77790-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77790-72-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,9 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77790-72:
(7*7)+(6*7)+(5*7)+(4*9)+(3*0)+(2*7)+(1*2)=178
178 % 10 = 8
So 77790-72-8 is a valid CAS Registry Number.