340310-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340310-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,3,1 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 340310-74:
(8*3)+(7*4)+(6*0)+(5*3)+(4*1)+(3*0)+(2*7)+(1*4)=89
89 % 10 = 9
So 340310-74-9 is a valid CAS Registry Number.