157162-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157162-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,1,6 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157162-81:
(8*1)+(7*5)+(6*7)+(5*1)+(4*6)+(3*2)+(2*8)+(1*1)=137
137 % 10 = 7
So 157162-81-7 is a valid CAS Registry Number.
157162-81-7Relevant articles and documents
SYNTHESIS OF DEOXYAZEPINOMYCIN
Bridson, Peter K.
, p. 1007 - 1014 (2007/10/02)
The syntheses of several new derivatives of imidazodiazepin-8-one are described.