64637-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64637-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,6,3 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64637-12:
(7*6)+(6*4)+(5*6)+(4*3)+(3*7)+(2*1)+(1*2)=133
133 % 10 = 3
So 64637-12-3 is a valid CAS Registry Number.