Product

COUMARIN 7

CAS No.：27425-55-4

Other grades of this product :

COUMARIN 7 Basic information

Product Name:	COUMARIN 7
Synonyms:	3-(1H-Benzimidazol-2-yl)-7-(diethylamino)-2-benzopyrone;3-(1H-BENZIMIDAZOL-2-YL)-7-(DIETHYLAMINO)-2H-CHROMEN-2-ONE;3-(1H-BENZOIMIDAZOL-2-YL)-7-DIETHYLAMINO-CHROMEN-2-ONE;3-(2-BENZIMIDAZOLYL)-7-(DIETHYLAMINO)COUMARIN;3-(2'-BENZIMIDAZOLYL)-7-N,N-DIETHYL-AMINOCOUMARIN;SETARON BRILLIANT FLAVINE 8GFF;SUMIKARON BRILLIANT FLAVINE S 10G;TERASIL BRILLIANT FLAVINE 8GFF
CAS:	27425-55-4
MF:	C20H19N3O2
MW:	333.38
EINECS:	248-451-4
Product Categories:	Solvent Dyestuff
Mol File:	27425-55-4.mol

COUMARIN 7 Chemical Properties

Melting point	234-237 °C(lit.)
Boiling point	470.35°C (rough estimate)
density	1.2071 (rough estimate)
refractive index	1.6200 (estimate)
storage temp.	-20°C
pka	10.83±0.10(Predicted)
form	Powder
color	Bright yellow
LogP	3.68
CAS DataBase Reference	27425-55-4(CAS DataBase Reference)
EPA Substance Registry System	2H-1-Benzopyran-2-one, 3-(1H-benzimidazol-2-yl)-7-(diethylamino)- (27425-55-4)

Safety Information

Hazard Codes	Xi,Xn
Risk Statements	36/37/38-20/21/22
Safety Statements	26-38-37/39
WGK Germany	3
HS Code	29332900

MSDS Information

Provider	Language
SigmaAldrich	English
ACROS	English

COUMARIN 7 Usage And Synthesis

Chemical Properties

bright yellow powder

Uses

Coumarin is also known as benzoαpyrone. Coumarin 7 is a laser dye that is usually found in the nature. Dyes and metabolites.

Flammability and Explosibility

Nonflammable

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	BRILLIANT YELLOW
SHADE	BLUISH
HEAT RESISTANCE	260 °C min
LIGHT FASTNESS	5-6
ACID RESISTANCE	4
ALKALI RESISTANCE	5
WATER RESISTANCE	5
DENSITY	1.20 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 %
WEIGHT METAL TOTAL	50ppm max

COUMARIN 7 Preparation Products And Raw materials

Raw materials

N,N-Dimethylformamide-->Phosphorus oxychloride-->Piperidine-->Sodium acetate trihydrate-->Salicylaldehyde-->3-Diethylaminophenol-->Coumarin-->4-(Diethylamino)salicylaldehyde-->2-(Cyanomethyl)benzimidazole-->2-Benzothiazoleacetic acid-->2-(Cyanomethyl)benzimidazole-->Coumarin-->4-(Diethylamino)salicylaldehyde

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