87662-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87662-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,6 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87662-74:
(7*8)+(6*7)+(5*6)+(4*6)+(3*2)+(2*7)+(1*4)=176
176 % 10 = 6
So 87662-74-6 is a valid CAS Registry Number.