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: Ultraviolet absorber UV-328, Tinuvin 328, 2-(2-Hydroxy-3,5-dipentylphenyl)benzotriazole, 2-(2-Hydroxy-3,5-diamylphenyl)benzotriazole, 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol, 2-(2H-BENZOTRIAZOL-2-YL)-4,6-DI-T-PENTYLPHENOL, EINECS 247-384-8, MFCD00142737

2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (CAS 21615-49-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C22H29N3O and a molecular weight of 351.48500 g/mol. It is also known as Ultraviolet absorber UV-328, Tinuvin 328 and 2-(2-Hydroxy-3,5-dipentylphenyl)benzotriazole. Key properties include a melting point of 80-83ºC, a boiling point of 515.122ºC at 760 mmHg, a density of 1.109 g/cm3 and a flash point of 265.337ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21615-49-6
Jingsj CID
J-1355854-1
Molecular Formula
C22H29N3O
Chinese Name
2-(2H-苯并三唑-2-基)-4,6-二叔戊基苯酚
Molecular Weight
351.48500 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point80-83ºC
Boiling Point515.122ºC at 760 mmHg
Density1.109 g/cm3
Flash Point265.337ºC

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 21615-49-6.

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 351.48500 g/mol.

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 21615-49-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1355854-1 (accessed 2026-10-25).

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