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2645-22-9

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Basic Information
CAS No.: 2645-22-9
Name: 4,4'-DIPYRIDYL DISULFIDE
Article Data: 32
Molecular Structure:
Molecular Structure of 2645-22-9 (4,4'-DIPYRIDYL DISULFIDE)
Formula: C10H8N2S2
Molecular Weight: 220.319
Synonyms: Pyridine,4,4'-dithiodi- (6CI,7CI,8CI);4,4'-Bipyridyl disulfide;4,4'-Dipyridinedisulfide;4,4'-Dipyridyl disulfide;4,4'-Dithiobispyridine;4,4'-Dithiopyridine;4-Pyridyl disulfide;Aldrithiol 4;Bis(4-pyridinyl) disulfide;Bis(4-pyridyl) disulfide;Di(4-Pyridyl) disulfide;NSC 367080;
EINECS: 220-158-6
Density: 1.34 g/cm3
Melting Point: 76-78 °C(lit.)
Boiling Point: 356.095 °C at 760 mmHg
Flash Point: 169.16 °C
Appearance: white to orange crystalline powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
PSA: 76.38000
LogP: 3.27600
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Chemistry

Molecule structure of 4,4'-Dipyridyl disulfide (CAS NO.2645-22-9):

IUPAC Name: 4-Pyridin-4-yldisulfanylpyridine 
Molecular Weight: 220.31392 g/mol
Molecular Formula: C10H8N2S2 
Density: 1.34 g/cm3 
Melting Point: 76-78 °C(lit.)
Boiling Point: 356.1 °C at 760 mmHg 
Flash Point: 169.2 °C
Index of Refraction: 1.693
Molar Refractivity: 63.08 cm3
Molar Volume: 164.4 cm3
Surface Tension: 68.7 dyne/cm
Enthalpy of Vaporization: 57.76 kJ/mol
Vapour Pressure: 6.14E-05 mmHg at 25 °C 
Storage Temp.: 0-6 °C
XLogP3-AA: 1.9
H-Bond Acceptor: 2
Rotatable Bond Count: 3
Exact Mass: 220.01289
MonoIsotopic Mass: 220.01289
Topological Polar Surface Area: 25.8
Heavy Atom Count: 14
Canonical SMILES: C1=CN=CC=C1SSC2=CC=NC=C2
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
EINECS: 220-158-6
Product Categories: Pyridine series; Condensation & Active Esterification; Synthetic Organic Chemistry

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3

Specification

 4,4'-Dipyridyl disulfide (CAS NO.2645-22-9) is also named as Aldrithiol-4 ; NSC 367080 ; 4-(4-Pyridinyldithio)pyridine ; 4,4'-Disulfanediyldipyridine ; 4-Pyridin-4-yldisulfanylpyridine ; Di(4-pyridinyl) disulfide ; Pyridine, 4,4'-dithiobis- ; 4,4'-Dithiodipyridine . 4,4'-Dipyridyl disulfide (CAS NO.2645-22-9) is white to orange crystalline powder.