42052-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42052-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,5 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42052-45:
(7*4)+(6*2)+(5*0)+(4*5)+(3*2)+(2*4)+(1*5)=79
79 % 10 = 9
So 42052-45-9 is a valid CAS Registry Number.