Description

1(3H)-Isobenzofuranone, 5-Nitro- CAS NO 67081-02-1 is a specialized nitro-substituted isobenzofuranone derivative, serving as a critical synthetic intermediate and building block in advanced organic chemistry. Its value lies in its unique aromatic lactone structure, which provides a versatile reactive site for constructing complex molecular frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), especially those with fused heterocyclic structures.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides, herbicides, and plant growth regulators.
• Organic Synthesis Building Block: A versatile reagent for constructing complex organic molecules in academic and industrial R&D laboratories.
• Dye and Pigment Intermediate: Serves as a starting material for synthesizing nitro-aromatic dyes and specialty colorants.
• Material Science Research: Investigated for the development of polymers and advanced materials with specific optical or electronic properties.

Basic Information

Product Name	1(3H)-Isobenzofuranone, 5-Nitro-
CAS No.	67081-02-1
Molecular Formula	C8H5NO4
Molecular Weight	179.13 g/mol
Synonyms	5-Nitroisobenzofuran-1(3H)-one; 5-Nitro-1(3H)-isobenzofuranone; 5-Nitrophthalide; 3H-Isobenzofuran-1-one, 5-nitro-; 5-Nitro-3H-isobenzofuran-1-one; Nitrophthalide
EINECS	Contact for details

Quality Control

Our 1(3H)-Isobenzofuranone, 5-Nitro- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and conformance to specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents.

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	≤ 1.0%
Residue on Ignition	≤ 0.5%

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