77759-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77759-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,5 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77759-74:
(7*7)+(6*7)+(5*7)+(4*5)+(3*9)+(2*7)+(1*4)=191
191 % 10 = 1
So 77759-74-1 is a valid CAS Registry Number.