ChemicalBook > CAS DataBase List > 4,4'-DIPYRIDYL DISULFIDE
4,4'-DIPYRIDYL DISULFIDE
- Product Name
- 4,4'-DIPYRIDYL DISULFIDE
- 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
- Formula Weight
- 220.31
- MOL File
- 2645-22-9.mol
More
Less
4,4'-DIPYRIDYL DISULFIDE Property
- 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)
More
Less
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-24/25
- WGK Germany
- 3
- HS Code
- 29333990
More
Less
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
More
Less
N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 143057
- Product name
- Aldrithiol?-4
- Purity
- 98%
- Packaging
- 1g
- Price
- $77.2
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 143057
- Product name
- Aldrithiol?-4
- Purity
- 98%
- Packaging
- 5g
- Price
- $210
- Updated
- 2024/03/01
TCI Chemical
- Product number
- D2477
- Product name
- 4,4'-Dipyridyl Disulfide
- Purity
- >97.0%(GC)(T)
- Packaging
- 5g
- Price
- $138
- Updated
- 2024/03/01
TCI Chemical
- Product number
- D2477
- Product name
- 4,4'-Dipyridyl Disulfide
- Purity
- >97.0%(GC)(T)
- Packaging
- 25g
- Price
- $442
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- B24023
- Product name
- 4,4'-Dipyridyl disulfide
- Purity
- 98%
- Packaging
- 1g
- Price
- $34.3
- Updated
- 2021/12/16
More
Less
4,4'-DIPYRIDYL DISULFIDE Chemical Properties,Usage,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
More
Less
4,4'-DIPYRIDYL DISULFIDE Suppliers
- Tel
- --
- Fax
- --
- sales@carbosynth.com
- Country
- United Kingdom
- ProdList
- 6005
- Advantage
- 58
- Tel
- --
- Fax
- --
- sales@apolloscientific.co.uk
- Country
- United Kingdom
- ProdList
- 6084
- Advantage
- 88
- Tel
- --
- Fax
- --
- cms.marketing@cms-chemicals.com
- Country
- United Kingdom
- ProdList
- 3708
- Advantage
- 60
- Tel
- --
- Fax
- --
- sales@tci-uk.co.uk
- Country
- United Kingdom
- ProdList
- 1637
- Advantage
- 50
- Tel
- --
- Fax
- --
- sales@carbosynth.com
- Country
- United Kingdom
- ProdList
- 6581
- Advantage
- 61
- Tel
- --
- Fax
- --
- kevinbanks@molekula.com
- Country
- United Kingdom
- ProdList
- 6140
- Advantage
- 66
- Tel
- --
- Fax
- --
- sales@carbonesci.com
- Country
- United Kingdom
- ProdList
- 6666
- Advantage
- 30
- Tel
- --
- Fax
- --
- sales@gs-chem.com
- Country
- United Kingdom
- ProdList
- 6098
- Advantage
- 47
- Tel
- --
- Fax
- --
- Country
- United Kingdom
- ProdList
- 6309
- Advantage
- 46
- Tel
- --
- Fax
- --
- ariac@web.am
- Country
- United Kingdom
- ProdList
- 2466
- Advantage
- 46
- Tel
- --
- Fax
- --
- solutions@vwr.com
- Country
- United Kingdom
- ProdList
- 6548
- Advantage
- 82
More
Less
View Lastest Price from 4,4'-DIPYRIDYL DISULFIDE manufacturers
Dideu Industries Group Limited
- Product
- 4,4'-DIPYRIDYL DISULFIDE 2645-22-9
- Price
- US $1.10/g
- Min. Order
- 1g
- Purity
- 99.00%
- Supply Ability
- 100 Tons Min
- Release date
- 2021-10-27
Hebei shuoxi biotechnology co. LTD
- Product
- 4,4'-dipyridyl disulfide 2645-22-9
- Price
- US $90.00/g
- Min. Order
- 10g
- Purity
- 99.8%
- Supply Ability
- 10tons
- Release date
- 2020-04-26
Career Henan Chemical Co
- Product
- 4,4'-DIPYRIDYL DISULFIDE 2645-22-9
- Price
- US $8.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 10MT
- Release date
- 2018-12-16
2645-22-9, 4,4'-DIPYRIDYL DISULFIDERelated Search:
S-Methyl methanethiolsulfonate
4,4'-Bipyridine
Dimethyl disulfide
4-Mercaptopyridine
4,4'-DIPYRIDYL DISULFIDE
2,2'-Dithiodipyridine
3,3'-dipyridyl disulfide