| Identification | More |  [Name]
  2-HYDROXY-5-NITROBENZYL BROMIDE |  [CAS]
  772-33-8 |  [Synonyms]
  2-BROMOMETHYL-4-NITROPHENOL 2-HYDROXY-5-NITROBENZYL BROMIDE ALPHA-BROMO-4-NITRO-2-CRESOL ALPHA-BROMO-4-NITRO-O-CRESOL KOSHLAND I KOSHLAND REAGENT KOSHLAND'S REAGENT KOSHLAND'S REAGENT I 2-(bromomethyl)-4-nitro-pheno o-Cresol, alpha-bromo-4-nitro- Phenol, 2-(bromomethyl)-4-nitro- a-Bromo-4-nitro-o-cresol a-Bromo-4-nitro-o-methylphenol BETA-1-BROMO-4-NITRO-O-CRESOL α-bromo-4-nitro-o-cresol α-Bromo-4-nitro-o-cresol,  2-Bromomethyl-4-nitrophenol,  Koshland  I,  Koshlands  Reagent  I 2-Hydroxy-5-nitrobenzyl bromide ,95% Koshland's reagent 1 |  [EINECS(EC#)]
  212-248-9 |  [Molecular Formula]
  C7H6BrNO3 |  [MDL Number]
  MFCD00007340 |  [Molecular Weight]
  232.03 |  [MOL File]
  772-33-8.mol |  
 | Chemical Properties | Back Directory |  [Appearance]
  Beige to yellow crystalline powder |  [Melting point ]
  144-149 °C(lit.) |  [Boiling point ]
  383.0±32.0 °C(Predicted) |  [density ]
  1.795 |  [refractive index ]
  1.6090 (estimate) |  [storage temp. ]
  2-8°C 
 |  [solubility ]
  chloroform: soluble25mg/mL, clear, yellow |  [form ]
  Crystalline Powder |  [pka]
  6.16±0.30(Predicted) |  [color ]
  Beige to light brown |  [Detection Methods]
  HPLC |  [BRN ]
  1868798 |  [InChI]
  InChI=1S/C7H6BrNO3/c8-4-5-3-6(9(11)12)1-2-7(5)10/h1-3,10H,4H2 |  [InChIKey]
  KFDPCYZHENQOBV-UHFFFAOYSA-N |  [SMILES]
  C1(O)=CC=C([N+]([O-])=O)C=C1CBr |  [CAS DataBase Reference]
  772-33-8(CAS DataBase Reference) |  [Storage Precautions]
  Moisture sensitive |  [EPA Substance Registry System]
  Phenol, 2-(bromomethyl)-4-nitro- (772-33-8) |  
 | Safety Data | Back Directory |  [Hazard Codes ]
  C |  [Risk Statements ]
  R34:Causes burns. |  [Safety Statements ]
  S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . |  [RIDADR ]
  UN 3261 8/PG 2 
 |  [WGK Germany ]
  3 
 |  [TSCA ]
  Yes |  [HazardClass ]
  8 |  [PackingGroup ]
  III |  [HS Code ]
  29089990 |  
 | Hazard Information | Back Directory |  [Chemical Properties]
  Beige to yellow crystalline powder |  [Uses]
 
 2-Hydroxy-5-nitrobenzyl bromide was used in covalent modification of tryptophan and tryptophan residues in monoclonal immunoglobulin. It was also used as reagent for sulfhydryl modification   |  [Uses]
  2-Hydroxy-5-nitrobenzyl bromide is a chemical reagent that reacts with and modifies chemically the tryptophan portion of protein molecules.. |  [Uses]
  Reagent for sulfhydryl modification.1 |  [Synthesis Reference(s)]
  Journal of the American Chemical Society, 86, p. 1448, 1964 DOI: 10.1021/ja01061a045 |  [General Description]
 
 2-Hydroxy-5-nitrobenzyl bromide is a protein modifying reagent.  |  [Purification Methods]
  Crystallise the bromide from *benzene or *benzene/ligroin. It is slightly soluble in EtOH, soluble in *C6H6 and AcOH, and very soluble in ligroin. [Beilstein 6 H 367.] |  
  
             | 
            
            
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
             |