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4,4'-DIPYRIDYL DISULFIDE

4,4'-DIPYRIDYL DISULFIDE Structure
CAS No.
2645-22-9
Chemical Name:
4,4'-DIPYRIDYL DISULFIDE
Synonyms
DTDP;1,2-DI(PYRIDIN-4-YL)DISULFANE;4-Pds;DK7466;-4;Aldrithol-4;Aldrithiol 4;ALDRITHIOL(TM)-4;4-Pyridyl disulfide;4,4'-Dithiopyridine
CBNumber:
CB3285109
Molecular Formula:
C10H8N2S2
Molecular Weight:
220.31
MOL File:
2645-22-9.mol
MSDS File:
SDS
Modify Date:
2023/4/23 13:52:06

4,4'-DIPYRIDYL DISULFIDE 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
InChIKey UHBAPGWWRFVTFS-UHFFFAOYSA-N
CAS DataBase Reference 2645-22-9(CAS DataBase Reference)
NIST Chemistry Reference Pyridine, 4,4'-dithiobis-(2645-22-9)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H335-H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-24/25
WGK Germany  3
HS Code  29333990
NFPA 704
1
2 0

4,4'-DIPYRIDYL DISULFIDE price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 143057 Aldrithiol™-4 98% 2645-22-9 1G ₹2270 2022-06-14 Buy
Sigma-Aldrich(India) 143057 Aldrithiol™-4 98% 2645-22-9 5G ₹8090 2022-06-14 Buy
Sigma-Aldrich(India) 143057 Aldrithiol™-4 98% 2645-22-9 25G ₹27330 2022-06-14 Buy
TCI Chemicals (India) D2477 4,4'-Dipyridyl Disulfide min. 97.0 % 2645-22-9 5G ₹5800 2022-05-26 Buy
TCI Chemicals (India) D2477 4,4'-Dipyridyl Disulfide min. 97.0 % 2645-22-9 25G ₹20300 2022-05-26 Buy
Product number Packaging Price Buy
143057 1G ₹2270 Buy
143057 5G ₹8090 Buy
143057 25G ₹27330 Buy
D2477 5G ₹5800 Buy
D2477 25G ₹20300 Buy

4,4'-DIPYRIDYL DISULFIDE Chemical Properties,Uses,Production

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

Raw materials

Preparation Products

Global( 185)Suppliers
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CHEMSWORTH +91-261-2397244 New Delhi, India 6707 30 Inquiry
TCI Chemicals (India) Pvt. Ltd. 1800 425 7889 New Delhi, India 6778 58 Inquiry
Alfa Aesar 1 800 209 7001 Maharashtra, India 6913 58 Inquiry
A.J Chemicals 91-9810153283 New Delhi, India 6124 58 Inquiry
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CHEMSOON CO.,LTD. +8613761723174 China 1211 58 Inquiry
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 Pyridine, 4,4'-dithiodi- ALDRITHIOL(TM)-4 4,4'-DITHIODIPYRIDINE 4,4'-DIPYRIDYL DISULFIDE 4,4'-DIPYRIDYL DISULPHIDE 4,4Dipyridyldisulfide-(4,4dithiodipyridine) 4,4'-Dipyridyldisulfide,98% 4,4''-DIPYRIDYL DISULFIDE 97+% 4,4'-Dipyridinyl disulphide 4,4'-Dipyridyl disulphide, 98+% 4,4'-Dithiobis(pyridine) 4,4'-Dithiobispyridine Bis(4-pyridinyl) perdisulfide Bis(4-pyridinyl) persulfide 4,4'-Dithiodipyridine,98% Aldrithiol-4,4,4′-Dipyridyl disulfide, 4,4′-Dithiodipyridine Pyridine,4,4'-dithiobis- 4,4'-Dithiodipyridine SynonyMs 4,4'-Dipyridyl disulfide 4,6-bis(4-chlorophenyl)-2-[2-(4-morpholinyl)ethyl]-3-pyridazinone 4,4'-Dithiodipyridine (4-PDS) 4,4'-DipyridylDisulfide> 4,4'-DIPYRIDYL DISULFIDE ISO 9001:2015 REACH 4-(pyridin-4-yldisulfanyl)pyridine DTDP 4-Pds 1,2-DI(PYRIDIN-4-YL)DISULFANE DK7466 Vonoprazan Impurity 183 -4 Aldrithiol&trade 4,4'-Dithiodipyridine 4,4'-Dipyridine disulfide 4,4'-DIPYRIDYL DISULFIDE 2645-22-9 Pyridines Heterocyclic Building Blocks Building Blocks C9 to C46 Condensation & Active Esterification Condensation & Active Esterification Synthetic Organic Chemistry Pyridine series