Angoline is a potent and specific inhibitor of the IL6/STAT3 signaling pathway with IC50 of 11.56 μM. Angoline inhibits STAT3 phosphorylation and its target gene expression, and inhibits cancer cell proliferation/growth.

Physicochemical Properties

Molecular Formula	C22H21NO5
Molecular Weight	379.41
Exact Mass	379.142
CAS #	21080-31-9
Related CAS #	Angoline hydrochloride;1071676-04-4
PubChem CID	189060
Appearance	White to off-white solid powder
Density	1.36g/cm3
Boiling Point	555.5ºC at 760 mmHg
Flash Point	164.1ºC
Vapour Pressure	2.23E-12mmHg at 25°C
Index of Refraction	1.678
LogP	4.412
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	3
Heavy Atom Count	28
Complexity	561
Defined Atom Stereocenter Count	0
InChi Key	LVWAKZBZWYHYCJ-UHFFFAOYSA-N
InChi Code	InChI=1S/C22H21NO5/c1-23-20-14(6-5-12-9-17-18(10-15(12)20)28-11-27-17)13-7-8-16(24-2)21(25-3)19(13)22(23)26-4/h5-10,22H,11H2,1-4H3
Chemical Name	1,2,13-trimethoxy-12-methyl-13H-[1,3]benzodioxolo[5,6-c]phenanthridine
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

Targets	IC50: 11.56 μM (IL6/STAT3 signaling pathway), 3.32 μM (MDA-MB-231), 4.72 μM (H4), 3.14 μM (HepG2)[1]
ln Vitro	The STAT3, STAT1, and NF-κB signaling pathways are inhibited by angoline (0-100 μM; 1 h), with IC50 values of 11.56, >100, and >100 μM, respectively [1]. The effects of angoline (0-100 μM; 2 h) on STAT3 phosphorylation [1]. Angoline (0-100 μM; 72 h) suppresses the proliferation of HepG2, H4, and MDA-MB-231 cells [1].
Cell Assay	Western Blot Analysis[1] Cell Types: HepG2/STAT3 cell line Tested Tested Concentrations: 0, 1, 10, 30 and 100 μM Incubation Duration: 2 hrs (hours) Experimental Results: Inhibited IL-6-induced phosphorylation of STAT3 in HepG2/STAT3 cells. Cell Proliferation Assay[1] Cell Types: MDA-MB-231, H4 and HepG2 cell lines Tested Tested Concentrations: 0-100 μM Incubation Duration: 72 hrs (hours) Experimental Results: Inhibited proliferation of MDA-MB-231, H4 and HepG2 cells with IC50 values of 3.32, 4.72 and 3.14 μM, respectively.
References	[1]. Angoline: a selective IL-6/STAT3 signaling pathway inhibitor isolated from Zanthoxylum nitidum. Phytomedicine. Jul-Aug 2014;21(8-9):1088-91.
Additional Infomation	Angoline is a benzophenanthridine alkaloid. Angoline has been reported in Chelidonium majus, Macleaya cordata, and other organisms with data available.

Solubility Data

Solubility (In Vitro)

DMSO: 20.83 mg/mL (54.90 mM)

Solubility (In Vivo)

Solubility in Formulation 1: 2.5 mg/mL (6.59 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear 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 (6.59 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication. 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.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.6357 mL	13.1784 mL	26.3567 mL
	5 mM	0.5271 mL	2.6357 mL	5.2713 mL
	10 mM	0.2636 mL	1.3178 mL	2.6357 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.