Product Name

  • Name

    COUMARIN 7

  • EINECS 248-451-4
  • CAS No. 27425-55-4
  • Article Data11
  • CAS DataBase
  • Density 1.303 g/cm3
  • Solubility
  • Melting Point 234-237 °C
  • Formula C20H19N3O2
  • Boiling Point 602.273 °C at 760 mmHg
  • Molecular Weight 333.39
  • Flash Point 318.044 °C
  • Transport Information
  • Appearance bright yellow powder
  • Safety 26-38-37/39
  • Risk Codes 36/37/38-20/21/22
  • Molecular Structure Molecular Structure of 27425-55-4 (COUMARIN 7)
  • Hazard Symbols IrritantXi,HarmfulXn
  • Synonyms 3-(2-Benzimidazolyl)-7-(diethylamino)coumarin;3-(Benzimidazol-2-yl)-7-diethylamino-2H-benzopyran-2-one;C.I.Disperse Yellow 82;C.I. Solvent Yellow 171;Coumarin 535;Day-GloSavannah Yellow;Disperse Yellow 8GFF;Fluorescent Yellow9GF;K 7;Kayaset Yellow SF-G;NSC 303254;Polycron Brilliant Yellow 10GF;Savannah Yellow;Solvent Yellow 145;Solvent Yellow 185;Terasil Brilliant Flavine 8GFF;Yellow 8GFF;
  • PSA 62.13000
  • LogP 4.18250

Coumarin 7 Specification

The Coumarin 7, with the CAS registry number 27425-55-4, is also known as 3-(2-Benzimidazolyl)-7-(diethylamino)coumarin. It belongs to the product category of Solvent Dyestuff. Its EINECS number is 248-451-4. This chemical's molecular formula is C20H19N3O2 and molecular weight is 333.38. What's more, its systematic name is 3-(1H-Benzimidazol-2-yl)-7-(diethylamino)-2H-chromen-2-one. This chemical should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides and strong acids. It is used for the dyeing of textile goods and the coloring of paper. It also can be used for a variety of pre-colored resins and fiber spinning.

Physical properties of Coumarin 7 are: (1)ACD/LogP: 4.436; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 4.31; (4)ACD/LogD (pH 7.4): 4.43; (5)ACD/BCF (pH 5.5): 1042.08; (6)ACD/BCF (pH 7.4): 1378.70; (7)ACD/KOC (pH 5.5): 4642.26; (8)ACD/KOC (pH 7.4): 6141.81; (9)#H bond acceptors: 5; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 58.22 Å2; (13)Index of Refraction: 1.693; (14)Molar Refractivity: 98.153 cm3; (15)Molar Volume: 255.94 cm3; (16)Polarizability: 38.911×10-24cm3; (17)Surface Tension: 63.5 dyne/cm; (18)Density: 1.303 g/cm3; (19)Flash Point: 318.044 °C; (20)Enthalpy of Vaporization: 89.607 kJ/mol; (21)Boiling Point: 602.273 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. It is harmful by inhalation, in contact with skin and if swallowed. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C/2Oc1cc(ccc1\C=C\2c3nc4ccccc4n3)N(CC)CC
(2)Std. InChI: InChI=1S/C20H19N3O2/c1-3-23(4-2)14-10-9-13-11-15(20(24)25-18(13)12-14)19-21-16-7-5-6-8-17(16)22-19/h5-12H,3-4H2,1-2H3,(H,21,22)
(3)Std. InChIKey: GOLORTLGFDVFDW-UHFFFAOYSA-N  

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