7407-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7407-92-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,0 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7407-92:
(6*7)+(5*4)+(4*0)+(3*7)+(2*9)+(1*2)=103
103 % 10 = 3
So 7407-92-3 is a valid CAS Registry Number.