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Product Line: Pharmaceutical Chemicals

1,2,2,6,6-Pentamethyl-4-piperidinol

CAS 2403-89-6

Molecular structure of 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS · 2403-89-6

01

Product Overview

1,2,2,6,6-Pentamethyl-4-piperidinol is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

02

Product Specifications

Appearance: White flaky solid
Purity: 99% min
Light Transmittance: 425nm: 97% min 450nm: 98% min
Water: 0.5% max
Hazen: 20 max
Melting Point Range: 70–76℃
Formaldehyde Residue: 100ppm max
03

Applications

 

1. Hindered Amine Light Stabilizer (HALS) Precursor

Acts as a key intermediate in the synthesis of HALS compounds.

HALS are used to prevent polymer degradation caused by UV exposure and oxidative processes.

Commonly applied in plastics, coatings, and fibers.

2. Polymer Stabilization

Final HALS products derived from this compound are added to polymers such as polypropylene (PP), polyethylene (PE), polyurethanes, polyesters, and PVC to enhance their resistance to UV light and extend service life.

Helps in maintaining mechanical properties, color stability, and appearance under long-term sun exposure.

3. Industrial Coatings and Paints

Used in the formulation of automotive, industrial, and architectural coatings.

Helps coatings resist cracking, gloss loss, and chalking due to UV degradation.

04

Benefits

High UV Resistance (as HALS derivative): Effectively protects polymers from photodegradation by scavenging free radicals.

Thermally Stable: Suitable for high-temperature polymer processing.

Non-Yellowing: Ideal for light-colored and transparent products.

Improves Durability: Enhances weathering resistance and extends material lifespan.

05

Conclusion

1,2,2,6,6-Pentamethyl-4-piperidinol (CAS 2403-89-6) is a crucial intermediate for HALS production, widely used in UV stabilization of plastics and coatings. By helping prevent polymer degradation from sunlight and heat, this compound supports the manufacturing of durable, long-lasting materials in the automotive, construction, and packaging industries.

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