70331-81-6

Basic information

• Product Name: 2-hydroxy-3-iodo-5-nitrobenzaldehyde
• Synonyms: benzaldehyde, 2-hydroxy-3-iodo-5-nitro-
• CAS NO: 70331-81-6
• Molecular Formula: C₇H₄INO₄
• Molecular Weight: 293.0154
• Mol File: 70331-81-6.mol

Chemical Properties

• Boiling Point: 301.8°C at 760 mmHg
• Flash Point: 136.3°C
• Density: 2.195g/cm³
• Vapor Pressure: 0.000575mmHg at 25°C
• Refractive Index: 1.749
• CAS DataBase Reference: 2-hydroxy-3-iodo-5-nitrobenzaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 2-hydroxy-3-iodo-5-nitrobenzaldehyde(70331-81-6)
• EPA Substance Registry System: 2-hydroxy-3-iodo-5-nitrobenzaldehyde(70331-81-6)

Safety Data

• Hazardous Substances Data: 70331-81-6(Hazardous Substances Data)

Upstream product

• 97-51-8 5-Nitrosalicylaldehyde 
• 23602-64-4 2-hydroxy-3-iodo-benzaldehyde 
• 533-58-4 2-Iodophenol 

Relevant articles and documents

Diversely halogenated spiropyrans - Useful synthetic building blocks for a versatile class of molecular switches

Spiropyrans are dyes that can be reversibly switched to a highly colored merocyanine form by a number of stimuli such as light, mechanical force or temperature. To make use of these molecules, there is a requirement to functionalize them appropriately. Herein we report a library of spiropyrans bearing two (pseudo) halide functional groups on either half of the molecule. Such halide substituents are valuable, because they themselves may be used as reactive sites in cross-coupling reactions, for example. Different combinations of halides, for which different reactivities in cross-coupling reactions may be expected, will facilitate selective consecutive cross-coupling reactions and condensations. Data concerning the UV/vis characteristics, the photostationary equilibria of the materials as well as the half-life of the merocyanine forms in solution are presented.

Three-dimensional aggregation in 2-hydroxy-3-iodo-5-nitrobenzaldehyde involving C - H...O, iodo-nitro and aromatic π-π stacking interactions, and isolated dimers in disordered 2,4-diiodo-6-nitroanisole

The molecular and supramolecular structures of 2-hydroxy-3-iodo-5-nitrobenzaldehyde (I) and 2,4-diiodo-6-nitroanisole (II) were analyzed. The crystallographic atom numbering scheme differed from the conventional chemical numbering scheme in order that bot

Thermo- and Photochromic Dyes: Spiro(indolinebenzopyrans) 2. - Detailed Assignment of the 1H NMR Spectra and Structural Aspects of the Closed Form of 1,3,3-Trimethylspiro(indoline-2,2'-benzopyrans)

The proton NMR assignments for a series of 12 thermo- and photochromic 1,3,3-trimethylspiro(indoline-2,2'-benzopyrans) dyes is reported.All of the protons in the dye molecule were assigned through a combination of homonuclear decoupling experiments and correlation spectroscopy.The relative stereochemistry of the indolino gem-dimethyl groups was assigned so that, for the S-epimer, the pro-R methyl was found to resonate at 1.24 ppm while the pro-S methyl appeared at 1.37 ppm for compound 1. KEY WORDS: Thermo- and photochromic dyes, Spiro(indoline-2,2'-benzopyrans), 1H NMR assignments