342400-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 342400-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,4,0 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 342400-77:
(8*3)+(7*4)+(6*2)+(5*4)+(4*0)+(3*0)+(2*7)+(1*7)=105
105 % 10 = 5
So 342400-77-5 is a valid CAS Registry Number.