L-Lactic acid

Names

[ CAS No. ]:
79-33-4

[ Name ]:
L-Lactic acid

[Synonym ]:
EINECS 201-196-2
MFCD00064266
L-(+)-Lactic acid
L(+)-Lactic acid

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
227.6±0.0 °C at 760 mmHg

[ Melting Point ]:
52-54°C

[ Molecular Formula ]:
C₃H₆O₃

[ Molecular Weight ]:
90.078

[ Flash Point ]:
109.9±16.3 °C

[ Exact Mass ]:
90.031693

[ PSA ]:
57.53000

[ LogP ]:
-0.70

[ Vapour Pressure ]:
0.0±1.0 mmHg at 25°C

[ Index of Refraction ]:
1.451

[ Water Solubility ]:
SOLUBLE

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OD3100000

CHEMICAL NAME :: Lactic acid, L-

CAS REGISTRY NUMBER :: 79-33-4

BEILSTEIN REFERENCE NO. :: 1720251

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C3-H6-O3

MOLECULAR WEIGHT :: 90.09

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3194 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 62,203,1990 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9378 No. of Facilities: 172 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 3082 (estimated) No. of Female Employees: 2158 (estimated)

Safety Information

[ Symbol ]:

GHS05

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H314

[ Precautionary Statements ]:
P280-P305 + P351 + P338-P310

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
C:Corrosive

[ Risk Phrases ]:
R34

[ Safety Phrases ]:
S26-S39-S45-S36/37/39-S36

[ RIDADR ]:
3261

[ WGK Germany ]:
1

[ RTECS ]:
OD2800000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2918110000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

L-alanine
Propyl (S)-2-hydroxypropanoate
(−)-Ethyl L-lactate
(−)-Methyl L-lactate
D-(+)-Glucose
Pyruvic acid
Sodium 2-oxopropanoate
D-mannopyranose
2-dihydroxyphosphinoyloxyacrylic acid

DownStream

(1R)-2-Chloro-2-oxo-1-phenylethyl acetate
(S)-(+)-1,2-Propanediol
(3R,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione
(3R,6R)-3,6-dimethyl-1,4-dioxane-2,5-dione
L-Lactide
1H-Benzimidazole-2-methanol,alpha-methyl-,(alphaS)-(9CI)
Pyruvic acid
n-Butyl lactate
1-Propanol
Propylene Glycol

Customs

[ HS Code ]: 2918199090

[ Summary ]:
2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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