6,7-Dihydroxy-4-methylcoumarin supplier

Name
4-METHYLESCULETIN
EINECS 208-470-0
CAS No. 529-84-0
Article Data30
CAS DataBase
Density 1.456 g/cm³
Solubility DMF: soluble in water
Melting Point 274-276 °C(lit.)
Formula C10H8 O4
Boiling Point 455.5 °C at 760 mmHg
Molecular Weight 192.171
Flash Point 190.7 °C
Transport Information
Appearance Yellow needle crystal
Safety Moderately toxic by ingestion. Slightly toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating vapors.
Risk Codes 36/37/38
Molecular Structure
Hazard Symbols Xi
Synonyms Coumarin,6,7-dihydroxy-4-methyl- (7CI,8CI); Esculetin, 4-methyl- (6CI);4-Methyl-6,7-dihydroxycoumarin; 4-Methylaesculetin; 4-Methylesculetin;4-Methylesculetol; 6,7-Dihydroxy-4-methylcoumarin; Methylesculetin; NSC 11828;NSC 688807
PSA 70.67000
LogP 1.51260

6,7-Dihydroxy-4-methylcoumarin Chemical Properties

IUPAC Name: 6,7-Dihydroxy-4-methylchromen-2-one
Synonyms : 6,7-Dihydroxy-4-methyl-2H-chromen-2-one ; 2H-1-benzopyran-2-one, 6,7-dihydroxy-4-methyl- ; 4-Methyl-6, 7-dihydroxycoumarin ; 4-Methyl-6,7-dihydroxycoumarin ; 4-Methylaesculetin ; 4-Methylesculetin ; 4-Methylesculetol
Molecular Structure :
Molecular Formula : C₁₀H₈O₄
Molecular Weight : 192.17
CAS NO: 529-84-0
EINECS : 208-470-0
BRN 162550
Product Categories: Coumarins
Index of Refraction: 1.651
Surface Tension: 63.4 dyne/cm
Density: 1.456 g/cm³
Flash Point: 190.7 °C
Enthalpy of Vaporization: 74.27 kJ/mol
Boiling Point: 455.5 °C at 760 mmHg
Vapour Pressure: 6.46E-09 mmHg at 25°C
Melting point: 274-276 °C(lit.)
Appearance: 4-Methylesculetin (CAS NO. 529-84-0) is yellow needle crystal.
Solubility: 4-Methylesculetin (CAS NO. 529-84-0) is soluble in hot water, alcohol, acetic acid, concentrated sulfuric acid and dilute alkali, the solution appears blue fluorescence, green in case of ferric chloride.

6,7-Dihydroxy-4-methylcoumarin Uses

4-Methylesculetin (CAS NO. 529-84-0) is used as a fluorescent indicator.

6,7-Dihydroxy-4-methylcoumarin Production

Phenyl triacetate is generated from reaction of p-benzoquinone with acetic anhydride in the presence of concentrated acid . reaction of phenyl triacetate with ethyl acetoacetate under the action of the sulfuric acid, the reactant poured into the ice water, precipitation of crude methyl 7 clovertei, re-crystallization the crystallization which is filtered out, then 4-Methylesculetin (CAS NO. 529-84-0) is derived.

6,7-Dihydroxy-4-methylcoumarin Toxicity Data With Reference

1.		ipr-rat LD50:5130 mg/kg		THERAP Therapie. 20 (1965),879.
2.		orl-mus LD50:3200 mg/kg		MPHEAE Medicina et Pharmacologia Experimentalis. 17 (1967),497.

6,7-Dihydroxy-4-methylcoumarin Consensus Reports

Reported in EPA TSCA Inventory.

6,7-Dihydroxy-4-methylcoumarin Safety Profile

Hazard Codes Irritant Xi
Risk Statements 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
WGK Germany 2
RTECS GN6384500
F 8

Product Name

4-METHYLESCULETIN