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H40009

Sigma-Aldrich

2-Hydroxy-2-methylbutyric acid

98%

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Synonym(s):
α-Hydroxy-α-methylbutyric acid, (±)-α-Hydroxy-α-methylbutyric acid, (±)-2-Hydroxy-2-methylbutanoic acid, (±)-2-Hydroxy-2-methylbutyric acid, 2-Hydroxy-2-methylbutanoic acid, 2-Methyl-2-hydroxybutyric acid
Linear Formula:
C2H5C(CH3)(OH)CO2H
CAS Number:
Molecular Weight:
118.13
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

mp

73-75 °C (lit.)

SMILES string

CCC(C)(O)C(O)=O

InChI

1S/C5H10O3/c1-3-5(2,8)4(6)7/h8H,3H2,1-2H3,(H,6,7)

InChI key

MBIQENSCDNJOIY-UHFFFAOYSA-N

Application

2-Hydroxy-2-methylbutyric acid can be used as:
  • A complexing agent in a new electrolytic system, applicable in the isotachophoretic lanthanide separation.
  • An aldehyde surrogate to prepare pyrrolo[1,2-a]quinoxaline derivatives by reacting with 2-(1H-pyrrol-1-yl)aniline.
  • A starting material to synthesize Cr(V) reagent named sodium bis(2-hydroxy-2-methylbutyrato)oxochromate(V) (Aldrich cat. no. ALD00006) applicable in the total synthesis of (−)-taxuyunnanine D.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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α-Hydroxy acid as an aldehyde surrogate: metal-free synthesis of pyrrolo [1, 2-a] quinoxalines, quinazolinones, and other N-heterocycles via decarboxylative oxidative annulation reaction
Viji M, et al.
Royal Society of Chemistry Advances, 10(61), 37202-37208 (2020)
W Dekant et al.
Research report (Health Effects Institute), (102)(102), 29-71 (2001-08-16)
The biotransformation of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and tert-amyl methyl ether (TAME) was studied in humans and in rats after inhalation of 4 and 40 ppm of MTBE, ETBE, and TAME, respectively, for 4 hours, and
Separation and analysis of lanthanides by isotachophoresis coupled with inductively coupled plasma mass spectrometry
Vio L, et al.
Talanta, 99, 586-593 (2012)
Two-phase synthesis of (−)-taxuyunnanine D
Wilde NC, et al.
Journal of the American Chemical Society, 136(13), 4909-4912 (2014)
A Amberg et al.
Toxicological sciences : an official journal of the Society of Toxicology, 55(2), 274-283 (2000-06-01)
tert-Amyl methyl ether (TAME) may be widely used as an additive to gasoline in the future. The presence of this ether in gasoline reduces the tail pipe emission of pollutants. Therefore, widespread human exposure to TAME may occur. To contribute

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