42938-52-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42938-52-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,3 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42938-52:
(7*4)+(6*2)+(5*9)+(4*3)+(3*8)+(2*5)+(1*2)=133
133 % 10 = 3
So 42938-52-3 is a valid CAS Registry Number.