77153-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77153-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,5 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77153-78:
(7*7)+(6*7)+(5*1)+(4*5)+(3*3)+(2*7)+(1*8)=147
147 % 10 = 7
So 77153-78-7 is a valid CAS Registry Number.