Description

4H-1-Benzopyran-4-One,2-(4-Methoxyphenyl)-3-Nitro-(9Ci) CAS NO 143468-22-8 is a specialized nitro-substituted benzopyranone derivative, serving as a critical high-purity intermediate in advanced organic synthesis. Its unique molecular structure makes it valuable for constructing complex heterocyclic frameworks. This compound is primarily sought by pharmaceutical R&D and fine chemical sectors for developing novel active compounds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of potential drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Research: Used in developing novel active ingredients for crop protection products.
• Material Science: Serves as a precursor for organic electronic materials and advanced polymers.
• Dye & Pigment Synthesis: Intermediate for creating specialized chromophores and nitro-aromatic dyes.
• Academic & Contract Research: Essential reagent for methodological studies in organic chemistry and heterocyclic compound research.
• Chemical Biology Probes: Used in the development of molecular probes for studying biological pathways.

Basic Information

Item	Detail
Product Name	4H-1-Benzopyran-4-One,2-(4-Methoxyphenyl)-3-Nitro-(9Ci)
CAS No.	143468-22-8
Molecular Formula	C16H11NO5
Molecular Weight	297.26 g/mol
Synonyms	2-(4-Methoxyphenyl)-3-nitro-4H-chromen-4-one; 3-Nitro-2-(4-methoxyphenyl)-4H-chromen-4-one; 2-(4-Methoxyphenyl)-3-nitro-4H-1-benzopyran-4-one; 3-Nitro-2-(p-methoxyphenyl)chromone; Chromone, 2-(4-methoxyphenyl)-3-nitro-; 4H-1-Benzopyran-4-one, 2-(4-methoxyphenyl)-3-nitro- (9CI)
EINECS	Contact for details

Quality Control

We maintain a strict quality management system to ensure batch-to-batch consistency and high purity. Our standard grade for this intermediate typically meets a purity specification of ≥97% (HPLC), with comprehensive identity confirmation via spectroscopic methods. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting purity, identity, and relevant impurity profiles. We can support development projects with custom purity grades and analytical method development.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber-colored or stored in light-resistant secondary packaging.

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%
Heavy Metals	≤ 20 ppm

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