Description

3-Nitro-2H-Chromene is a versatile nitro-substituted chromene derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in the nitro group's reactivity, which facilitates a range of transformations, including reductions and cycloadditions, to construct complex heterocyclic frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, where it is used to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of potential drug candidates, particularly those with chromene or benzopyran cores, which exhibit a wide range of biological activities.
• Agrochemical Research: Used in developing novel pesticides and herbicides, where the nitro-chromene structure can contribute to new modes of action.
• Organic Synthesis: Acts as a dienophile in Diels-Alder reactions and a substrate for nucleophilic aromatic substitution, enabling the construction of diverse polycyclic compounds.
• Material Science Precursor: Investigated for the preparation of organic light-emitting diodes (OLEDs) and nonlinear optical (NLO) materials due to its electron-accepting nitro group.
• Dye and Pigment Chemistry: Serves as an intermediate in the synthesis of specialized chromophoric systems and functional dyes.
• Academic & R&D: A valuable reagent for methodological studies and exploring new synthetic pathways in university and corporate research laboratories.

Basic Information

Item	Detail
Product Name	3-Nitro-2H-Chromene
CAS No.	92210-53-2
Molecular Formula	C9H7NO3
Molecular Weight	177.16 g/mol
Synonyms	3-Nitro-2H-1-benzopyran; 3-Nitro-2H-chromene; 2H-1-Benzopyran, 3-nitro-; 3-Nitro-2H-1-benzopyran; 3-Nitrochromene; 2H-Chromene, 3-nitro-
EINECS	Contact for details

Quality Control

Our 3-Nitro-2H-Chromene is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This product is easily oxidized and should be handled under an inert atmosphere for long-term storage. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.