1381944-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1381944-81-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,1,9,4 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1381944-81:
(9*1)+(8*3)+(7*8)+(6*1)+(5*9)+(4*4)+(3*4)+(2*8)+(1*1)=185
185 % 10 = 5
So 1381944-81-5 is a valid CAS Registry Number.