81930-36-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81930-36-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,3 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81930-36:
(7*8)+(6*1)+(5*9)+(4*3)+(3*0)+(2*3)+(1*6)=131
131 % 10 = 1
So 81930-36-1 is a valid CAS Registry Number.