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2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol

2-(2H-苯并三唑-2-基)-4,6-二叔戊基苯酚

Also known as: UV-328, Tinuvin 328, Ultraviolet absorbent UV-328, 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole, 2-(2H-Benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)phenol, Cyasorb UV-2337, 2-(2H-Benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol, Benzotriazole UV 328

2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (CAS 25973-55-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C22H29N3O and a molecular weight of 351.485 g/mol. It is also known as UV-328, Tinuvin 328 and Ultraviolet absorbent UV-328. Key properties include a melting point of 80-83°C, a boiling point of 469.1±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 237.5±31.5 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25973-55-1
Jingsj CID
J-1515491-6
Molecular Formula
C22H29N3O
Chinese Name
2-(2H-苯并三唑-2-基)-4,6-二叔戊基苯酚
Molecular Weight
351.485 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point80-83°C
Boiling Point469.1±55.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point237.5±31.5 °C

GHS Safety & Compliance

Health HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol?

The CAS number of 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol is 25973-55-1.

What are the molecular formula and molecular weight of 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol?

2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol has molecular formula C22H29N3O and molecular weight 351.485 g/mol.

Is 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol hazardous?

2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (CAS 25973-55-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515491-6 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.