Description: Ebselen, also known as SPI-1005, is an organoselenium compound with potential anti-oxidant, anti-inflammatory and cytoprotective activity. Upon oral administration of SPI-1005, this agent mimics the activity of glutathione peroxidase (GPx) and can utilize glutathione to reduce other unstable molecules, thus preventing the formation of reactive oxygen species (ROS) and reducing oxidative stress on the cell. In the cochlea, this agent may prevent drug-induced injury to the auditory hair cells thereby preventing hearing loss. GPx is the main antioxidant enzyme in the cochlea and protects the inner ear from loud sounds and biochemical damage. In addition, ebselen is able to inhibit the activity of many enzymes involved in inflammation.

Synonym: SPI-1005; SPI1005; SPI 1005; Ebselen; PZ 51; PZ51; PZ-51; DR3305; DR 3305; DR-3305

IUPAC/Chemical Name: 2-phenylbenzo[d][1,2]selenazol-3(2H)-one

InChi Key: DYEFUKCXAQOFHX-UHFFFAOYSA-N

InChi Code: InChI=1S/C13H9NOSe/c15-13-11-8-4-5-9-12(11)16-14(13)10-6-2-1-3-7-10/h1-9H

SMILES Code: O=C1N(C2=CC=CC=C2)[Se]C3=CC=CC=C13

Appearance: White solid powder.

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2931.90.6000