677763-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 677763-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,7,7,6 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 677763-17:
(8*6)+(7*7)+(6*7)+(5*7)+(4*6)+(3*3)+(2*1)+(1*7)=216
216 % 10 = 6
So 677763-17-6 is a valid CAS Registry Number.