2153-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2153-65-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2153-65:
(6*2)+(5*1)+(4*5)+(3*3)+(2*6)+(1*5)=63
63 % 10 = 3
So 2153-65-3 is a valid CAS Registry Number.