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  • Product Name:   N-Hydroxy-5-norbornene-2,3-dicarboximide
  • Synonyms:   HONB;LABOTEST-BB LT00112336;N-HYDROXY-5-NORBORNENE-2,3-DICARBOXYLIC ACID IMIDE;N-HYDROXY-5-NORBORNENE-2,3-DICARBOXYLIMIDE;N-HYDROXYBICYCLO[2.2.1]HEPT-5-ENE-2,3-DICARBOXYLIC ACID IMIDE
  • CAS No.:   21715-90-2
  • Molecular Formula:   C9H9NO3
  • Molecular Weight :   179.17
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of N-Hydroxy-5-norbornene-2,3-dicarboximide
N-Hydroxy-5-norbornene-2,3-dicarboximide Chemical Properties
Melting point  165-170 °C(lit.)
Boiling point  311.69°C (rough estimate)
density  1.2822 (rough estimate)
refractive index  1.5600 (estimate)
storage temp.  Store at RT.
solubility  Soluble in ethanol
BRN  13540
CAS DataBase Reference 21715-90-2(CAS DataBase Reference)
Safety Information
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
TSCA  Yes
HS Code  29280090
N-Hydroxy-5-norbornene-2,3-dicarboximide Usage And Synthesis
Chemical Properties white to off-white crystalline powder
Uses HONB is used in solution-phase peptide synthesis. Used in the synthesis of enkephalin analogs.
Uses Inhibits racemization in peptide synthesis using DCC as condensing agent.
Purification Methods Dissolve the imide in CHCl3, filter, evaporate and recrystallise from EtOAc. IR (nujol): max 1695, 1710 and 1770 (C=O), and 3100 (OH) cm-1. The O-acetyl derivative has m 113-114o (from EtOH) with IR bands at max 1730, 1770 and 1815 cm-1 only, and the O-benzoyl derivative has m 143-144o (from propan-2-ol or *C6H6). [Bauer & Miarka J Org Chem 24 1293 1959, Fujino et al. Chem Pharm Bull Jpn 22 1857 1974]. [Beilstein 21/10 V 188.]
N-Hydroxy-5-norbornene-2,3-dicarboximide Preparation Products And Raw materials

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