Description

4-Oxo-4-Phenylamino-2-Butenoic Acid is a versatile chemical intermediate characterized by its unique α,β-unsaturated ketone structure linked to an anilide group. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly in pharmaceutical and fine chemical research. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing heterocyclic compounds and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of various heterocyclic compounds and potential active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in research and development for creating novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a building block for dyes, pigments, and other specialty organic compounds.
• Academic & Industrial Research: A valuable reagent in medicinal chemistry and organic synthesis for exploring new chemical entities and reaction pathways.
• Material Science: Investigated for use in the development of advanced polymers and functional materials.

Basic Information

Product Name	4-Oxo-4-Phenylamino-2-Butenoic Acid
CAS No.	37902-58-2
Molecular Formula	C10H9NO3
Molecular Weight	191.18 g/mol
Synonyms	4-Oxo-4-(phenylamino)-2-butenoic acid; (E)-4-Oxo-4-(phenylamino)but-2-enoic acid; 4-(Phenylamino)-4-oxo-2-butenoic acid; 2-Butenoic acid, 4-oxo-4-(phenylamino)-; N-Phenylmaleamic acid; Maleanilic acid; 4-Oxo-4-anilino-2-butenoic acid; 4-(Phenylamino)-4-oxobut-2-enoic acid
EINECS	Contact for details

Quality Control

Our 4-Oxo-4-Phenylamino-2-Butenoic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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