108906-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108906-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,9,0 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 108906-55:
(8*1)+(7*0)+(6*8)+(5*9)+(4*0)+(3*6)+(2*5)+(1*5)=134
134 % 10 = 4
So 108906-55-4 is a valid CAS Registry Number.