87449-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87449-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,4,4 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87449-77:
(7*8)+(6*7)+(5*4)+(4*4)+(3*9)+(2*7)+(1*7)=182
182 % 10 = 2
So 87449-77-2 is a valid CAS Registry Number.