| Identification | |
| Name: | 2H-1-Benzopyran-2-one,7-hydroxy-4-phenyl- |
| Synonyms: | Coumarin,7-hydroxy-4-phenyl- (7CI,8CI);Umbelliferone, 4-phenyl- (6CI);4-Phenyl-7-hydroxycoumarin;4-Phenylumbelliferone;7-Hydroxy-4-phenylcoumarin;NSC 78474; |
| CAS: | 2555-30-8 |
| Molecular Formula: | C15H10O3 |
| Molecular Weight: | 238.24 |
| InChI: | InChI=1/C15H10O3/c16-11-6-7-12-13(10-4-2-1-3-5-10)9-15(17)18-14(12)8-11/h1-9,16H |
| Molecular Structure: |  |
| Properties | |
| Melting Point: | 248-252 °C(lit.) |
| Flash Point: | 203.3°C |
| Boiling Point: | 458.3°Cat760mmHg |
| Density: | 1.34g/cm3 |
| Refractive index: | 1.666 |
| Specification: |
The 7-Hydroxy-4-phenylcoumarin is an organic compound with the formula C15H10O3. The IUPAC name of this chemical is 7-hydroxy-4-phenylchromen-2-one. With the CAS registry number 2555-30-8, it is also named as Hydroxy-7, phenyl-4-coumarine. The product's categories are Coumarin; Building Blocks; Coumarins; Heterocyclic Building Blocks. Physical properties about this chemical are: (1)ACD/LogP: 3.98; (2)ACD/LogD (pH 5.5): 3.97; (3)ACD/LogD (pH 7.4): 3.83; (4)ACD/BCF (pH 5.5): 615.57; (5)ACD/BCF (pH 7.4): 442.06; (6)ACD/KOC (pH 5.5): 3447.83; (7)ACD/KOC (pH 7.4): 2476.03; (8)#H bond acceptors: 3; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 2; (11)Polar Surface Area: 35.53Å2; (12)Index of Refraction: 1.666; (13)Molar Refractivity: 66.08 cm3; (14)Molar Volume: 177.7 cm3; (15)Polarizability: 26.19×10-24cm3; (16)Surface Tension: 58.2 dyne/cm; (17)Density: 1.34 g/cm3; (18)Flash Point: 203.3 °C; (19)Enthalpy of Vaporization: 74.61 kJ/mol; (20)Boiling Point: 458.3 °C at 760 mmHg; (21)Vapour Pressure: 5.11E-09 mmHg at 25°C. Preparation: this chemical can be prepared by 3-oxo-3-phenyl-propionic acid ethyl ester and benzene-1,3-diol. This reaction will need reagent p-TsOH. The reaction time is 10 min with reaction temperature of 60°C. The yield is about 92%. Uses of 7-Hydroxy-4-phenylcoumarin: it can be used to produce 7-hydroxy-8-iodo-4-phenyl-2H-1-benzopyran-2-one at ambient temperature. It will need ethanol and I2 with reaction time of 2 hours. The yield is about 80%. This chemical is irritating to eyes, respiratory system and skin. When you are using it, you should rinse immediately with plenty of water and seek medical advice, and wear suitable protective clothing, gloves and eye/face protection. This chemical can causes burns, in case of accident or if you feel unwell seek medical advice immediately. You can still convert the following datas into molecular structure: |
| Flash Point: | 203.3°C |
| Safety Data | |
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