18338-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18338-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18338-81:
(7*1)+(6*8)+(5*3)+(4*3)+(3*8)+(2*8)+(1*1)=123
123 % 10 = 3
So 18338-81-3 is a valid CAS Registry Number.
InChI:InChI=1/C13H15NO8/c14-11(18)5-3-1-2-4-6(5)21-13-9(17)7(15)8(16)10(22-13)12(19)20/h1-4,7-10,13,15-17H,(H2,14,18)(H,19,20)/t7-,8-,9+,10-,13+/m0/s1
