Chemical Property of OSW-1
Chemical Property:
- Vapor Pressure:0mmHg at 25°C
- Boiling Point:932.5 °C at 760 mmHg
- PKA:12.65±0.70(Predicted)
- Flash Point:267 °C
- PSA:216.97000
- Density:1.31 g/cm3
- LogP:4.02410
- Storage Temp.:Hygroscopic, Refrigerator, under inert atmosphere
- Solubility.:Chloroform (Slightly), Methanol (Slightly), Pyridine (Slightly)
- Purity/Quality:
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99%, *data from raw suppliers
OSW-1,>90%(Orsaponin) *data from reagent suppliers
Safty Information:
- Pictogram(s):
- Hazard Codes:
- MSDS Files:
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SDS file from LookChem
Useful:
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Description
OSW-1 is a saponin that has been found in O. saundersiae and has antiviral and anticancer activities. It is an inhibitor of oxysterol-binding protein (OSBP) and its paralog OSBP-related protein 4 (ORP4) with Ki values of 16 and 71 nM, respectively, in radioligand binding assays using HEK293T cell lysates. It induces OSBP translocalization from the cytoplasm to the trans-Golgi network and decreases intracellular levels of OSBP in HEK293 cells. OSW-1 inhibits replication of a variety of enteroviruses (IC50s = 2.4-9.4 nM), including replication of coxsackievirus B3 (CVB3) in infected HeLa R19 cells in an OSBP-dependent manner when used at a concentration of 3 nM. It also inhibits replication of hepatitis C virus (HCV) but not mouse hepatitis virus (MHV), a coronavirus. It protects against CVA9 and echovirus 2 infection in HeLa cells when used at a concentration of 10 nM. OSW-1 inhibits growth of HeLa and HEK293 cells (GI50s = 0.33 and 0.22 nM, respectively).
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Uses
OSW-1 is a unique steroidal saponin displaying selective cytotoxicity against cancer cell lines. From Ornithogalum Saundersiae bulbs.