32620-08-9 Usage
General Description
(E)-1-Bromo-1-butene, also known as 1-bromo-2-butene, is a chemical compound with the molecular formula C4H7Br. It is a colorless liquid with a sweet odor, and it is commonly used as an intermediate in the production of various other chemicals. (E)-1-Bromo-1-butene is primarily used in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and other specialty chemicals. It is also sometimes used as a monomer in the production of polymers. The compound is considered to be hazardous, as it is flammable and can cause irritation to the respiratory system and skin upon exposure. Therefore, proper handling and storage procedures should be followed when working with (E)-1-Bromo-1-butene.
Check Digit Verification of cas no
The CAS Registry Mumber 32620-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,6,2 and 0 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 32620-08:
(7*3)+(6*2)+(5*6)+(4*2)+(3*0)+(2*0)+(1*8)=79
79 % 10 = 9
So 32620-08-9 is a valid CAS Registry Number.
32620-08-9Relevant articles and documents
Alkyl Bromide Photobromination: Catalysis by Hydrogen Bromide and the Elimination-Readdition Pathway
Soumillion, Jean-Ph.,Ronneau, Claude,Dejaifve, Pierre
, p. 1907 - 1914 (2007/10/02)
In the photobromination of alkyl bromides, hydrogen bromide is shown to act as a catalyst and a kinetic study implies that two molecules of the acid are involved in catalysis.The catalysis is specific in two ways: only HBr is effective and it operates only with alkyl bromides having a β-hydrogen available for substitution.HBr favours the formation of 1,2-dibromides.This catalytic pathway is superimposed on the classical, uncatalysed mechanism.Isotopic labelling experiments show that an elimination-readdition pathway may also account for part of the reaction (maximum 20percent) but cannot explain the migration of bromine which is observed in the formation of β-dibromides.
