1223580-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1223580-90-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,3,5,8 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1223580-90:
(9*1)+(8*2)+(7*2)+(6*3)+(5*5)+(4*8)+(3*0)+(2*9)+(1*0)=132
132 % 10 = 2
So 1223580-90-2 is a valid CAS Registry Number.