509-34-2

Name	Solvent Red 49
CAS	509-34-2
EINECS(EC#)	208-096-8
Molecular Formula	C28H30N2O3
MDL Number	MFCD00066967
Molecular Weight	442.55
MOL File	509-34-2.mol

Synonyms

CI 45170 CI 45170.1 CI 45170:1 D AND C RED NO 19 D AND C RED NO 37 RHODAMINE B BASE RHODAMINE B BASE, ALCOHOL SOLUBLE RHODAMINE B STEARATE SOLVENT RED 49 9’-(9H)xanthen]-3-one,3’,6’-bis(diethylamino)-Spiro[isobenzofuran-1(3H) 9’-[9h]xanthen]-3-one,3’,6’-bis(diethylamino)-spiro[isobenzofuran-1(3h abcolrhodaminebbase 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 3',6'-bis(diethylamino)-Spiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one Solvent red 49 (C.I. 45170:1)

Chemical Properties

Appearance	LILAC FINE CRYSTALLINE POWDER
Boiling point	553.14°C (rough estimate)
density	1.1536 (rough estimate)
vapor pressure	0Pa at 25℃
refractive index	1.5800 (estimate)
Colour Index	45170:1
form	Fine Crystalline Powder
pka	5.80±0.20(Predicted)
color	Lilac
Water Solubility	4.83g/L at 30℃
LogP	3.649 at 25℃
CAS DataBase Reference	509-34-2(CAS DataBase Reference)
EPA Substance Registry System	509-34-2(EPA Substance)

Safety Data

Hazard Codes	Xn
Risk Statements	R22:Harmful if swallowed. R37/38:Irritating to respiratory system and skin . R41:Risk of serious damage to eyes. less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37:Wear suitable protective clothing and gloves . less more
WGK Germany	3
HS Code	32041300

Raw materials And Preparation Products

Hazard Information

Chemical Properties

LILAC FINE CRYSTALLINE POWDER

Uses

Rhodamine B base is a fluorescent biological staining dye. Rhodamine B base is also used as a laser dye, tunable around 610 nm with the fluorescence yield being temperature dependent. Dyes and metabolites, Environmental Testing

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	PINK POWDER
SHADE	BLUISH
HEAT RESISTANCE	180 °C min
LIGHT FASTNESS	4-5
ACID RESISTANCE	4
ALKALI RESISTANCE	5
WATER RESISTANCE	5
DENSITY	1.30 g/cm ³
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %

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.]

Material Safety Data Sheet(MSDS)

Spectrum Detail

Well-known Reagent Company Product Information

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