76662-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76662-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,6 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76662-57:
(7*7)+(6*6)+(5*6)+(4*6)+(3*2)+(2*5)+(1*7)=162
162 % 10 = 2
So 76662-57-2 is a valid CAS Registry Number.