258504-50-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258504-50-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,5,0 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 258504-50:
(8*2)+(7*5)+(6*8)+(5*5)+(4*0)+(3*4)+(2*5)+(1*0)=146
146 % 10 = 6
So 258504-50-6 is a valid CAS Registry Number.
258504-50-6Relevant articles and documents
Preparation of 1-bromo-1-chloro-,1,1-dibromo- or 1,1-dichloroalk-1-enes from ketones
Rezaei, Hadi,Normant, Jean F.
, p. 109 - 112 (2007/10/03)
An efficient three steps process for converting aliphatic ketones to the homologous gem-bromochloro, or gem-dibromo alkenes is presented.
