492-18-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 492-18-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 492-18:
(5*4)+(4*9)+(3*2)+(2*1)+(1*8)=72
72 % 10 = 2
So 492-18-2 is a valid CAS Registry Number.
InChI:InChI=1/C13H16NO5.Hg.Na.H2O/c1-9(18-2)7-14-13(17)10-5-3-4-6-11(10)19-8-12(15)16;;;/h3-6,9H,1,7-8H2,2H3,(H,14,17)(H,15,16);;;1H2/q;2*+1;/p-2/rC13H17HgNO6.Na/c1-20-9(6-14-19)7-15-13(18)10-4-2-3-5-11(10)21-8-12(16)17;/h2-5,9,19H,6-8H2,1H3,(H,15,18)(H,16,17);/q;+1/p-1