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EINECS 207-542-9
CAS No. 480-16-0 Density 1.799 g/cm3
Solubility methanol: 50 mg/mL Melting Point 299-300 °C (dec.)(lit.)
Formula C15H10O7 Boiling Point 645.5 °C at 760 mmHg
Molecular Weight 302.24 Flash Point 249.3 °C
Transport Information Appearance yellow to brown powder
Safety 26-36 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 480-16-0 (Morin) Hazard Symbols IrritantXi

Flavone,2',3,4',5,7-pentahydroxy- (8CI);2',3,4',5,7-Pentahydroxyflavone;2',4',3,5,7-Pentahydroxyflavone;2'-Hydroxypelargidenolon 1522;3,5,7,2',4'-Pentahydroxyflavone;3,5,7,2',4'-Pentahydroxyflavonol;C.I. 75660;C.I. Natural Yellow 11;LY 002079;NSC 19801;


Morin Consensus Reports

Reported in EPA TSCA Inventory.

Morin Specification

The 4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy-, with the CAS registry number 480-16-0, is also known as 2',3,4',5,7-Pentahydroxyflavone. It belongs to the product categories of Flavanols; Biochemistry; Flavonoids. Its EINECS number is 207-542-9. This chemical's molecular formula is C15H10O7 and molecular weight is 302.24. What's more, its systematic name is 2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one. Its classification codes are: (1)Antioxidants; (2)Indicators and reagents; (3)Mutation data; (4)Protective Agents. It should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides. It is used as food antioxidants.

Physical properties of 4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy- are: (1)ACD/LogP: 1.61; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 1.53; (4)ACD/LogD (pH 7.4): 0.22; (5)ACD/BCF (pH 5.5): 8.24; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 149.52; (8)ACD/KOC (pH 7.4): 7.29; (9)#H bond acceptors: 7; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 6; (12)Polar Surface Area: 72.45 Å2; (13)Index of Refraction: 1.823; (14)Molar Refractivity: 73.31 cm3; (15)Molar Volume: 167.9 cm3; (16)Polarizability: 29.06×10-24cm3; (17)Surface Tension: 114.8 dyne/cm; (18)Density: 1.799 g/cm3; (19)Flash Point: 249.3 °C; (20)Enthalpy of Vaporization: 98.67 kJ/mol; (21)Boiling Point: 645.5 °C at 760 mmHg; (22)Vapour Pressure: 2.94E-17 mmHg at 25°C.

Uses of 4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy-: it can be used to produce 2-(2,4-dimethoxy-phenyl)-3,5,7-trimethoxy-chromen-4-one by heating. It will need reagent potassium carbonate and solvent acetone with the reaction time of 4 hours. The yield is about 36%.

4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxy- can be used to produce 2-(2,4-dimethoxy-phenyl)-3,5,7-trimethoxy-chromen-4-one by heating

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. 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 clothing.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1c3c(O/C(=C1/O)c2ccc(O)cc2O)cc(O)cc3O
(2)Std. InChI: InChI=1S/C15H10O7/c16-6-1-2-8(9(18)3-6)15-14(21)13(20)12-10(19)4-7(17)5-11(12)22-15/h1-5,16-19,21H

The toxicity data is as follows: 

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 555mg/kg (555mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)


Archives Internationales de Pharmacodynamie et de Therapie. Vol. 123, Pg. 395, 1960.

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