4,4'-DIPYRIDYL DISULFIDE

4,4'-DIPYRIDYL DISULFIDE Suppliers list

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4,4'-DIPYRIDYL DISULFIDE manufacturers

4,4'-DIPYRIDYL DISULFIDE Basic information

Product Name:	4,4'-DIPYRIDYL DISULFIDE
Synonyms:	4-(4-Pyridinyldisulfanyl)pyridine;4,4'-Dipyridine disulfide;4,4'-Dithiopyridine;4-Pyridyl disulfide;Aldrithiol 4;Aldrithol-4;Bis(4-pyridyl) disulfide;Di(4-pyridyl) disulfide
CAS:	2645-22-9
MF:	C10H8N2S2
MW:	220.31
EINECS:	220-158-6
Product Categories:	Condensation & Active Esterification;Synthetic Organic Chemistry;Pyridine series
Mol File:	2645-22-9.mol

4,4'-DIPYRIDYL DISULFIDE Chemical Properties

Melting point	76-78 °C(lit.)
Boiling point	356.1±17.0 °C(Predicted)
density	1.3078 (rough estimate)
refractive index	1.5500 (estimate)
storage temp.	2-8°C
solubility	95% ethanol: soluble5%, clear, colorless to light yellow
form	Crystalline Powder
pka	3.60±0.26(Predicted)
color	White to orange
BRN	154742
InChI	InChI=1S/C10H8N2S2/c1-5-11-6-2-9(1)13-14-10-3-7-12-8-4-10/h1-8H
InChIKey	UHBAPGWWRFVTFS-UHFFFAOYSA-N
SMILES	S(C1C=CN=CC=1)SC1C=CN=CC=1
CAS DataBase Reference	2645-22-9(CAS DataBase Reference)
NIST Chemistry Reference	Pyridine, 4,4'-dithiobis-(2645-22-9)

Safety Information

MSDS Information

4,4'-DIPYRIDYL DISULFIDE Usage And Synthesis

Chemical Properties	white to orange crystalline powder
Uses	Aldrithiol-4 was used as cosubstrate in a study to develop highly specific inhibitors against mannose-binding lectin-associated serine proteases by in vitro evolution technology:phage display. It was used to study the O₂ equilibria of recombinant human neuroglobin and cytoglobin measured under close to physiological conditions. It was used to modify gold surfaces for protein studies.
Definition	ChEBI: An organic disulfide obtained by formal oxidative dimerisation of 4-thiopyridine.
Purification Methods	Recrystallise the disulfide from H2O, EtOH, Me2CO, *C6H6 or pet ether. It has been used as a 1mM solution in EtOH for the spectrophotometric estimation of thiols. Essentially the thiol displaces half the disulfide molecule liberating the 4-mercaptopyridine (4-pyridinethiol) anion, thereby shifting the max from 324nm (of the disulfide) to 285nm (of the anion) at pH 9. (Compare with 2,2’dipyridyl disulfide above which has been used for the same purpose.) [Humphrey et al. Anal Chem 40 698 1970, Cheng & Ritchie Aust J Chem 26 1785 1973.] [Beilstein 21 II 35, for review see Aldrichimica Acta 4 33 1971.]

4,4'-DIPYRIDYL DISULFIDE Preparation Products And Raw materials

Preparation Products

Tag:4,4'-DIPYRIDYL DISULFIDE(2645-22-9) Related Product Information

S-Methyl methanethiolsulfonate 4,4'-Bipyridine Dimethyl disulfide 4-Mercaptopyridine 4,4'-DIPYRIDYL DISULFIDE 2,2'-Dithiodipyridine 3,3'-dipyridyl disulfide