91587-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91587-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,8 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91587-84:
(7*9)+(6*1)+(5*5)+(4*8)+(3*7)+(2*8)+(1*4)=167
167 % 10 = 7
So 91587-84-7 is a valid CAS Registry Number.