Molecular Structure of Triammonium 4-sulfophthalate (CAS NO.22411-24-1):

Systematic Name: Triammonium 4-sulfonatobenzene-1,2-dicarboxylate 
Molecular Formula: C₈H₁₅N₃O₇S
Molecular Weight: 297.29
Melting Point: >300 °C(lit.)
H bond acceptors: 7
H bond donors: 3
Freely Rotating Bonds: 3 
Nominal Mass: 297
Average Mass: 297.2856
Monoisotopic Mass: 297.06307 
Product Categories: S; Stains and Dyes; Stains & Dyes, A to
SMILES: O=S([O-])(=O)c1cc(c(C([O-])=O)cc1)C([O-])=O.[NH4+].[NH4+].[NH4+]
InChI: InChI=1/C8H6O7S.3H3N/c9-7(10)5-2-1-4(16(13,14)15)3-6(5)8(11)12;;;/h1-3H,(H,9,10)(H,11,12)(H,13,14,15);3*1H3
InChIKey: RMPQIFXEQFYSEM-UHFFFAOYAK

Safety Information of Triammonium 4-sulfophthalate (CAS NO.22411-24-1):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.

 Triammonium 4-sulfophthalate (CAS NO.22411-24-1), its Synonyms are 1,2-Benzenedicarboxylicacid, 4-sulfo-, triammonium salt (9CI) ; Phthalic acid, 4-sulfo-, triammoniumsalt (8CI) ; 1,2-Benzenedicarboxylicacid, 4-sulfo-, ammonium salt (1:3) ; 4-Sulfophthalic acid triammonium salt ; 4-Sulfophthalic acid, triammonium salt, tech .