1380434-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1380434-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,4,3 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1380434-56:
(9*1)+(8*3)+(7*8)+(6*0)+(5*4)+(4*3)+(3*4)+(2*5)+(1*6)=149
149 % 10 = 9
So 1380434-56-9 is a valid CAS Registry Number.