Description

3,5-Di-tert-Butyl-4-Hydroxybenzonitrile is a sterically hindered phenolic compound that serves as a versatile chemical intermediate and a key building block for advanced materials. Its molecular structure, featuring both a nitrile group and a hindered phenol moiety, makes it valuable for synthesizing high-performance antioxidants, light stabilizers, and specialty polymers. This compound is primarily sought by R&D and production teams in the polymer additives, agrochemical, and pharmaceutical industries for developing products with enhanced stability and performance.

Application

• Polymer Additives: A crucial precursor for synthesizing high-performance hindered phenol antioxidants (HPAO) and light stabilizers used in plastics, rubbers, and synthetic fibers to prevent thermal and oxidative degradation.
• Agrochemical Intermediates: Used in the synthesis of certain herbicides and plant growth regulators, leveraging its phenolic structure for biological activity.
• Pharmaceutical Synthesis: Serves as a key building block in the research and development of active pharmaceutical ingredients (APIs), particularly where a sterically hindered phenolic group is required.
• Liquid Crystal & OLED Materials: Acts as an intermediate in the production of advanced electronic materials, including components for liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).
• Specialty Chemicals & Dyes: Utilized in the synthesis of complex organic molecules, including dyes, pigments, and other fine chemicals.
• Lubricant & Fuel Additives: Employed in the formulation of additives that improve the oxidative stability and lifespan of industrial lubricants and fuels.

Basic Information

Product Name	3,5-Di-tert-Butyl-4-Hydroxybenzonitrile
CAS No.	1988-88-1
Molecular Formula	C15H21NO
Molecular Weight	231.33 g/mol
Synonyms	4-Hydroxy-3,5-di-tert-butylbenzonitrile; Benzonitrile, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-; Cyanuryl 3,5-di-tert-butyl-4-hydroxybenzene; 3,5-Di-tert-butyl-4-hydroxybenzonitrile; DTBN; 2,6-Di-tert-butyl-4-cyanophenol; Antioxidant Intermediate 1790
EINECS	217-882-5

Quality Control

Our 3,5-Di-tert-Butyl-4-Hydroxybenzonitrile is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications for use in sensitive applications like polymer additives and pharmaceutical synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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 strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190°C - 195°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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