105996-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105996-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,9,9 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 105996-90:
(8*1)+(7*0)+(6*5)+(5*9)+(4*9)+(3*6)+(2*9)+(1*0)=155
155 % 10 = 5
So 105996-90-5 is a valid CAS Registry Number.