42428-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42428-63-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,2 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42428-63:
(7*4)+(6*2)+(5*4)+(4*2)+(3*8)+(2*6)+(1*3)=107
107 % 10 = 7
So 42428-63-7 is a valid CAS Registry Number.