76649-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76649-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,4 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76649-03:
(7*7)+(6*6)+(5*6)+(4*4)+(3*9)+(2*0)+(1*3)=161
161 % 10 = 1
So 76649-03-1 is a valid CAS Registry Number.