78834-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78834-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,3 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78834-80:
(7*7)+(6*8)+(5*8)+(4*3)+(3*4)+(2*8)+(1*0)=177
177 % 10 = 7
So 78834-80-7 is a valid CAS Registry Number.