683779-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 683779-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,3,7,7 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 683779-63:
(8*6)+(7*8)+(6*3)+(5*7)+(4*7)+(3*9)+(2*6)+(1*3)=227
227 % 10 = 7
So 683779-63-7 is a valid CAS Registry Number.