342902-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 342902-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,9,0 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 342902-80:
(8*3)+(7*4)+(6*2)+(5*9)+(4*0)+(3*2)+(2*8)+(1*0)=131
131 % 10 = 1
So 342902-80-1 is a valid CAS Registry Number.