42768-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42768-92-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,6 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42768-92:
(7*4)+(6*2)+(5*7)+(4*6)+(3*8)+(2*9)+(1*2)=143
143 % 10 = 3
So 42768-92-3 is a valid CAS Registry Number.