770720-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 770720-74-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,0,7,2 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 770720-74:
(8*7)+(7*7)+(6*0)+(5*7)+(4*2)+(3*0)+(2*7)+(1*4)=166
166 % 10 = 6
So 770720-74-6 is a valid CAS Registry Number.