7734-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7734-65-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,3 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7734-65:
(6*7)+(5*7)+(4*3)+(3*4)+(2*6)+(1*5)=118
118 % 10 = 8
So 7734-65-8 is a valid CAS Registry Number.