34203-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34203-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,2,0 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 34203-49:
(7*3)+(6*4)+(5*2)+(4*0)+(3*3)+(2*4)+(1*9)=81
81 % 10 = 1
So 34203-49-1 is a valid CAS Registry Number.