7-Diethylamino-4-methylcoumarin Chemical Properties

Melting point:

72-75 °C (lit.)

Boiling point:

240 °C / 6.5mmHg

Density 

1.122

vapor pressure 

0-0.003Pa at 20-25℃

refractive index 

1.5300 (estimate)

Flash point:

152°C

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly), Methanol (Slightly)

pka

3.51±0.20(Predicted)

form 

Crystalline Powder

color 

Light beige to light purple

Water Solubility 

slightly soluble

BRN 

193303

Stability:

Stable. Incompatible with strong oxidizing agents.

InChIKey

AFYCEAFSNDLKSX-UHFFFAOYSA-N

LogP

2.523-2.8 at 23-25℃

CAS DataBase Reference

91-44-1(CAS DataBase Reference)

NIST Chemistry Reference

Coumarin, 7-(diethylamino)-4-methyl-(91-44-1)

EPA Substance Registry System

7-Diethylamino-4-methylcoumarin (91-44-1)

Safety Information

Hazard Codes 

Xn

Risk Statements 

36/37/38-20/21

Safety Statements 

37/39-26

WGK Germany 

2

RTECS 

GN6370000

TSCA 

Yes

HS Code 

29322090

Hazardous Substances Data

91-44-1(Hazardous Substances Data)

Toxicity

LD50 oral in rat: 5gm/kg

MSDS

• Language:English Provider:4-Methyl-7-(diethylamino)coumarin
• Language:English Provider:ACROS
• Language:English Provider:ALFA

7-Diethylamino-4-methylcoumarin Usage And Synthesis

Chemical Properties

light tan powder

Uses

Optical bleach in textile industry, in coatings for paper, labels, book covers, etc.; to lighten plastics, resins, varnishes, and lacquers; invisible marking agent.

Uses

7-(Diethylamino)-4-methylcoumarin, is potentially useful as a laser dye.

Definition

ChEBI: Coumarin 460 is a member of 7-aminocoumarins. It has a role as a fluorochrome.

General Description

Light tan grains. Gives bright blue-white fluorescence in very dilute solutions.

Reactivity Profile

7-Diethylamino-4-methylcoumarin is a lactone (behaves as an ester) and an amine. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.

Flammability and Explosibility

Not classified

7-Diethylamino-4-methylcoumarin(91-44-1)Related Product Information

• Acetonitrile
• Tetrahydro-4H-pyran-4-one
• Methyl acetate
• Fluorescent brightener 85
• Kresoxim-methyl
• Methanol
• Coumarin
• Lithium bis(trimethylsilyl)amide
• Tris(hydroxymethyl)aminomethane
• SCOPARONE
• FLUORESCENT BRIGHTENER 28
• Amino tris(methylene phosphonic acid)
• 2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
• Coumarin 120
• Basic Violet 1
• C.I. 482200
• 4-Methylcumarin
• 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole