190335-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190335-90-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,3,3 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 190335-90:
(8*1)+(7*9)+(6*0)+(5*3)+(4*3)+(3*5)+(2*9)+(1*0)=131
131 % 10 = 1
So 190335-90-1 is a valid CAS Registry Number.