Alizarin-5-sulfonic acid

Superiority:

The Alizarin-5-sulfonic acid, with the CAS registry number 6373-42-8, is also known as Alizarinsulfonicacid. It belongs to the product categories of Anthraquinones; Anthraquinonesulfonic Acids; Hydroxyanthraquinones. This chemical's molecular formula is C₁₄H₈O₇S and molecular weight is 320.27. What's more, its systematic name is 5, 6-Dihydroxy-9, 10-dioxo-9, 10-dihydroanthracene-1-sulfonic acid. In addition, it must be stored in airtight containers and placed in a dry, cool place. Meanwhile, it should avoid contact with light.

Physical properties about Alizarin-5-sulfonic acid are: (1)ACD/LogP: 2.35; (2)# of Rule of 5 Violations: 0; (3)ACD/BCF (pH 5.5): 1; (4)ACD/BCF (pH 7.4): 1; (5)ACD/KOC (pH 5.5): 1; (6)ACD/KOC (pH 7.4): 1; (7)#H bond acceptors: 7; (8)#H bond donors: 3; (9)#Freely Rotating Bonds: 3; (10)Polar Surface Area: 137.35 Å²; (11)Index of Refraction: 1.743; (12)Molar Refractivity: 72.3 cm³; (13)Molar Volume: 178.7 cm³; (14)Polarizability: 28.66×10^-24 cm³; (15)Surface Tension: 96.5 dyne/cm; (16)Density: 1.792 g/cm³.

When you are using this chemical, please be cautious about it as the following: 
As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure: 
(1) SMILES: OS(=O)(=O)c3cccc2c3C(=O)c1ccc(O)c(O)c1C2=O
(2) InChI: InChI=1/C14H8O7S/c15-8-5-4-7-11(14(8)18)13(17)6-2-1-3-9(22(19,20)21)10(6)12(7)16/h1-5,15,18H,(H,19,20,21)
(3) InChIKey: ZJURSVKCUMCGMF-UHFFFAOYAC