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Crotyl bromide

Name: Crotyl bromide
Brand: ALDRICH
Price: 84 USD
Availability: InStock

technical grade, 85% (mixture of cis & trans)

Synonym(s):

trans-1-Bromo-2-butene

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Size/SKU	Availability	Price
5 g	Available to ship TODAYfromMILWAUKEE	$84.00
25 g	Available to ship TODAYfromMILWAUKEE	$310.00

About This Item

Linear Formula:

CH₃CH=CHCH₂Br

CAS Number:

29576-14-5

Molecular Weight:

135.00

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

24893087

MDL number:

MFCD00000248

Beilstein/REAXYS Number:

1361394

Assay:

85% (mixture of cis & trans)

Form:

liquid

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Properties

grade

technical grade

Quality Segment

100

assay

85% (mixture of cis & trans)

form

liquid

refractive index

n20/D 1.480 (lit.)

bp

97-99 °C (lit.)

density

1.312 g/mL at 25 °C (lit.)

functional group

alkyl halide, bromo

storage temp.

2-8°C

SMILES string

[H]\C(C)=C(\[H])CBr

InChI

1S/C4H7Br/c1-2-3-4-5/h2-3H,4H2,1H3/b3-2+

InChI key

AVMHMVJVHYGDOO-NSCUHMNNSA-N

Description

Application

Crotyl bromide is a general organic reagent that can be used in the total synthesis of biologically important natural products and their derivatives such as (+)-artemisinin, plakortone E and (−)-horsfiline.
It can also be used to prepare analogs of deoxycyclitols, pentopyranoses, 6-deoxyhexoses, hexoses and pseudo-indoxyl derivatives.

Other Notes

remainder 3-bromo-1-butene

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This Item	28115	254584	657484
Sigma-Aldrich C86405 Crotyl bromide	Sigma-Aldrich 28115 Crotyl chloride	Sigma-Aldrich 254584 Crotyl chloride, predominantly trans	Sigma-Aldrich 657484 (E)-2-Bromo-2-butene
description technical grade, 85% (mixture of cis & trans)	description technical, (cis+trans), mixture of cis- and trans-isomers (~1:6), ~70% (GC)	description 95%	description 96%
assay 85% (mixture of cis & trans)	assay ~70% (GC)	assay 95%	assay 96%
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
density 1.312 g/mL at 25 °C (lit.)	density 0.923 g/mL at 20 °C (lit.)	density 0.929 g/mL at 25 °C (lit.)	density 1.332 g/mL at 25 °C (lit.)
refractive index n20/D 1.480 (lit.)	refractive index n20/D 1.430	refractive index n20/D 1.436 (lit.)	refractive index n20/D 1.459 (lit.)
bp 97-99 °C (lit.)	bp 85-86 °C (lit.)	bp 84-85 °C (lit.)	bp 84 °C (lit.)
storage temp. 2-8°C	storage temp. -	storage temp. 2-8°C	storage temp. 2-8°C

Pictograms

GHS02,GHS07

Signal Word

Danger

Hazard Codes

H225,H315,H319,H335

Precautionary Statements

P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

51.8 °F - closed cup

Flash Point (°C)

11 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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