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393568

Sigma-Aldrich

α-Bromo-α-methyl-γ-butyrolactone

96%

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25 ML
RM 1,433.00

About This Item

Empirical Formula (Hill Notation):
C5H7BrO2
CAS Number:
33693-67-3
Molecular Weight:
179.01
EC Number:
251-639-9
MDL number:
MFCD00191853
UNSPSC Code:
12352100
PubChem Substance ID:
24864525
NACRES:
NA.22

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Quality Level

100

Assay

96%

form

liquid

refractive index

n20/D 1.494 (lit.)

bp

112 °C/13 mmHg (lit.)

density

1.581 g/mL at 25 °C (lit.)

functional group

bromo
ester

SMILES string

CC1(Br)CCOC1=O

InChI

1S/C5H7BrO2/c1-5(6)2-3-8-4(5)7/h2-3H2,1H3

InChI key

MXEVTHILFFSWOG-UHFFFAOYSA-N

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This Item
B59608444286117757
α-Bromo-α-methyl-γ-butyrolactone 96%

393568

α-Bromo-α-methyl-γ-butyrolactone

α-Bromo-γ-butyrolactone 97%

B59608

α-Bromo-γ-butyrolactone

(R)-(+)-α-Hydroxy-γ-butyrolactone 95%, optical purity ee: 98% (GLC)

444286

(R)-(+)-α-Hydroxy-γ-butyrolactone

α-Methyl-γ-butyrolactone 98%

117757

α-Methyl-γ-butyrolactone

assay

96%

assay

97%

assay

95%

assay

98%

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

bp

112 °C/13 mmHg (lit.)

bp

138 °C/6 mmHg (lit.)

bp

133 °C/10 mmHg (lit.)

bp

78-81 °C/10 mmHg (lit.)

form

liquid

form

liquid

form

liquid

form

-

density

1.581 g/mL at 25 °C (lit.)

density

1.786 g/mL at 25 °C (lit.)

density

1.309 g/mL at 25 °C (lit.)

density

-

refractive index

n20/D 1.494 (lit.)

refractive index

n20/D 1.508 (lit.)

refractive index

n20/D 1.467 (lit.)

refractive index

n20/D 1.432 (lit.)

General description

α-Bromo-α-methyl-γ-butyrolactone is a lactone derivative. It has been reported to be hydrolyzed by paraoxonase/arylesterase (PON1), a purified rabbit serum.[1]

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
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCG2979
    MKBX0914V
    MKBB0344
    08401CH
    20222PI

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    D I Draganov et al.
    The Journal of biological chemistry, 275(43), 33435-33442 (2000-08-10)
    The paraoxonase gene family contains at least three members: PON1, PON2, and PON3. The physiological roles of the corresponding gene products are still uncertain. Until recently, only the serum paraoxonase/arylesterase (PON1) had been purified and characterized. Here we report the

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