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Merck

L1250

DL-Lactic acid

85 % (w/w), syrup

Synonyme(s) :

milk acid, 2-Hydroxypropionic acid

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A propos de cet article

Formule linéaire :
CH3CH(OH)COOH
Numéro CAS:
Poids moléculaire :
90.08
UNSPSC Code:
12352201
NACRES:
NA.25
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
1209341
Assay:
≥85.0% (titration)
Concentration:
85 % (w/w)
Form:
syrup
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InChI

1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)

SMILES string

CC(O)C(O)=O

InChI key

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

assay

≥85.0% (titration)

form

syrup

concentration

85 % (w/w)

refractive index

n20/D 1.425 (lit.)

pKa (25 °C)

(1) 3.73, (2) 3.79 (L(+)-isomer)

bp

122 °C/15 mmHg (lit.)

density

1.209 g/mL at 25 °C (lit.)

storage temp.

room temp

Quality Level

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Catégories apparentées

Application

Lactic acid is used as a reagent in organic synthesis (in the manufacture of adhesives). It is used in the leather, textile, and tanning industries. It may be used as a plasticizer, a catalyst, or an acidifying agent. Lactic acid has even been used as a flavoring agent in the manufacture of tobacco products.

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.

Preparation Note

This product is miscible with water (10% v/v).

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

supp_hazards

Classe de stockage

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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Consulter la Bibliothèque de documents

Mohamed Ali Abdel-Rahman et al.
Biotechnology advances, 31(6), 877-902 (2013-04-30)
Fermentative production of optically pure lactic acid has roused interest among researchers in recent years due to its high potential for applications in a wide range of fields. More specifically, the sharp increase in manufacturing of biodegradable polylactic acid (PLA)
James Steele et al.
Current opinion in biotechnology, 24(2), 135-141 (2013-01-03)
It has been known since the 1960s that lactic acid bacteria are essential for the development of cheese flavor. In the ensuing 50 years significant research has been directed at understanding the microbiology, genetics and biochemistry of this process. This
Jan Martinussen et al.
Current opinion in biotechnology, 24(2), 124-129 (2012-12-26)
The ability of lactic acid bacteria to produce lactic acid from various sugars plays an important role in food fermentations. Lactic acid is derived from pyruvate, the end product of glycolysis and thus a fast lactic acid production rate requires
Eileen F O' Shea et al.
Current opinion in biotechnology, 24(2), 130-134 (2013-01-23)
Lactic acid bacteria (LAB) produce a wide variety of antimicrobial peptides (bacteriocins) which contribute to the safety and preservation of fermented foods. This review discusses strategies that have been or could be employed to further enhance the commercial application of
Stephen Yiu Chuen Choi et al.
The Journal of pathology, 230(4), 350-355 (2013-06-05)
The common preference of cancers for lactic acid-generating metabolic energy pathways has led to proposals that their reprogrammed metabolism confers growth advantages such as decreased susceptibility to hypoxic stress. Recent observations, however, suggest that it generates a novel way for

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