340807-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340807-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,8,0 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 340807-69:
(8*3)+(7*4)+(6*0)+(5*8)+(4*0)+(3*7)+(2*6)+(1*9)=134
134 % 10 = 4
So 340807-69-4 is a valid CAS Registry Number.