81587-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81587-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,8 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81587-39:
(7*8)+(6*1)+(5*5)+(4*8)+(3*7)+(2*3)+(1*9)=155
155 % 10 = 5
So 81587-39-5 is a valid CAS Registry Number.