7633-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7633-23-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,3 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7633-23:
(6*7)+(5*6)+(4*3)+(3*3)+(2*2)+(1*3)=100
100 % 10 = 0
So 7633-23-0 is a valid CAS Registry Number.