42926-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42926-98-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,2 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42926-98:
(7*4)+(6*2)+(5*9)+(4*2)+(3*6)+(2*9)+(1*8)=137
137 % 10 = 7
So 42926-98-7 is a valid CAS Registry Number.