1219000-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1219000-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,0,0 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1219000-90:
(9*1)+(8*2)+(7*1)+(6*9)+(5*0)+(4*0)+(3*0)+(2*9)+(1*0)=104
104 % 10 = 4
So 1219000-90-4 is a valid CAS Registry Number.