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L1250

Sigma-Aldrich

DL-Lactic acid

85 % (w/w), syrup

Synonyme(s) :

milk acid, 2-Hydroxypropionic acid

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About This Item

Formule linéaire :
CH3CH(OH)COOH
Numéro CAS:
50-21-5
Poids moléculaire :
90.08
Numéro Beilstein :
1209341
Numéro MDL:
MFCD00004520
Code UNSPSC :
12352201
ID de substance PubChem :
24896274
Nomenclature NACRES :
NA.25

Pureté

≥85.0% (titration)

Niveau de qualité

200

Forme

syrup

Concentration

85 % (w/w)

Indice de réfraction

n20/D 1.425 (lit.)

pKa (25 °C)

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

Point d'ébullition

122 °C/15 mmHg (lit.)

Densité

1.209 g/mL at 25 °C (lit.)

Température de stockage

room temp

Chaîne SMILES 

CC(O)C(O)=O

InChI

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

Clé InChI

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

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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.

Actions biochimiques/physiologiques

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.

Notes préparatoires

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

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314

Classification des risques

Eye Dam. 1 - Skin Corr. 1C

Risques supp

EUH071

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

235.4 °F - closed cup

Point d'éclair (°C)

113 °C - closed cup

Équipement de protection individuelle

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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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)
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
Annabelle Olsson et al.
Journal of wildlife diseases, 49(3), 560-567 (2013-06-20)
Using a prospective, randomized study design we demonstrate that midazolam sedation minimizes acidosis compared with physical restraint in captive juvenile estuarine crocodiles during handling or noninvasive procedures at preferred body temperature. A dose of midazolam (5.0 mg/kg) was administered intramuscularly
Raffaella Di Cagno et al.
Food microbiology, 33(1), 1-10 (2012-11-06)
Lactic acid fermentation represents the easiest and the most suitable way for increasing the daily consumption of fresh-like vegetables and fruits. Literature data are accumulating, and this review aims at describing the main features of the lactic acid bacteria to
Michael Hawkes et al.
The American journal of tropical medicine and hygiene, 90(4), 605-608 (2014-03-05)
Severe malaria is frequently managed without access to laboratory testing. We report on the performance of point-of-care tests used to guide the management of a cohort of 179 children with severe malaria in a resource-limited Ugandan hospital. Correlation coefficients between
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Chromatograms

application for HPLC

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