Basic information Safety Supplier Related

2-HYDROXY-5-NITROBENZYL BROMIDE

Basic information Safety Supplier Related

2-HYDROXY-5-NITROBENZYL BROMIDE Basic information

Product Name:
2-HYDROXY-5-NITROBENZYL BROMIDE
Synonyms:
  • KOSHLAND I
  • KOSHLAND REAGENT
  • KOSHLAND'S REAGENT
  • KOSHLAND'S REAGENT I
  • ALPHA-BROMO-4-NITRO-2-CRESOL
  • ALPHA-BROMO-4-NITRO-O-CRESOL
  • 2-BROMOMETHYL-4-NITROPHENOL
  • 2-HYDROXY-5-NITROBENZYL BROMIDE
CAS:
772-33-8
MF:
C7H6BrNO3
MW:
232.03
EINECS:
212-248-9
Product Categories:
  • Building Blocks
  • C6 to C8
  • Chemical Synthesis
  • Organic Building Blocks
  • Oxygen Compounds
  • Phenols
Mol File:
772-33-8.mol
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2-HYDROXY-5-NITROBENZYL BROMIDE Chemical Properties

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
pka
6.16±0.30(Predicted)
form 
Crystalline Powder
color 
Beige to light brown
BRN 
1868798
CAS DataBase Reference
772-33-8(CAS DataBase Reference)
EPA Substance Registry System
Phenol, 2-(bromomethyl)-4-nitro- (772-33-8)
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Safety Information

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3261 8/PG 2
WGK Germany 
3
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
29089990

MSDS

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2-HYDROXY-5-NITROBENZYL BROMIDE Usage And Synthesis

Chemical Properties

Beige to yellow crystalline powder

Uses

Reagent for sulfhydryl modification.1

Uses

2-Hydroxy-5-nitrobenzyl bromide is a chemical reagent that reacts with and modifies chemically the tryptophan portion of protein molecules..

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

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.]

2-HYDROXY-5-NITROBENZYL BROMIDE Preparation Products And Raw materials

Raw materials

2-HYDROXY-5-NITROBENZYL BROMIDESupplier

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