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Solvent Red 49

Basic information Safety Supplier Related

Solvent Red 49 Basic information

Product Name:
Solvent Red 49
Synonyms:
  • D AND C RED NO 19
  • D AND C RED NO 37
  • 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one
  • RHODAMINE B BASE 99%
  • Oil Pink B
  • Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 3,6-bis(diethylamino)-
  • SOLVENT RED BN
  • 3',6'-bis(diethylamino)- Spiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one
CAS:
509-34-2
MF:
C28H30N2O3
MW:
442.55
EINECS:
208-096-8
Product Categories:
  • Solvent Dyestuff
  • Organics
Mol File:
509-34-2.mol
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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)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22-37/38-41
Safety Statements 
26-36/37
WGK Germany 
3
HS Code 
32041300

MSDS

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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.]

Solvent Red 49 Preparation Products And Raw materials

Raw materials

Solvent Red 49Supplier

J & K SCIENTIFIC LTD.
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