2,2'-Dipyridyldisulfide

2,2'-Dipyridyldisulfide

Names
IUPAC name 2,2'-Dipyridyldisulfide
Other names 2,2'-Dipyridyldisulphide Aldrithiol-2
Identifiers
CAS Registry Number	2127-03-9
ChEMBL	ChEMBL118678 Y
ChemSpider	58603 Y
InChI InChI=1S/C10H8N2S2/c1-3-7-11-9(5-1)13-14-10-6-2-4-8-12-10/h1-8H Y Key: HAXFWIACAGNFHA-UHFFFAOYSA-N Y InChI=1/C10H8N2S2/c1-3-7-11-9(5-1)13-14-10-6-2-4-8-12-10/h1-8H Key: HAXFWIACAGNFHA-UHFFFAOYAJ
Jmol-3D images	Image Image
SMILES S(Sc1ncccc1)c2ncccc2 c1ccnc(c1)SSc2ccccn2
Properties
Molecular formula	C10H8N2S2
Molar mass	220.31 g·mol−1
Melting point	56 to 58 °C (133 to 136 °F; 329 to 331 K)
Hazards
Main hazards	Irritant (Xi)
R-phrases	R36/37/38
S-phrases	S36/37/39
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Y verify (what is: Y/N?)
Infobox references

2,2'-Dipyridyldisulfide, sometimes known as DPS, is used for preparing thiols^[1][2] and activating or protecting carboxylic acid with triphenylphosphine in the following reaction.^[3]

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