| Identification | More | [Name]
COUMARIN 7 | [CAS]
27425-55-4 | [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
CI 551200
CI DISPERSE YELLOW 82
CI SOLVENT YELLOW 145
CI SOLVENT YELLOW 185
COUMARIN, 3-(2-BENZIMIDAZOLYL)-7-(DIETHYLAMINO)-
COUMARIN 535
COUMARIN 7
DISPERSE YELLOW 82
DISPERSE YELLOW 8GFF
K 7
KAYASET YELLOW SF-G
KEYSTONE FLUORESCENT YELLOW 10G
NSC 303254
ORACET YELLOW 8GF
POLYCRON BRILLIANT YELLOW 10GF | [EINECS(EC#)]
248-451-4 | [Molecular Formula]
C20H19N3O2 | [MDL Number]
MFCD00051348 | [Molecular Weight]
333.38 | [MOL File]
27425-55-4.mol |
| Chemical Properties | Back Directory | [Appearance]
bright yellow powder | [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 | [solubility ]
DMF: 1 mg/ml; DMSO: 1 mg/ml; Ethanol: insol; PBS (pH 7.2): insol | [form ]
Powder | [pka]
10.83±0.10(Predicted) | [color ]
Bright yellow | [λmax]
438 nm | [Detection Methods]
HPLC | [LogP]
3.68 | [CAS DataBase Reference]
27425-55-4(CAS DataBase Reference) | [EPA Substance Registry System]
27425-55-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S38:In case of insufficient ventilation, wear suitable respiratory equipment .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
3
| [HS Code ]
29332900 |
| Hazard Information | Back Directory | [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]
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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BRILLIANT YELLOW
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SHADE
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BLUISH
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HEAT RESISTANCE
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260 °C min
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LIGHT FASTNESS
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5-6
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ACID RESISTANCE
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4
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ALKALI RESISTANCE
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5
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WATER RESISTANCE
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5
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DENSITY
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1.20 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
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WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
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WEIGHT METAL TOTAL
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50ppm max
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