19773-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19773-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,7 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19773-43:
(7*1)+(6*9)+(5*7)+(4*7)+(3*3)+(2*4)+(1*3)=144
144 % 10 = 4
So 19773-43-4 is a valid CAS Registry Number.
19773-43-4Relevant articles and documents
Efficient Conversion of Alkyl Chlorides into Bromides
Yoon, K. B.,Kochi, J. K.
, p. 1013 - 1014 (1987)
The convenient and selective catalytic conversion of secondary and tertiary alkyl chlorides into bromides with hydrogen bromide in the presence of small amounts of anhydrous iron(III) bromide is described.