Description

3-tert-Butylpyrocatechol (CAS NO 4026-05-5) is a high-purity phenolic compound widely recognized as an effective polymerization inhibitor and antioxidant. Its primary commercial value lies in its ability to stabilize monomers and other sensitive chemicals against premature polymerization during storage, transport, and processing. This product is essential for manufacturers in the polymer, petrochemical, and specialty chemical industries who require reliable stabilization solutions to ensure product quality and operational safety.

Application

• Polymerization Inhibitor: Used to prevent the premature polymerization of vinyl monomers like styrene, acrylates, and butadiene during production and storage.
• Antioxidant Stabilizer: Protects fuels, lubricants, and various organic compounds from oxidative degradation, extending their shelf life and performance.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex antioxidants, UV stabilizers, and specialty phenolic resins.
• Rubber & Elastomer Industry: Acts as an antioxidant and anti-aging agent in the production of synthetic rubbers to prevent chain scission and cross-linking.
• Adhesive & Coating Formulations: Incorporated to stabilize reactive components and prevent gelation in acrylic and other polymer-based systems.
• Petroleum Additive: Used in gasoline and jet fuels to inhibit gum formation and improve storage stability.

Basic Information

Product Name	3-tert-Butylpyrocatechol
CAS No.	4026-05-5
Molecular Formula	C10H14O2
Molecular Weight	166.22 g/mol
Synonyms	3-tert-Butylcatechol; 4-tert-Butylpyrocatechol; TBPC; TBC; 3-tert-Butyl-1,2-benzenediol; 4-tert-Butyl-1,2-dihydroxybenzene; Inhibitor TBC; 1,2-Dihydroxy-4-tert-butylbenzene
EINECS	223-701-2

Quality Control

Our 3-tert-Butylpyrocatechol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use as a high-performance inhibitor. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. Isolate from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 99.0%
Melting Point	52 - 56 °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.