The 2-Naphthalenesulfonicacid, 8-amino-4-hydroxy-, with the CAS registry number of 489-78-1, is also known as 1-Amino-5-naphthol-7-sulfonic acid. It belongs to the product category of Intermediates of Dyes and Pigments. Its EINECS registry number is 207-700-7. Its molecular formula is C₁₀H₉NO₄S and molecular weight is 239.25. What's more, its IUPAC name is 8-Amino-4-hydroxynaphthalene-2-sulfonic acid. In addition, it must be stored in airtight containers and placed in a dry, cool place. Meanwhile, keep it away from oxidant.

Physical properties about the 2-Naphthalenesulfonicacid, 8-amino-4-hydroxy- are: (1)ACD/LogP: -1.46; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -4.93; (4)ACD/LogD (pH 7.4): -4.97; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 5; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 64.22 Å²; (13)Index of Refraction: 1.748; (14)Molar Refractivity: 59.8 cm³; (15)Molar Volume: 147 cm³; (16)Surface Tension: 86.4 dyne/cm; (17)Density: 1.627 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. If contact with eyes accidently, rinse immediately with plenty of water and seek medical advice. In addition, during using it, wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1) SMILES: O=S(=O)(O)c2cc1c(cccc1c(O)c2)N
(2) InChI: InChI=1/C10H9NO4S/c11-9-3-1-2-7-8(9)4-6(5-10(7)12)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)
(3) InChIKey: GGZZISOUXJHYOY-UHFFFAOYAG