213988-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213988-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,8 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 213988-80:
(8*2)+(7*1)+(6*3)+(5*9)+(4*8)+(3*8)+(2*8)+(1*0)=158
158 % 10 = 8
So 213988-80-8 is a valid CAS Registry Number.