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243159

Sigma-Aldrich

Methyl (R)-3-hydroxybutyrate

99%

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Synonym(s):
(-)-(3R)-3-Hydroxybutanoic acid methyl ester, (R)-β-Hydroxybutyric acid methyl ester, Methyl (-)-3-hydroxybutanoate, Methyl (-)-3-hydroxybutyrate, Methyl (3R)-hydroxybutanoate
Linear Formula:
CH3CH(OH)CH2CO2CH3
CAS Number:
Molecular Weight:
118.13
Beilstein/REAXYS Number:
6130687
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

99%

optical activity

[α]20/D −19.5°, neat

optical purity

ee: 98% (GLC)

refractive index

n20/D 1.421 (lit.)

bp

56-58 °C/11 mmHg (lit.)

density

1.055 g/mL at 20 °C (lit.)

storage temp.

2-8°C

SMILES string

COC(=O)C[C@@H](C)O

InChI

1S/C5H10O3/c1-4(6)3-5(7)8-2/h4,6H,3H2,1-2H3/t4-/m1/s1

InChI key

LDLDJEAVRNAEBW-SCSAIBSYSA-N

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This Item
270148243167460516
Methyl (R)-3-hydroxybutyrate 99%

243159

Methyl (R)-3-hydroxybutyrate

Methyl (S)-(+)-3-hydroxybutyrate 99%

243167

Methyl (S)-(+)-3-hydroxybutyrate

refractive index

n20/D 1.421 (lit.)

refractive index

n20/D 1.425 (lit.)

refractive index

n20/D 1.421 (lit.)

refractive index

n20/D 1.453 (lit.)

bp

56-58 °C/11 mmHg (lit.)

bp

76-77 °C/12 mmHg (lit.)

bp

63 °C/10 mmHg (lit.)

bp

93-95 °C/5 mmHg (lit.)

density

1.055 g/mL at 20 °C (lit.)

density

1.066 g/mL at 25 °C (lit.)

density

1.071 g/mL at 25 °C (lit.)

density

1.19 g/mL at 25 °C (lit.)

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

-

optical activity

[α]20/D −19.5°, neat

optical activity

[α]19/D −26°, c = 4 in methanol

optical activity

[α]20/D +19.8°, neat

optical activity

[α]23/D +14°, neat

Application

Methyl (R)-3-hydroxybutyrate may be used in the preparation of (R)-(-)-3-hydroxybutanoic acid and poly-(R)-(-)-3-hydroxybutyrate.
Optically active starting material

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

163.4 °F - closed cup

flash_point_c

73 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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Direct Degradation of the Biopolymer Poly [(R)-3-Hydroxybutyric Acid] to (R)-3-Hydroxybutanoic Acid and its Methyl Ester.
Seebach D, et al.
Organic Syntheses, 39-39 (1992)
Synthesis of biodegradable polyesters by polycondensation of methyl (R)-3-hydroxybutyrate and methyl (R)-3-hydroxy-valerate.
Kobayashi T, et al.
Makromol. Chem., Rapid Commun., 14(12), 785-790 (1993)
Diya Alsafadi et al.
New biotechnology, 34, 47-53 (2016-05-26)
Olive mill wastewater (OMW), a highly polluting waste from the olive oil industry, was utilized as sole carbon source for the production of polyhydroxyalkanoate (PHA) by extremely halophilic Haloferax Mediterranei (H. mediterranei) in a one stage cultivation step. H. mediterranei
Xiao-Hong Chen et al.
PloS one, 9(4), e94543-e94543 (2014-04-18)
A novel carbonyl reductase (AcCR) catalyzing the asymmetric reduction of ketones to enantiopure alcohols with anti-Prelog stereoselectivity was found in Acetobacter sp. CCTCC M209061 and enriched 27.5-fold with an overall yield of 0.4% by purification. The enzyme showed a homotetrameric

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