5634-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5634-65-1 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, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5634-65:
(6*5)+(5*6)+(4*3)+(3*4)+(2*6)+(1*5)=101
101 % 10 = 1
So 5634-65-1 is a valid CAS Registry Number.