2,2'-Dipyridyldisulfide
2,2′-Dipyridyldisulfide, sometimes known as DPS, is used for preparing thiols[1][2] and activating carboxylic acid for coupling reactions, as in the following reaction:[3]
Names | |
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Preferred IUPAC name
2,2′-Disulfanediyldipyridine | |
Other names
1,2-Di(pyridin-2-yl)disulfane (not recommended) 2,2′-Dipyridyldisulfide 2,2′-Dipyridyldisulphide Aldrithiol-2 | |
Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.016.676 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C10H8N2S2 | |
Molar mass | 220.31 g·mol−1 |
Melting point | 56 to 58 °C (133 to 136 °F; 329 to 331 K) |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
Irritant (Xi) |
GHS labelling: | |
Warning | |
H315, H319, H335 | |
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references |
Uses
It is also used in molecular biology as an oxidising agent, for example to oxidise free thiols to form disulfide bonds in proteins.
References
- Futaki S. and Kitagawa K. (1994). "Peptide-Unit Assembling Using Disulfide Cross-Linking - a New Approach for Construction of Protein Models". Tetrahedron Lett. 35 (8): 1267–1270. doi:10.1016/0040-4039(94)88040-9.
- "Special Reagents for Thiol Groups". Aldrichimica Acta. 4 (3): 33–46.
- Thalmann A., Oertle K. and Gerlach H (1985). "Ricinelaidic acid lactone". Org. Synth. 7: 470. doi:10.15227/orgsyn.063.0192.
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