5634-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5634-25-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,3 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5634-25:
(6*5)+(5*6)+(4*3)+(3*4)+(2*2)+(1*5)=93
93 % 10 = 3
So 5634-25-3 is a valid CAS Registry Number.