ChemicalBook
Chinese Japanese Germany Korea

2,2'-Dithiodipyridine

2,2'-Dithiodipyridine
2,2'-Dithiodipyridine structure
CAS No.
2127-03-9
Chemical Name:
2,2'-Dithiodipyridine
Synonyms
2PDS;Aldritiol;NSC 94055;Aldrithiol;Nsc 677438;Aldrithol-2;2-Aldrithiol;ALDRITHIOL-2;Dithiodipyridine;ALDRITHIOL(TM)-2
CBNumber:
CB5200205
Molecular Formula:
C10H8N2S2
Formula Weight:
220.31
MOL File:
2127-03-9.mol

2,2'-Dithiodipyridine Properties

Melting point:
56-58 °C(lit.)
Density 
1.3078 (rough estimate)
refractive index 
1.5500 (estimate)
Flash point:
210 °C
storage temp. 
2-8°C
solubility 
methanol: soluble50mg/mL, clear to very slightly hazy, colorless to faintly brownish-yellow
form 
powder
color 
Clear colorless to yellow to tan
Water Solubility 
5 g/L (20 ºC)
BRN 
154629
InChIKey
HAXFWIACAGNFHA-UHFFFAOYSA-N
CAS DataBase Reference
2127-03-9(CAS DataBase Reference)
NIST Chemistry Reference
Pyridine, 2,2'-dithiobis-(2127-03-9)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-37-20/22
Safety Statements  36/37/39-37/39-25-22-36-26
RIDADR  UN 3335
WGK Germany  3
10-23
Autoignition Temperature 340 °C
Hazard Note  Irritant
TSCA  Yes
HS Code  29333990

2,2'-Dithiodipyridine price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 143049 Aldrithiol?-2 98% 2127-03-9 1g $30.3 2018-11-13 Buy
Sigma-Aldrich 143049 Aldrithiol?-2 98% 2127-03-9 5g $79.6 2018-11-13 Buy
TCI Chemical D1114 2,2'-Dipyridyl Disulfide [for Peptide Synthesis] >98.0%(GC)(T) 2127-03-9 5g $55 2018-11-22 Buy
TCI Chemical D1114 2,2'-Dipyridyl Disulfide [for Peptide Synthesis] >98.0%(GC)(T) 2127-03-9 25g $151 2018-11-22 Buy
Alfa Aesar A11118 2,2'-Dipyridyl disulfide, 98% 2127-03-9 25g $180 2018-11-13 Buy

2,2'-Dithiodipyridine Chemical Properties,Uses,Production

Chemical Properties

white to yellowish crystalline powder

Uses

2,2'-Dipyridyldisulfide, sometimes known as DPS, is used for preparing thiols and activating or protecting carboxylic acid with triphenylphosphine.

Purification Methods

Recrystallise the disulfide H2O from *C6H6/pet ether (6:7), ligroin or *C6H6. The picrate has m 119o (from EtOH). [Walter et al. Justus Liebigs Ann Chem 695 7785 1966, Marckwald et al. Chem Ber 33 1556 1900, Brocklehurst & Little Biochem J 133 67,78 1973, Beilstein 21 III/IV 48.] 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 2-mercaptopyridine anion, thereby shifting the from 340nm (of the disulfide) to 268nm (of the anion) at pH 9, or 278nm in H2O. (Compare

2,2'-Dithiodipyridine Preparation Products And Raw materials

Raw materials

Preparation Products


2,2'-Dithiodipyridine Suppliers

Global( 214)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19918 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21696 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32447 55
Zjartschem
+86-571-8723 8903 jocelynpan@zjarts.com
+86-571-87063838 jocelynpan@zjarts.com CHINA 997 58
Hebei Chisure Biotechnology Co., Ltd.
+8613292890173
0311 66567340 luna@speedgainpharma.com CHINA 1017 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2995 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23980 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28236 58

View Lastest Price from 2,2'-Dithiodipyridine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-17 2,2'-Dithiodipyridine
2127-03-9
US $8.00 / kg 1kg 99% 10MT career henan chemical co
2019-04-18 2,2'-Dithiodipyridine
2127-03-9
US $10.00-10.00 / KG 1KG 99% 5000kg/month Hebei Chisure Biotechnology Co., Ltd.

2,2'-Dithiodipyridine Spectrum


2127-03-9(2,2'-Dithiodipyridine )Related Search:


Copyright 2017 © ChemicalBook. All rights reserved