108537-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108537-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,5,3 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 108537-21:
(8*1)+(7*0)+(6*8)+(5*5)+(4*3)+(3*7)+(2*2)+(1*1)=119
119 % 10 = 9
So 108537-21-9 is a valid CAS Registry Number.