15981-83-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15981-83-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,8 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15981-83:
(7*1)+(6*5)+(5*9)+(4*8)+(3*1)+(2*8)+(1*3)=136
136 % 10 = 6
So 15981-83-6 is a valid CAS Registry Number.