Pinobanksin causes apoptosis in B-cell lymphoma cell lines.

Physicochemical Properties

Molecular Formula	C15H12O5
Molecular Weight	272.25
Exact Mass	272.068
CAS #	548-82-3
PubChem CID	73202
Appearance	White to off-white solid powder
Density	1.5±0.1 g/cm3
Boiling Point	570.6±50.0 °C at 760 mmHg
Flash Point	222.0±23.6 °C
Vapour Pressure	0.0±1.7 mmHg at 25°C
Index of Refraction	1.696
LogP	3.15
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	1
Heavy Atom Count	20
Complexity	365
Defined Atom Stereocenter Count	2
SMILES	C1=CC=C(C=C1)[C@@H]2[C@H](C(=O)C3=C(C=C(C=C3O2)O)O)O
InChi Key	SUYJZKRQHBQNCA-LSDHHAIUSA-N
InChi Code	InChI=1S/C15H12O5/c16-9-6-10(17)12-11(7-9)20-15(14(19)13(12)18)8-4-2-1-3-5-8/h1-7,14-17,19H/t14-,15+/m0/s1
Chemical Name	(2R,3R)-3,5,7-trihydroxy-2-phenyl-2,3-dihydrochromen-4-one
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References	[1]. Apoptotic induction by pinobanksin and some of its ester derivatives from Sonoran propolis in a B-cell lymphoma cell line. Chem Biol Interact.
Additional Infomation	Pinobanksin is a trihydroxyflavanone in which the three hydroxy substituents are located at positions 3, 5 and 7. It has a role as an antimutagen, an antioxidant and a metabolite. It is a trihydroxyflavanone and a secondary alpha-hydroxy ketone. Pinobanksin has been reported in Apis, Populus yunnanensis, and other organisms with data available.

Solubility Data

Solubility (In Vitro)

DMSO : ~100 mg/mL (~367.31 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (9.18 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (9.18 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (9.18 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	3.6731 mL	18.3655 mL	36.7309 mL
	5 mM	0.7346 mL	3.6731 mL	7.3462 mL
	10 mM	0.3673 mL	1.8365 mL	3.6731 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.