12677-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12677-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,6,7 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12677-17:
(7*1)+(6*2)+(5*6)+(4*7)+(3*7)+(2*1)+(1*7)=107
107 % 10 = 7
So 12677-17-7 is a valid CAS Registry Number.