42345-27-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42345-27-7 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, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42345-27:
(7*4)+(6*2)+(5*3)+(4*4)+(3*5)+(2*2)+(1*7)=97
97 % 10 = 7
So 42345-27-7 is a valid CAS Registry Number.