155346-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155346-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,3,4 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155346-81:
(8*1)+(7*5)+(6*5)+(5*3)+(4*4)+(3*6)+(2*8)+(1*1)=139
139 % 10 = 9
So 155346-81-9 is a valid CAS Registry Number.