Synonym
                                        OT-551; CPC-551; OT 551; CPC 551; OT551; CPC551
                                     
                                    
                                        IUPAC/Chemical Name
                                        1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl cyclopropanecarboxylate
                                     
                                    
                                        InChi Key
                                        ZWEXEKJLDHNLLA-UHFFFAOYSA-N
                                     
                                    
                                        InChi Code
                                        InChI=1S/C13H23NO3/c1-12(2)7-10(8-13(3,4)14(12)16)17-11(15)9-5-6-9/h9-10,16H,5-8H2,1-4H3
                                     
                                    
                                        SMILES Code
                                        O=C(C1CC1)OC2CC(C)(C)N(O)C(C)(C)C2
                                     
                                    
                                    
                                        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
                                     
                                    
                                        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
                                        2934.99.9001
                                     
                                    
                                 
                             
                            
                                                        
                                                                
                                    Preparing Stock Solutions
                                    
                                        The following data is based on the
                                        product
                                        molecular weight
                                        241.33
                                        Batch specific molecular weights may vary
                                        from batch to batch
                                        due to the degree of hydration, which will
                                        affect the solvent
                                        volumes required to prepare stock solutions.
                                    
                                    
                                    
                                        
                                            
                                            
                                                | Concentration / Solvent Volume / Mass | 
                                                1 mg | 
                                                5 mg | 
                                                10 mg | 
                                            
                                            
                                            
                                            
                                                | 1 mM | 
                                                1.15 mL | 
                                                5.76 mL | 
                                                11.51 mL | 
                                            
                                            
                                                | 5 mM | 
                                                0.23 mL | 
                                                1.15 mL | 
                                                2.3 mL | 
                                            
                                            
                                                | 10 mM | 
                                                0.12 mL | 
                                                0.58 mL | 
                                                1.15 mL | 
                                            
                                            
                                                | 50 mM | 
                                                0.02 mL | 
                                                0.12 mL | 
                                                0.23 mL | 
                                            
                                            
                                        
                                     
                                 
                                                             
                            
                            
                                
                                    1: Wong WT, Kam W, Cunningham D, Harrington M, Hammel K, Meyerle CB, Cukras C, Chew EY, Sadda SR, Ferris FL. Treatment of geographic atrophy by the topical administration of OT-551: results of a phase II clinical trial. Invest Ophthalmol Vis Sci. 2010 Dec;51(12):6131-9. doi: 10.1167/iovs.10-5637. PubMed PMID: 20574018; PubMed Central PMCID: PMC3055748.
2: Tanito M, Li F, Anderson RE. Protection of retinal pigment epithelium by OT-551 and its metabolite TEMPOL-H against light-induced damage in rats. Exp Eye  Res. 2010 Jul;91(1):111-4. doi: 10.1016/j.exer.2010.04.012. PubMed PMID: 20434439; PubMed Central PMCID: PMC3175818.
3: Zarling JA, Brunt VE, Vallerga AK, Li W, Tao A, Zarling DA, Minson CT. Nitroxide pharmaceutical development for age-related degeneration and disease. Front Genet. 2015 Nov 6;6:325. doi: 10.3389/fgene.2015.00325. Review. PubMed PMID: 26594225; PubMed Central PMCID: PMC4635221.
4: Tanito M, Li F, Elliott MH, Dittmar M, Anderson RE. Protective effect of TEMPOL derivatives against light-induced retinal damage in rats. Invest Ophthalmol Vis Sci. 2007 Apr;48(4):1900-5. PubMed PMID: 17389526.
5: Leung E, Landa G. Update on current and future novel therapies for dry age-related macular degeneration. Expert Rev Clin Pharmacol. 2013 Sep;6(5):565-79. doi: 10.1586/17512433.2013.829645. Review. PubMed PMID: 23971874.
6: Ni Z, Hui P. Emerging pharmacologic therapies for wet age-related macular degeneration. Ophthalmologica. 2009;223(6):401-10. doi: 10.1159/000228926. Review. PubMed PMID: 19622904.