Solvent Red 49 Chemical Properties

Boiling point:

553.14°C (rough estimate)

Density 

1.1536 (rough estimate)

refractive index 

1.5800 (estimate)

form 

Fine Crystalline Powder

pka

5.80±0.20(Predicted)

Colour Index 

45170:1

color 

Lilac

CAS DataBase Reference

509-34-2(CAS DataBase Reference)

EPA Substance Registry System

C.I. Solvent Red 49 (509-34-2)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-37/38-41

Safety Statements 

26-36/37

WGK Germany 

3

HS Code 

32041300

MSDS

• Language:English Provider:3',6'-Bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich

Solvent Red 49 Usage And Synthesis

Chemical Properties

LILAC FINE CRYSTALLINE POWDER

Purification Methods

Major impurities are partially dealkylated compounds not removed by recrystallisation. Purify the dye by chromatography, using ethyl acetate/isopropanol/ammonia (conc)(9:7:4, RF 0.75 on Kieselgel G). It has also been crystallised from a concentrated solution in MeOH by slow addition of dry diethyl ether; or from EtOH containing a drop of conc HCl by slow addition of ten volumes of dry diethyl ether. The solid is washed with ether and air dried. The dried material has also been extracted with *benzene to remove oil-soluble material prior to recrystallisation. Store it in the dark. [Beilstein 18 II 486, 18 III/IV 8246, 19/8 V 669.]

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