Description

2,2,5,7,8-Pentamethylchroman is a synthetic chroman derivative, a member of the tocopherol (Vitamin E) family of compounds. This specialized chemical serves as a crucial high-performance antioxidant intermediate and a key building block in advanced organic synthesis. It is primarily utilized by pharmaceutical, nutraceutical, and specialty chemical manufacturers for developing stabilized formulations and novel bioactive molecules.

Application

• Pharmaceutical Intermediate: Used in the synthesis of tocopherol analogs and other lipid-soluble antioxidant drugs.
• Nutraceutical & Cosmetic Antioxidant: Acts as a precursor for formulating stable, high-potency Vitamin E derivatives and skincare actives.
• Polymer & Plastic Stabilizer: Imparts oxidative stability to sensitive polymers, plastics, and synthetic rubbers.
• Research & Development: Serves as a reference standard and a key reagent in medicinal chemistry and material science research.
• Food & Feed Additive Precursor: Employed in the production of antioxidants for fat and oil preservation.
• Lubricant & Fuel Additive: Enhances the oxidative stability of industrial lubricants and specialty fuels.

Basic Information

Product Name	2,2,5,7,8-Pentamethylchroman
CAS No.	55646-01-0
Molecular Formula	C₁₄H₂₀O
Molecular Weight	204.31 g/mol
Synonyms	2,2,5,7,8-Pentamethyl-6-chromanol; 2,2,5,7,8-Pentamethylchroman-6-ol; PMC; Pentamethylhydroxychroman; 6-Hydroxy-2,2,5,7,8-pentamethylchroman; A chroman antioxidant intermediate
EINECS	Contact for details

Quality Control

Our 2,2,5,7,8-Pentamethylchroman is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Specification available upon request
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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