3-nitro-2-pyridinesulfenyl chloride
Names
[ CAS No. ]: 
68206-45-1
        
[ Name ]: 
3-nitro-2-pyridinesulfenyl chloride
        
[Synonym ]:
                
                3-Nitro-2-pyridinesulfenyl chloride
                
                
            
                
                3-nitropyridine-2-sulfenyl chloride
                
                
            
                
                3-nitro-2-pyridinylsulfenyl chloride
                
                
            
                
                Pyridine,2-chlorothio-3-nitro
                
                
            
                
                2-Pyridinesulfenyl chloride,3-nitro
                
                
            
                
                3-nitropyridinesulfenyl chloride
                
                
            
                
                3-nitro-pyridin-2-ylsulfenyl chloride
                
                
            
                
                Npys-Cl
                
                
            
                
                Npys
                
                
            
                
                MFCD00274609
                
                
            
                
                3-Nitro-2-pyridinesulfenyl
                
                
                
                
    
Chemical & Physical Properties
[ Density]:
1.58g/cm3
            
[ Boiling Point ]:
376.8ºC at 760mmHg
            
[ Melting Point ]:
205ºC (dec.)(lit.)
            
[ Molecular Formula ]:
C5H3ClN2O2S
            
[ Molecular Weight ]:
190.60800
            
[ Flash Point ]:
181.7ºC
            
[ Exact Mass ]:
189.96000
            
[ PSA ]:
84.01000
            
[ LogP ]:
2.75890
            
[ Storage condition ]:
2-8°C
            
[ Water Solubility ]:
dichloromethane: soluble(lit.)
            
MSDS
Safety Information
[ Symbol ]:
                
                
                GHS05
            
[ Signal Word ]: 
Danger
            
[ Hazard Statements ]:
 H314
            
[ Precautionary Statements ]:
 P280-P305 + P351 + P338-P310
            
[ Personal Protective Equipment ]:
 Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
            
[ Hazard Codes ]:
 C
            
[ Risk Phrases ]:
 R34
            
[ Safety Phrases ]:
 26-27-36/37/39-45
            
[ RIDADR ]: 
UN 3261 8/PG 2
            
[ WGK Germany ]: 
3
            
Precursor & DownStream
Precursor
DownStream
Articles
Int. J. Pept. Protein Res. 43(4) , 363-6, (1994)
The 3-nitro-2-pyridinesulphenyl (Npys) moiety is finding increasing utility as a protecting-activating group for cysteine, particularly in the synthesis of cyclic and unsymmetrical disulfides using th...
Synthesis and stability of 3-nitro-2-pyridinesulfenyl chloride (NpysCl).Int. J. Pept. Protein Res. 42(2) , 159-64, (1993)
3-Nitro-2-pyridinesulfenyl chloride (NpysCl) is the starting material for the synthesis of N-, O- and S-Npys-protected amino acids. Two efficient, novel synthetic routes to NpysCl are described. The s...
Discriminative affinity labelling of opioid receptors by enkephalin and morphiceptin analogues containing 3-nitro-2-pyridinesulphenyl-activated thiol residues.J. Chromatogr. A. 597(1-2) , 425-8, (1992)
The thiol groups of leucinthiol, cysteamine and cysteine incorporated into opioid peptides enkephalin and morphiceptin were activated by the 3-nitro-2-pyridinesulphenyl (Npys) group to form mixed disu...