91858-95-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91858-95-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,5 and 8 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91858-95:
(7*9)+(6*1)+(5*8)+(4*5)+(3*8)+(2*9)+(1*5)=176
176 % 10 = 6
So 91858-95-6 is a valid CAS Registry Number.