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323594

Sigma-Aldrich

α-Hydroxyisobutyric acid

99%

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Synonym(s):
alpha-Hydroxyisobutyric acid, 2-Hydroxy-2-methylpropionic acid, 2-Methyllactic acid
Linear Formula:
(CH3)2C(OH)COOH
CAS Number:
Molecular Weight:
104.10
Beilstein/REAXYS Number:
1744739
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

99%

form

solid

bp

84 °C/1.5 mmHg (lit.)

mp

76-80 °C (lit.)

SMILES string

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

InChI

1S/C4H8O3/c1-4(2,7)3(5)6/h7H,1-2H3,(H,5,6)

InChI key

BWLBGMIXKSTLSX-UHFFFAOYSA-N

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1 of 4

This Item
58360I1754164976
α-Hydroxyisobutyric acid 99%

323594

α-Hydroxyisobutyric acid

Isobutyric acid puriss. p.a., ≥99.5%

58360

Isobutyric acid

Isobutyric acid 99%

I1754

Isobutyric acid

α-Hydroxyisobutyric acid 98%

164976

α-Hydroxyisobutyric acid

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

mp

76-80 °C (lit.)

mp

−47 °C (lit.)

mp

−47 °C (lit.)

mp

76-80 °C (lit.)

form

solid

form

-

form

liquid

form

solid

bp

84 °C/1.5 mmHg (lit.)

bp

153-154 °C (lit.)

bp

153-154 °C (lit.)

bp

84 °C/1.5 mmHg (lit.)

General description

α-Hydroxyisobutyric acid is a versatile building block in organic synthesis. It serves as a precursor in the synthesis of compounds like isobutylene glycol and methacrylic acid

Application

α-Hydroxyisobutyric acid (HIBA) can be used as:
  • A chelating agent to improve the separation of lanthanides and actinides by liquid chromatography.
  • In the synthesis of room temperature–stabilized, pure, nanocrystalline β-NiMoO4.

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Bimetallic single-source precursor for the synthesis of pure nanocrystalline room temperature-stabilized β-NiMoO4
Moneeb AM, et al.
Ceramics International, 42(1), 1366-1372 (2016)
Electrospray ionization mass spectrometric studies on uranyl complex with α-hydroxyisobutyric acid in water-methanol medium
Jaison PG, et al.
Rapid Communications in Mass Spectrometry, 27(10), 1105-1118 (2013)
From rotational resolved spectra to an extended increment system of planar moments allowing ad-hoc conformational identification ? Exemplification by the broadband microwave spectrum of ??- hydroxyisobutyric acid
P Buschmann, et al.
Journal of Molecular Structure, 1250, 131805-131805 (2022)
Ana Carolina O Costa et al.
Journal of chromatography. A, 1171(1-2), 140-143 (2007-10-09)
The aim of this work was to develop a fast method using capillary electrophoresis for the determination of creatinine in human urine samples. The pH and constituents of the background electrolyte were selected by inspection of effective mobility of creatinine
Thore Rohwerder et al.
Applied and environmental microbiology, 72(6), 4128-4135 (2006-06-06)
Fuel oxygenates such as methyl and ethyl tert-butyl ether (MTBE and ETBE, respectively) are degraded only by a limited number of bacterial strains. The aerobic pathway is generally thought to run via tert-butyl alcohol (TBA) and 2-hydroxyisobutyrate (2-HIBA), whereas further

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