Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Chemical Reagents >  Organic reagents >  fatty acid >  L(+)-Lactic acid

L(+)-Lactic acid

Basic information Safety Supplier Related

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
  • bc0001
  • 79-33-4
Mol File:
79-33-4.mol
More
Less

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
vapor pressure 
0.038Pa at 25℃
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
form 
Powder/Solid
pka
pK at 25°, 3.79
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
Merck 
14,5337
JECFA Number
930
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)
More
Less

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

More
Less

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.

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

Definition

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

General Description

L-(+)-Lactic acid is the only naturally occurring lactic acid in humans and mammals. Commercially, few bacteria like Lactobacillus casei, L. delbrueckii, Streptococcus lactis produces L-Lactic acid by fermentation process. Lactic acid activates hydroxycarboxylic acid receptor, G-protein coupled receptor 81 (GPR81).

Flammability and Explosibility

Not classified

Biochem/physiol Actions

L-(+)-Lactic acid is used as a substrate for lactic acid dehydrogenase and lactate oxidase.

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

Shanghai Kanglang Biotechnology Co., Ltd. Gold
Tel
021-61998208 18217752821
Email
sales@klbio.cn
Hebei Zhentian Food Additives Co., Ltd. Gold
Tel
0319-5925599 13373390591
Email
13933732699@163.com
MedBioPharmaceutical Technology Inc Gold
Tel
021-69568360 18916172912
Email
order@med-bio.cn
Watson Biotechnology Co.,Ltd Gold
Tel
027-027-59207879 18140587686
Email
kf@3600chem.com
Shanghai GaoLang Chemical Technology Co., Ltd. Gold
Tel
021-57340939 18017297327
Email
sales@gaolangchemical.com