-Lactic acid (79-33-4)

Description and Uses

Lactic acid has been used:

• as a component in substrate solution II for lactate dehydrogenase reaction
• as an additive in storage solution A
• as a supplement in the artificial gastric juice preparation for evaluation of degree of resistance Lactobacillus to the gastric stresses

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H315-H318
• Precautionary statements: P264-P280-P302+P352-P305+P351+P338-P332+P313-P362+P364
• Hazard Codes: Xi,C
• Risk Statements: 38-41-34-36/37/38-36-35
• Safety Statements: 26-39-45-36/37/39-36
• RIDADR: 3261
• WGK Germany: 1
• RTECS: OD2800000
• F: 3-10
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• HS Code: 29181100
• Toxicity: LD50 intraperitoneal in mouse: 3194mg/kg