The Baicalein, with the CAS registry number 491-67-8, is also known as 5,6,7-Trihydroxy-2-phenyl-4H-chromen-4-one. It belongs to the product categories of Tri-substituted Flavones; The group of Scutellaria; Inhibitors; Aromatics; Heterocycles. This chemical's molecular formula is C₁₅H₁₀O₅ and molecular weight is 270.24. What's more, its IUPAC name is called 5,6,7-Trihydroxy-2-phenylchromen-4-one. It should be stored in a cool, dry and well-ventilated place. This chemical is a flavone, a type of flavonoid, originally isolated from the roots of Scutellaria baicalensis. It is used as an inhibitor of 12-lipoxygenase, leukotriene biosynthesis and release of lysosomal enzymes. Baicalein also inhibits cellular Ca2+ uptake and mobilization and adjuvant-induced arthritis. It is the flavonoid component of Nepalese and Sino-Japanese crude d.

Physical properties about Baicalein are: (1)ACD/LogP: 3.641; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.55; (4)ACD/LogD (pH 7.4): 2.21; (5)ACD/BCF (pH 5.5): 281.14; (6)ACD/BCF (pH 7.4): 12.89; (7)ACD/KOC (pH 5.5): 1859.72; (8)ACD/KOC (pH 7.4): 85.24; (9)#H bond acceptors: 5; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 86.99 Å²; (13)Index of Refraction: 1.732; (14)Molar Refractivity: 69.852 cm³; (15)Molar Volume: 174.563 cm³; (16)Polarizability: 27.691×10^-24cm³; (17)Surface Tension: 79.60 dyne/cm; (18)Density: 1.548 g/cm³; (19)Flash Point: 225.257 °C; (20)Enthalpy of Vaporization: 89.452 kJ/mol; (21)Boiling Point: 575.932 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25 °C.

Uses of Baicalein: it is used to produce other chemicals. For example, it can react with formaldehyde to get bis(5,6,7-trihydroxyflavon-8-yl)methane. This reaction needs solvents H₂O and ethanol at temperature of 90 °C. The reaction time is 8 hours. The yield is 85 %.

When you are dealing with this chemical, you should be very careful. This chemical is inflammation to the skin, eyes and respiratory system. It may cause damage to health by inhalation, in contacting with skin and if swallowed. Therefore, you should wear suitable protective clothing. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C\1c3c(O)c(O)c(O)cc3O/C(=C/1)c2ccccc2
(2) InChI: InChI=1S/C15H10O5/c16-9-6-11(8-4-2-1-3-5-8)20-12-7-10(17)14(18)15(19)13(9)12/h1-7,17-19H
(3) InChIKey: FXNFHKRTJBSTCS-UHFFFAOYSA-N