188631-00-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188631-00-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,3 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 188631-00:
(8*1)+(7*8)+(6*8)+(5*6)+(4*3)+(3*1)+(2*0)+(1*0)=157
157 % 10 = 7
So 188631-00-7 is a valid CAS Registry Number.