215871-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215871-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,8,7 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 215871-83:
(8*2)+(7*1)+(6*5)+(5*8)+(4*7)+(3*1)+(2*8)+(1*3)=143
143 % 10 = 3
So 215871-83-3 is a valid CAS Registry Number.