3136-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3136-91-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,3 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3136-91:
(6*3)+(5*1)+(4*3)+(3*6)+(2*9)+(1*1)=72
72 % 10 = 2
So 3136-91-2 is a valid CAS Registry Number.