331873-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331873-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,8,7 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 331873-20:
(8*3)+(7*3)+(6*1)+(5*8)+(4*7)+(3*3)+(2*2)+(1*0)=132
132 % 10 = 2
So 331873-20-2 is a valid CAS Registry Number.
331873-20-2Relevant articles and documents
Conformational preferences in 2-alkyl, 2-alkanoyl and 2-aroyl-2-oxo-1,3,2-oxazaphosphorinanes
Afarinkia, Kamyar,Angell, Richard,Jones, Clare L.,Lowman, James
, p. 743 - 746 (2001)
A series of 2-alkyl-, 2-alkonyl- and 2-aroyl-2-oxo-1,3,2-oxazaphosphorinanes bearing N-benzyl, N-benzhydryl and N-trityl substituents are prepared and their conformational preferences in solid phase are discussed.
