1380544-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1380544-78-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,5,4 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1380544-78:
(9*1)+(8*3)+(7*8)+(6*0)+(5*5)+(4*4)+(3*4)+(2*7)+(1*8)=164
164 % 10 = 4
So 1380544-78-4 is a valid CAS Registry Number.