3-Furanboronic acid is a biochemical compound that could be utilized as a biomaterial or organic/chemical reagent for biomedical research.

Physicochemical Properties

Molecular Formula	C4H5BO3
Molecular Weight	111.89
Exact Mass	112.033
CAS #	55552-70-0
PubChem CID	2734358
Appearance	Off-white to gray solid powder
Density	1.3±0.1 g/cm3
Boiling Point	247.7±32.0 °C at 760 mmHg
Melting Point	139-144 °C (dec.)(lit.)
Flash Point	103.6±25.1 °C
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.490
LogP	0.75
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Heavy Atom Count	8
Complexity	75.7
Defined Atom Stereocenter Count	0
InChi Key	CYEFKCRAAGLNHW-UHFFFAOYSA-N
InChi Code	InChI=1S/C4H5BO3/c6-5(7)4-1-2-8-3-4/h1-3,6-7H
Chemical Name	furan-3-ylboronic acid
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
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

Solubility Data

Solubility (In Vitro)

DMSO: 125 mg/mL (1117.17 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.08 mg/mL (18.59 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 20.8 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: ≥ 2.08 mg/mL (18.59 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 20.8 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: ≥ 2.08 mg/mL (18.59 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 20.8 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	8.9373 mL	44.6867 mL	89.3735 mL
	5 mM	1.7875 mL	8.9373 mL	17.8747 mL
	10 mM	0.8937 mL	4.4687 mL	8.9373 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.