Description

4H-1-Benzopyran-4-One, 5-(Acetyloxy)- is a specialized organic compound belonging to the chromone class, serving as a key synthetic intermediate and building block in advanced chemical synthesis. Its acetylated phenolic structure makes it a versatile precursor for developing novel pharmaceutical agents and fine chemicals. This high-purity material is essential for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create complex molecular architectures.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those with chromone or flavonoid-based pharmacophores targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new active ingredients for crop protection products, leveraging its heterocyclic core structure.
• Fine Chemical Production: Serves as a precursor for the manufacture of specialty chemicals, including dyes, pigments, and advanced organic materials.
• Biochemical Research: Employed as a standard or reagent in academic and industrial research laboratories studying enzyme inhibition, receptor binding, or metabolic pathways.
• Material Science: Investigated for the development of organic semiconductors, light-emitting materials, or other functional polymers due to its conjugated system.

Basic Information

Product Name	4H-1-Benzopyran-4-One, 5-(Acetyloxy)-
CAS No.	34815-53-7
Molecular Formula	C11H8O4
Molecular Weight	204.18 g/mol
Synonyms	5-Acetoxychromone; 5-Acetyloxychromone; 5-Acetoxy-4H-chromen-4-one; 5-Acetyloxy-1-benzopyran-4-one; 4H-1-Benzopyran-4-one, 5-(acetyloxy)-; 5-Hydroxychromone acetate; Chromone, 5-acetoxy-
EINECS	Contact for details

Quality Control

Our production of 4H-1-Benzopyran-4-One, 5-(Acetyloxy)- adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is manufactured and tested in facilities that implement current Good Manufacturing Practices (cGMP) where applicable. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles, typically determined via advanced analytical techniques like HPLC, GC, and NMR. We support compliance with global regulatory frameworks including REACH.

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). This compound is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light sources to maintain stability and prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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