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55453

Sigma-Aldrich

β-Hydroxyisovaleric acid

≥95.0% (T)

Synonym(s):

3-Hydroxy-3-methylbutyric acid

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About This Item

Empirical Formula (Hill Notation):
C5H10O3
CAS Number:
625-08-1
Molecular Weight:
118.13
Beilstein:
1743952
MDL number:
MFCD00059081
UNSPSC Code:
12352100
PubChem Substance ID:
57651529
NACRES:
NA.22

Assay

≥95.0% (T)

refractive index

n20/D 1.4415 (lit.)

bp

88 °C/1 mmHg (lit.)

mp

−80 °C (lit.)

density

0.938 g/mL at 25 °C (lit.)

SMILES string

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

InChI

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

InChI key

AXFYFNCPONWUHW-UHFFFAOYSA-N

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Application

β-Hydroxyisovaleric acid can be used as as a precursor for steroid alcohols.
It is widely used in the synthesis of the anthrax tetrasaccharide and its analogs as anthrax vaccine candidates. β-hydroxyisovaleric acid can also be used in the synthesis of β-lactones by intramolecular dehydration condensation using 2-methyl-6-nitrobenzoic anhydride (MNBA).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Total synthesis of antigen Bacillus anthracis tetrasaccharide?creation of an anthrax vaccine candidate.
Werz, Daniel B and Seeberger, Peter H
Angewandte Chemie (International Edition in English), 44(39), 6315-6318 (2005)
De novo asymmetric synthesis of anthrax tetrasaccharide and related tetrasaccharide.
Guo, Haibing and O?Doherty, George A
The Journal of Organic Chemistry, 73(14), 5211-5220 (2008)
C Flummer et al.
Journal of animal science, 90 Suppl 4, 372-374 (2013-02-13)
This trial was conducted to investigate whether β-hydroxy β-methyl butyrate (HMB) supplementation during late gestation and throughout lactation would influence colostrum and milk production of sows and neonatal piglet survival (0 to 24 h). Control sows (CON; n = 8)
R Santer et al.
Molecular genetics and metabolism, 79(3), 160-166 (2003-07-12)
We report the clinical course and biochemical findings of a 10-year-old, mentally retarded girl with late-onset holocarboxylase synthetase (HCS, gene symbol HLCS) deficiency and only partial response to biotin. On treatment, even with an unusually high dose of 200mg/day, activities
Shawn Portal et al.
European journal of applied physiology, 111(9), 2261-2269 (2011-02-18)
The use of ergogenic nutritional supplements is becoming inseparable from competitive sports. β-Hydroxy-β-Methylbutyric acid (HMB) has recently been suggested to promote fat-free mass (FFM) and strength gains during resistance training in adults. In this prospective randomized, double-blind, placebo-controlled study, we
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