This chemical is called Benzoic acid, 2-amino-5-sulfo-, and its CAS registry number is 3577-63-7. With the molecular formula of C₇H₇NO₅S, its product category is Intermediates of Dyes and Pigments. It's soluble in hot water [Hawley], unstable to prolonged exposure to air.

Other characteristics of the Benzoic acid, 2-amino-5-sulfo- can be summarised as followings: (1)ACD/LogP: 0.16; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -4.16; (4)ACD/LogD (pH 7.4): -4.34; (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: 6; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 81.29 Å²; (13)Index of Refraction: 1.661; (14)Molar Refractivity: 46.99 cm³; (15)Molar Volume: 127 cm³; (16)Polarizability: 18.63×10^-24cm³.

You can still convert the following datas into molecular structure:
1.SMILES: O=C(O)c1cc(ccc1N)S(=O)(=O)O
2.InChI: InChI=1/C7H7NO5S/c8-6-2-1-4(14(11,12)13)3-5(6)7(9)10/h1-3H,8H2,(H,9,10)(H,11,12,13)
3.InChIKey: MJNYPLCGWXFYPD-UHFFFAOYAB