The IUPAC name of Solvent Red 49 is 3',6'-bis(diethylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one. With the CAS registry number 509-34-2, it is also named as Aizen Rhodamine B Base; Fluoran, 3',6'-bis(diethylamino)- (8CI). The product's categories are organics and solvent dyestuff. It is lilac fine crystalline powder which is soluble in water and ethanol, slightly soluble in acetone, and easily soluble in glycol ether. In addition, this chemical is used for coloring of oils, candles, rubber, plastic and lacquer.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 6.75; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 6.26; (4)ACD/LogD (pH 7.4): 6.74; (5)ACD/BCF (pH 5.5): 25657.88; (6)ACD/BCF (pH 7.4): 77874.13; (7)ACD/KOC (pH 5.5): 36109.74; (8)ACD/KOC (pH 7.4): 109596.54; (9)#H bond acceptors: 5; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 6; (12)Index of Refraction: 1.652; (13)Molar Refractivity: 129.73 cm³; (14)Molar Volume: 354.5 cm³; (15)Polarizability: 51.42×10^-24 cm³; (16)Surface Tension: 58 dyne/cm; (17)Enthalpy of Vaporization: 94.13 kJ/mol; (18)Vapour Pressure: 3.9E-16 mmHg at 25°C; (19)Rotatable Bond Count: 6; (20)Exact Mass: 442.225643; (21)MonoIsotopic Mass: 442.225643; (22)Topological Polar Surface Area: 42; (23)Heavy Atom Count: 33.

Preparation of Solvent Red 49: Using 2-hydroxy-N, N-diethyl aniline and phthalic anhydride as raw materials. Condensating this two raw materials in the presence of sulfuric acid, and by alkali soluble, acid soluble to handle the product. After filtration and drying, we can get the product.

When you are using this chemical, please be cautious about it as the following:
It is harmful if swallowed. And it is irritating to 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 and gloves.

People can use the following data to convert to the molecule structure. 
1. SMILES: O=C2OC4(c1ccccc12)c5ccc(N(CC)CC)cc5Oc3cc(N(CC)CC)ccc34;
2. InChI: InChI=1/C28H30N2O3/c1-5-29(6-2)19-13-15-23-25(17-19)32-26-18-20(30(7-3)8-4)14-16-24(26)28(23)22-12-10-9-11-21(22)27(31)33-28/h9-18H,5-8H2,1-4H3.