845742-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 845742-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,5,7,4 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 845742-91:
(8*8)+(7*4)+(6*5)+(5*7)+(4*4)+(3*2)+(2*9)+(1*1)=198
198 % 10 = 8
So 845742-91-8 is a valid CAS Registry Number.