63131-40-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63131-40-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,1,3 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 63131-40:
(7*6)+(6*3)+(5*1)+(4*3)+(3*1)+(2*4)+(1*0)=88
88 % 10 = 8
So 63131-40-8 is a valid CAS Registry Number.