42345-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42345-65-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,3,4 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42345-65:
(7*4)+(6*2)+(5*3)+(4*4)+(3*5)+(2*6)+(1*5)=103
103 % 10 = 3
So 42345-65-3 is a valid CAS Registry Number.