79307-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79307-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,3,0 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79307-81:
(7*7)+(6*9)+(5*3)+(4*0)+(3*7)+(2*8)+(1*1)=156
156 % 10 = 6
So 79307-81-6 is a valid CAS Registry Number.