1239339-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239339-90-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,3,3 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1239339-90:
(9*1)+(8*2)+(7*3)+(6*9)+(5*3)+(4*3)+(3*9)+(2*9)+(1*0)=172
172 % 10 = 2
So 1239339-90-2 is a valid CAS Registry Number.