72816-63-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72816-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,1 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72816-63:
(7*7)+(6*2)+(5*8)+(4*1)+(3*6)+(2*6)+(1*3)=138
138 % 10 = 8
So 72816-63-8 is a valid CAS Registry Number.