956512-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 956512-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,6,5,1 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 956512-91:
(8*9)+(7*5)+(6*6)+(5*5)+(4*1)+(3*2)+(2*9)+(1*1)=197
197 % 10 = 7
So 956512-91-7 is a valid CAS Registry Number.