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CAS No.: | 91-44-1 |
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Name: | 7-Diethylamino-4-methylcoumarin |
Article Data: | 12 |
Molecular Structure: | |
Formula: | C14H17NO2 |
Molecular Weight: | 231.294 |
Synonyms: | Coumarin,7-(diethylamino)-4-methyl- (6CI,7CI,8CI);4-Methyl-7-(diethylamino)coumarin;7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one;7-(Diethylamino)-4-methylcoumarin;Aclarat 8678;Blancol WNS;BlancophorAW;Blancophor FFG;Blankophor SOL;C 47;C 47 (coumarin derivative);C.I.551100;C.I. Fluorescent Brightener 140;C.I. Fluorescent Brightener 52;Calcofluor White RW;Calcofluor White SD;Coumarin 47;DEMC;Fluorescent Brightener 140;Fluorescent Brightener 52;HR 1;UvitexWGS;Whitefluor B;Whitex WS;Hiltamine Arctic White SOL;Leucophor WS;Leukophor WS;NSC61830;Neo-Super HR 1;Rylux VPA-T;Tinopal SWN; |
EINECS: | 202-068-9 |
Density: | 1.122 g/cm3 |
Melting Point: | 72-75 °C |
Boiling Point: | 391.7 °C at 760 mmHg |
Flash Point: | 152 °C |
Solubility: | slightly soluble in water |
Appearance: | light tan powder |
Hazard Symbols: | Xn |
Risk Codes: | 36/37/38-20/21 |
Safety: | 37/39-26 |
PSA: | 33.45000 |
LogP: | 2.94760 |
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IUPAC Name: 7-(Diethylamino)-4-methylchromen-2-one
Synonyms of 7-Diethylamino-4-methylcoumarin (CAS NO.91-44-1): 2H-1-Benzopyran-2-one, 7-(diethylamino)-4-methyl- ; 4-Methyl-7-diethylaminocoumarin ; 7-(Diethylamino)-4-methyl-2H-1-benzopyran-2-one ; 7-Diethylamino-4-methylcoumarin ; Diethylaminomethylcoumarin Blancophor AW ; Coumarin, 7-(diethylamino)-4-methyl-
CAS NO: 91-44-1
Molecular Formula: C14H17NO2
Molecular Weight : 231.2903
Molecular Structure:
EINECS: 202-068-9
H bond acceptors: 3
H bond donors: 0
Freely Rotating Bonds: 3
Polar Surface Area: 29.54 Å2
Index of Refraction: 1.574
Molar Refractivity: 68.04 cm3
Molar Volume: 206 cm3
Surface Tension: 42.6 dyne/cm
Density: 1.122 g/cm3
Flash Point: 152 °C
Enthalpy of Vaporization: 64.13 kJ/mol
Boiling Point: 391.7 °C at 760 mmHg
Vapour Pressure: 2.43E-06 mmHg at 25°C
Melting Point: 72-75 °C
Appearance: 7-Diethylamino-4-methylcoumarin (CAS NO.91-44-1) is light tan powder.
Water Solubility: slightly soluble
Stability: Stable. Incompatible with strong oxidizing agents.
7-Diethylamino-4-methylcoumarin (CAS NO.91-44-1) is applied to whitening, brightening of wool, silk, nylon and other fibers and fur ,and also suitable for plastic whitening and brightening.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | intravenous | 180mg/kg (180mg/kg) | U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#03230, | |
mouse | LD50 | oral | 1780mg/kg (1780mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: ATAXIA | Science Reports of the Research Institutes, Tohoku University, Series C: Medicine. Vol. 36(1-4), Pg. 10, 1989. |
rat | LD50 | oral | 5gm/kg (5000mg/kg) | MVC-Report. Vol. 2, Pg. 193, 1973. |
Reported in EPA TSCA Inventory.
Hazard Codes: Xn
Risk Statements: 36/37/38-20/21
R36/37/38: Irritating to eyes, respiratory system and skin.
R20/21: Harmful by inhalation and in contact with skin.
Safety Statements: 37/39-26
S37/39: Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RTECS: GN6370000
Poison by intravenous route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx.
7-Diethylamino-4-methylcoumarin (CAS NO.91-44-1) is a lactone (behaves as an ester) and an amine. Gives bright blue-white fluorescence in very dilute solutions. 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.