90-07-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90-07-3 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90-07:
(4*9)+(3*0)+(2*0)+(1*7)=43
43 % 10 = 3
So 90-07-3 is a valid CAS Registry Number.