1380740-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1380740-41-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,7,4 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1380740-41:
(9*1)+(8*3)+(7*8)+(6*0)+(5*7)+(4*4)+(3*0)+(2*4)+(1*1)=149
149 % 10 = 9
So 1380740-41-9 is a valid CAS Registry Number.