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L(+)-Lactic acid

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L(+)-Lactic acid Basic information

Product Name:
L(+)-Lactic acid
Synonyms:
  • 2-HYDROXYPROPIONIC ACID
  • L-Lactic acid, crystalline, 98.0%+
  • L-(+)-2-HYDROXYPROPANOIC ACID
  • L-2-HYDROXYPROPIONIC ACID
  • SARCOLACTIC ACID
  • (S)-(+)-LACTIC ACID
  • (S)-(+)-2-HYDROXYPROPANOIC ACID
  • (S)-2-HYDROXYPROPIONIC ACID
CAS:
79-33-4
MF:
C3H6O3
MW:
90.08
EINECS:
201-196-2
Product Categories:
  • Functional Materials
  • Hydroxycarboxylic Acids (for High-Performance Polymer Research)
  • Reagent for High-Performance Polymer Research
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • Food additive and acidulant
  • Food additives
Mol File:
79-33-4.mol
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L(+)-Lactic acid Chemical 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
FEMA 
2611 | LACTIC ACID
refractive index 
n20/D 1.427
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
optical activity
[α]20/D 13.5°, c = 2.5 in 1.5 M NaOH
Water Solubility 
SOLUBLE
Sensitive 
Hygroscopic
Merck 
14,5337
JECFA Number
930
BRN 
1720251
InChIKey
JVTAAEKCZFNVCJ-REOHCLBHSA-N
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)
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Safety Information

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
3-10
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
29181100
Toxicity
LD50 intraperitoneal in mouse: 3194mg/kg

MSDS

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L(+)-Lactic acid Usage And Synthesis

Chemical Properties

Crystalline Solid

Uses

Occurs in small quantities in the blood and muscle fluid of man and animals. The lactic acid concentration increases in muscle and blood after vigorous activity. L-(+)-Lactic acid is also present in liver, kidney, thymus gland, human amniotic fluid, and o

Uses

It is most commonly used for fluid resuscitation after blood loss due to trauma, surgery, or burn injury. It is used in the agricultural, chemical, leather processing, pharmaceuticals, and cosmetics industries, used as an electroplating agent, food/feed additive, pH regulator, cleaning/washing agent, and tanning agent; used to flavor animal feeds; used as a solvent and intermediate in chemical production, as a pH regulator in fabric finishing, and in paints, coatings, soaps, and cleaning products; used to make large scale and fine chemicals, pulp-paper-paper products, food products, and plastic products, in mining, health services, agriculture-forestry-fishing, and building and construction work.

Definition

ChEBI: An optically active form of lactic acid having (S)-configuration.

Purification Methods

Purify lactic acid by fractional distillation at 0.1mm pressure, followed by fractional crystallisation from diethyl ether/isopropyl ether (1:1, dried with sodium). [Borsook et al. J Biol Chem 102 449 1933.] The solvent mixture, *benzene/diethyl ether (1:1) containing 5% pet ether (b 60-80o) has also been used. [Brin Biochemical Preparations 3 61 1953, Beilstein 3 IV 633.]

L(+)-Lactic acid Preparation Products And Raw materials

Raw materials

Preparation Products

L(+)-Lactic acidSupplier

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