77738-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77738-80-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,3 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77738-80:
(7*7)+(6*7)+(5*7)+(4*3)+(3*8)+(2*8)+(1*0)=178
178 % 10 = 8
So 77738-80-8 is a valid CAS Registry Number.