The Benzenesulfonic acid,3-amino-4-hydroxy-, with the CAS registry number 98-37-3 and EINECS registry number 202-662-8, has the systematic name of 3-amino-4-hydroxybenzenesulfonic acid. It is a kind of brown crystals, and belongs to the proudct category of Intermediates of Dyes and Pigments. And the molecular formula of this chemical is C₆H₇NO₄S.

The physical properties of Benzenesulfonic acid,3-amino-4-hydroxy- are as following: (1)ACD/LogP: -2.96; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -6.35; (4)ACD/LogD (pH 7.4): -6.5; (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: 1.671; (14)Molar Refractivity: 42.24 cm³; (15)Molar Volume: 112.9 cm³; (16)Polarizability: 16.74×10^-24cm³; (17)Surface Tension: 85.5 dyne/cm; (18)Density: 1.675 g/cm³.

You should be cautious while dealing with this chemical. It may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).
 
You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(O)c1ccc(O)c(N)c1
(2)InChI: InChI=1/C6H7NO4S/c7-5-3-4(12(9,10)11)1-2-6(5)8/h1-3,8H,7H2,(H,9,10,11)
(3)InChIKey: ULUIMLJNTCECJU-UHFFFAOYAT