Colutehydroquinone is an isoflavone found in the root bark of Colutea arborescens. Colutehydroquinone has antifungal activity.

Physicochemical Properties

Molecular Formula	C18H20O6
Molecular Weight	332.35
Exact Mass	332.125
CAS #	181311-16-0
PubChem CID	101997792
Appearance	White to off-white solid powder
Boiling Point	461.2±45.0 °C(Predicted)
LogP	2.9
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	4
Heavy Atom Count	24
Complexity	405
Defined Atom Stereocenter Count	1
SMILES	COC1=CC2=C(C[C@@H](CO2)C3=CC(=C(C(=C3O)OC)OC)O)C=C1
InChi Key	RRVWIPPRKMQDAO-NSHDSACASA-N
InChi Code	InChI=1S/C18H20O6/c1-21-12-5-4-10-6-11(9-24-15(10)7-12)13-8-14(19)17(22-2)18(23-3)16(13)20/h4-5,7-8,11,19-20H,6,9H2,1-3H3/t11-/m0/s1
Chemical Name	2,3-dimethoxy-5-[(3R)-7-methoxy-3,4-dihydro-2H-chromen-3-yl]benzene-1,4-diol
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: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
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]. Colutequinone and colutehydroquinone, antifungal isoflavonoids from Colutea arborescens. Phytochemistry. 1996 Sep;43(2):377-80.
Additional Infomation	Colutehydroquinone has been reported in Colutea arborescens with data available.

Solubility Data

Solubility (In Vitro)

DMSO : 100 mg/mL (300.89 mM)

Solubility (In Vivo)

Solubility in Formulation 1: 2.5 mg/mL (7.52 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication. 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 (7.52 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 (7.52 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	3.0089 mL	15.0444 mL	30.0888 mL
	5 mM	0.6018 mL	3.0089 mL	6.0178 mL
	10 mM	0.3009 mL	1.5044 mL	3.0089 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.