344355-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344355-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,3,5 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 344355-89:
(8*3)+(7*4)+(6*4)+(5*3)+(4*5)+(3*5)+(2*8)+(1*9)=151
151 % 10 = 1
So 344355-89-1 is a valid CAS Registry Number.