770653-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 770653-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,0,6,5 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 770653-17:
(8*7)+(7*7)+(6*0)+(5*6)+(4*5)+(3*3)+(2*1)+(1*7)=173
173 % 10 = 3
So 770653-17-3 is a valid CAS Registry Number.