342803-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 342803-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,8,0 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 342803-93:
(8*3)+(7*4)+(6*2)+(5*8)+(4*0)+(3*3)+(2*9)+(1*3)=134
134 % 10 = 4
So 342803-93-4 is a valid CAS Registry Number.