12767-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12767-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,7,6 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 12767-20:
(7*1)+(6*2)+(5*7)+(4*6)+(3*7)+(2*2)+(1*0)=103
103 % 10 = 3
So 12767-20-3 is a valid CAS Registry Number.