Description

2-Cyano-3-(3,5-Ditert-Butyl-4-Hydroxyphenyl)Propenoic Acid Ethyl Ester is a high-performance hindered phenol derivative, valued for its role as a versatile intermediate and stabilizer. Its molecular structure provides excellent antioxidant properties, making it critical for protecting materials from oxidative degradation. This compound is essential for manufacturers in the polymer, specialty chemical, and agrochemical industries seeking to enhance product longevity and performance.

Application

• As a key antioxidant intermediate in the synthesis of advanced polymer stabilizers for plastics and elastomers.
• Used in the formulation of light stabilizers to protect coatings, adhesives, and synthetic fibers from UV-induced degradation.
• As a specialty chemical building block in pharmaceutical and agrochemical research for developing novel active ingredients.
• Employed in the production of lubricant and fuel additives to improve oxidative stability and service life.
• As a research chemical in academic and industrial laboratories studying free radical chemistry and stabilization mechanisms.
• Potential use as a stabilizer component in high-performance engineering plastics and synthetic rubbers.

Basic Information

Product Name	2-Cyano-3-(3,5-Ditert-Butyl-4-Hydroxyphenyl)Propenoic Acid Ethyl Ester
CAS No.	3293-92-3
Molecular Formula	C₂₀H₂₇NO₃
Molecular Weight	329.44 g/mol
Synonyms	Ethyl 2-Cyano-3-(3,5-di-tert-butyl-4-hydroxyphenyl)acrylate; Ethyl 2-Cyano-3,5-di-tert-butyl-4-hydroxycinnamate; 2-Propenoic acid, 2-cyano-3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-, ethyl ester; Cynoxate; Antioxidant 290; Light Stabilizer 290; UV Absorber 290; Ethyl Cyano(3,5-di-tert-butyl-4-hydroxycinnamate)
EINECS	221-945-1

Quality Control

Our production of 2-Cyano-3-(3,5-Ditert-Butyl-4-Hydroxyphenyl)Propenoic Acid Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all critical parameters are provided to guarantee supply reliability and batch-to-batch consistency for your formulations.

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 material is easily oxidized and should be kept under an inert atmosphere for long-term storage to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	96°C - 100°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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