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L1250

Sigma-Aldrich

DL-Lactic acid

85 % (w/w), syrup

Sinónimos:

milk acid, 2-Hydroxypropionic acid

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About This Item

Fórmula lineal:
CH3CH(OH)COOH
Número de CAS:
50-21-5
Peso molecular:
90.08
Beilstein/REAXYS Number:
1209341
MDL number:
MFCD00004520
UNSPSC Code:
12352201
PubChem Substance ID:
24896274
NACRES:
NA.25

assay

≥85.0% (titration)

Quality Level

200

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

SMILES string

CC(O)C(O)=O

InChI

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

InChI key

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.

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
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

supp_hazards

EUH071

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

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

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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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
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
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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