21890-35-7 Usage
Type of compound
Halogenated derivative of 1,3-butadiene
Physical state
Flammable gas
Common use
Production of synthetic rubber
Application
Chemical intermediate in the synthesis of various organic compounds
Application
Reagent in organic chemical reactions
Hazardous nature
Potential health hazards and environmental effects
Safety measures
Handle with caution and follow proper safety protocols to avoid exposure and accidents
Check Digit Verification of cas no
The CAS Registry Mumber 21890-35-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,9 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21890-35:
(7*2)+(6*1)+(5*8)+(4*9)+(3*0)+(2*3)+(1*5)=107
107 % 10 = 7
So 21890-35-7 is a valid CAS Registry Number.
21890-35-7Relevant articles and documents
Efficient procedures for 1-bromo-1,3-butadiene and 2-bromo-1,3-butadiene
Keegstra,Verkruijsse,Andringa,Brandsma
, p. 721 - 726 (2007/10/02)
Mixtures of Z- and E-1-bromo-1,3-butadiene in which the E- or Z- isomer predominates have been obtained in good yields by treating a mixture of Z- and E-1,4-dibromo-2-butene (90% Z-isomer) or pure E-1,4-dibromo-2-butene, respectively, with powdered potassium hydroxide in high-boiling petroleum. 2-Bromo-1,3-butadiene was obtained in high yields by stirring a mixture of vinylacetylene, concentrated aqueous hydrogen bromide and copper(I) bromide.