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219835

Sigma-Aldrich

2-Hydroxy-3-methylbutyric acid

99%

Synonyme(s) :

2-Hydroxyisovaleric acid

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About This Item

Formule linéaire :
(CH3)2CHCH(OH)CO2H
Numéro CAS:
Poids moléculaire :
118.13
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.22

Pureté

99%

Forme

solid

Pf

86-87 °C (lit.)

Chaîne SMILES 

CC(C)C(O)C(O)=O

InChI

1S/C5H10O3/c1-3(2)4(6)5(7)8/h3-4,6H,1-2H3,(H,7,8)

Clé InChI

NGEWQZIDQIYUNV-UHFFFAOYSA-N

Description générale

Chiral resolution of 2-hydroxy-3-methylbutyric acid without derivatization has been studied by capillary electrophoresis using 2-hydroxypropyl-β-cyclodextrin.

Application

2-Hydroxy-3-methylbutyric acid was employed as internal standard for analysis of ethylene glycol (EG) and γ-hydroxybutyrate (GHB) in whole blood.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


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Consulter la Bibliothèque de documents

S Landaas et al.
Clinica chimica acta; international journal of clinical chemistry, 78(3), 489-493 (1977-08-01)
Examination of urine samples by capillary column gas chromatography and mass spectrometry showed the presence of 2-hydroxyisovaleric acid together with trace amounts of the three branched-chain 2-keto acids in five patients with lactic and ketoacidosis. None of these compounds was
Direct chiral resolution of aliphatic a-hydroxy acids using 2-hydroxypropyl-?-cyclodextrin in capillary electrophoresis.
Kodama S, et al.
Analyst, 124(1), 55-59 (1999)
F Magni et al.
Analytical biochemistry, 220(2), 308-314 (1994-08-01)
A sensitive method for the simultaneous analysis of plasma alpha-ketoisocaproic acid (KIC) and leucine using GC-MS is described. Plasma was deproteinized after addition of both alpha-ketovaleric acid and norleucine as internal standards. Derivatization of the compounds involved protection of the
H M Liebich et al.
Journal of chromatography, 309(2), 225-242 (1984-08-10)
Hydroxy- and oxomonocarboxylic acids in urine of healthy individuals and of patients with diabetic ketoacidosis are analysed as methyl esters and methyl esters/O-methyloximes, respectively, by gas chromatography and gas chromatography-mass spectrometry. The derivatives are pre-fractionated by thin-layer chromatography. The acids
Y M Pan et al.
Journal of analytical toxicology, 25(5), 328-332 (2001-08-14)
The modification of a procedure originally developed for the analysis of ethylene glycol (EG) in serum was also found to permit the simultaneous analysis of gamma-hydroxybutyrate (GHB) in whole blood. The primary feature of the EG procedure was that it

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