108437-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108437-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,3 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 108437-91:
(8*1)+(7*0)+(6*8)+(5*4)+(4*3)+(3*7)+(2*9)+(1*1)=128
128 % 10 = 8
So 108437-91-8 is a valid CAS Registry Number.