IUPAC Name: 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(3S,4R)-3-hydroxy-1-methylpiperidin-4-yl]chromen-4-one 
Empirical Formula: C₂₁H₂₀ClNO₅
Molecular Weight: 401.8402g/mol
Structure of 4H-1-Benzopyran-4-one,2-(2-chlorophenyl)-5,7-dihydroxy-8-[(3S,4R)-3-hydroxy-1-methyl-4-piperidinyl]- (CAS NO.146426-40-6):

Index of Refraction: 1.673
Molar Refractivity: 103.98 cm³
Molar Volume: 277.3 cm³
Polarizability: 41.22×10^-24cm³
Surface Tension: 66.4 dyne/cm
Density: 1.448 g/cm³
Flash Point: 318.8 °C
Enthalpy of Vaporization: 94.4 kJ/mol
Boiling Point: 603.6 °C at 760 mmHg
Vapour Pressure: 2.03E-15 mmHg at 25°C 
Product Categories: API intermediates 
Canonical SMILES: CN1CCC(C(C1)O)C2=C(C=C(C3=C2OC(=CC3=O)C4=CC=CC=C4Cl)O)O
Isomeric SMILES: CN1CC[C@@H]([C@@H](C1)O)C2=C(C=C(C3=C2OC(=CC3=O)C4=CC=CC=C4Cl)O)O
InChI: InChI=1S/C21H20ClNO5/c1-23-7-6-12(17(27)10-23)19-14(24)8-15(25)20-16(26)9-18(28-21(19)20)11-4-2-3-5-13(11)22/h2-5,8-9,12,17,24-25,27H,6-7,10H2,1H3/t12-,17+/m0/s1
InChIKey: BIIVYFLTOXDAOV-YVEFUNNKSA-N

  4H-1-Benzopyran-4-one,2-(2-chlorophenyl)-5,7-dihydroxy-8-[(3S,4R)-3-hydroxy-1-methyl-4-piperidinyl]- , its cas register number is 146426-40-6. It also can be called (-)cis-5,7-Dihydroxy-2-(2-chlorophenyl)-8-(4-(3-hydroxy-1-
methyl)piperidinyl)-4H-1-benzopyran-4-one ; Alvocidib ; L-868275 ; UNII-45AD6X575G ; Flavopiridol .