Coumarin 7

Catalog Number

27425-55-4

CAS

27425-55-4

IUPAC Name

3-(1H-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one

Synonyms

3-(1H-benzimidazol-2-yl)-7-(diethylamino)-2H-1-benzopyran-2-one; Coumarin 535; 3-(2-Benzimidazolyl)-7-(diethylamino)coumarin

Application

Coumarins are used as fluorescent dyes and also as laser dyes. Fluorescent dyes not only absorb light; they also emit light to produce very bright colors. They are used to dye textile fibers, plastics, inks, and to make pigments for paints and lacquers. As a disperse dye, 40 Yellow is used to dye polyester fibers.

Molecular Weight

333.39

Molecular Formula

C20H19N3O2

Product Information

Purity

>98.0%(T)(HPLC)

MDL

MFCD00051348

Physical State

Solid

Appearance

White to Light yellow powder to crystal

Storage

Store under inert gas

Melting Point

242 °C

Safety Information

Signal Word

Warning

Precautionary Statement

P264 : Wash skin thoroughly after handling.P280 : Wear protective gloves/ eye protection/ face protection.P337 + P313 : If eye irritation persists: Get medical advice/ attention.P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P302 + P352 : IF ON SKIN: Wash with plenty of soap and water.P332 + P313 : If skin irritation occurs: Get medical advice/ attention.P362 : Take off contaminated clothing and wash before reuse.

Hazard Statements

H315 : Causes skin irritation.H319 : Causes serious eye irritation.

Canonical SMILES

CCN(CC)C1=CC2=C(C=C1)C=C(C(=O)O2)C3=NC4=CC=CC=C4N3

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)

InChI Key

GOLORTLGFDVFDW-UHFFFAOYSA-N