77733-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77733-74-5 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 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77733-74:
(7*7)+(6*7)+(5*7)+(4*3)+(3*3)+(2*7)+(1*4)=165
165 % 10 = 5
So 77733-74-5 is a valid CAS Registry Number.