349400-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 349400-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,4,0 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 349400-43:
(8*3)+(7*4)+(6*9)+(5*4)+(4*0)+(3*0)+(2*4)+(1*3)=137
137 % 10 = 7
So 349400-43-7 is a valid CAS Registry Number.