Benzenesulfonic acid,2-amino-5-[(4-amino-3-sulfophenyl)(4-imino-3-sulfo-2,5-cyclohexadien-1-ylidene)methyl]-3-methyl-,sodium salt (1:2) (3244-88-0)

The IUPAC name of Fuchsin Acid is disodium 3-[(4-amino-3-sulfonatophenyl)-(4-amino-3-sulfophenyl)methylidene]-6-imino-5-methylcyclohexa-1,4-diene-1-sulfonate. With the CAS registry number 3244-88-0, it is also named as Acid magenta; C.I. Acid Violet 19. The classification code is Mutation data. It is dark green crystalline powder which is slightly soluble in ethanol. Fuchsin Acid is stable and incompatible with strong oxidizing agents. In addition, it should be stored in a cool, dry, well-ventilated area away from incompatible substances. Furthermore, this chemical is used as an acidic magenta dye, biological stain and PH indicator.

The other characteristics of this product can be summarized as: (1)#H bond acceptors: 12; (2)#H bond donors: 8; (3)#Freely Rotating Bonds: 7; (4)Rotatable Bond Count: 3; (5)Tautomer Count: 12; (6)Exact Mass: 584.992231; (7)MonoIsotopic Mass: 584.992231; (8)Topological Polar Surface Area: 270; (9)Heavy Atom Count: 37; (10)Undefined Bond StereoCenter Count: 1; (11)Covalently-Bonded Unit Count: 3.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing. 

People can use the following data to convert to the molecule structure.
1. SMILES: [Na+].[Na+].O=S([O-])(=O)C\1=C\C(\C=C/C/1=[NH2+])=C(\c2ccc(N)c(c2)S([O-])(=O)=O)c3cc(c(N)c(C)c3)S([O-])(=O)=O;
2. InChI: InChI=1/C20H19N3O9S3.2Na/c1-10-6-13(9-18(20(10)23)35(30,31)32)19(11-2-4-14(21)16(7-11)33(24,25)26)12-3-5-15(22)17(8-12)34(27,28)29;;/h2-9,21H,22-23H2,1H3,(H,24,25,26)(H,27,28,29)(H,30,31,32);;/q;2*+1/p-2/b19-11-,21-14?;;.