157729-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157729-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,2 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157729-57:
(8*1)+(7*5)+(6*7)+(5*7)+(4*2)+(3*9)+(2*5)+(1*7)=172
172 % 10 = 2
So 157729-57-2 is a valid CAS Registry Number.
157729-57-2Relevant articles and documents
A useful acylation method using trichloroacetonitrile and triphenylphosphine for solid phase organic synthesis
Vágó, István,Greiner, István
, p. 6039 - 6041 (2002)
A novel acylation procedure was developed for polymer supported synthesis, with in situ generated acyl chlorides using trichloroacetonitrile and triphenylphosphine.
