(2S,5S)-Censavudine ((2S,5S)-OBP-601) is the (2S,5S)-enantiomer of Censavudine. Censavudine is a nucleoside reverse transcriptase inhibitor and a potent HIV inhibitor. (2S,5S)-Censavudine is a reagent for click chemistry. It contains Alkyne groups and could undergo CuAAc (copper-catalyzed azide-alkyne cycloaddition reaction) with compounds bearing an Azide group.

Physicochemical Properties

Molecular Formula	C12H12N2O4
Molecular Weight	248.23
Related CAS #	Censavudine;634907-30-5
Appearance	Typically exists as solid at room temperature
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: Please store this product in a sealed and protected environment, avoid exposure to moisture.
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

References

[1]. Robert A Smith, et al. The Nucleoside Analog BMS-986001 Shows Greater In Vitro Activity Against HIV-2 Than Against HIV-1. Antimicrob Agents Chemother. 2015 Dec;59(12):7437-46. [2]. Long Yuan, et al. Dried Blood Spot Analysis Without Dilution: Application to the LC-MS/MS Determination of BMS-986001 in Rat Dried Blood Spot. J Chromatogr B Analyt Technol Biomed Life Sci. 2015 Oct 1;1002:201-9.

Solubility Data

Solubility (In Vitro)

DMSO :~125 mg/mL (~503.57 mM)

Solubility (In Vivo)

Solubility in Formulation 1: 6.25 mg/mL (25.18 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 sonication. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 62.5 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	4.0285 mL	20.1426 mL	40.2852 mL
	5 mM	0.8057 mL	4.0285 mL	8.0570 mL
	10 mM	0.4029 mL	2.0143 mL	4.0285 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.