1204142-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1204142-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,4,1,4 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1204142-90:
(9*1)+(8*2)+(7*0)+(6*4)+(5*1)+(4*4)+(3*2)+(2*9)+(1*0)=94
94 % 10 = 4
So 1204142-90-4 is a valid CAS Registry Number.