71277-09-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71277-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,7 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 71277-09:
(7*7)+(6*1)+(5*2)+(4*7)+(3*7)+(2*0)+(1*9)=123
123 % 10 = 3
So 71277-09-3 is a valid CAS Registry Number.