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Merck
CN

422746

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

98%

Synonym(s):

2-(2-Hydroxy-3,5-di-tert -amylphenyl)-2H -benzotriazole, 2-(2H -Benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)phenol, 2-(3′,5′-Di-tert -amyl-2′-hydroxyphenyl)benzotriazole, 2-(3,5-Di-tert -amyl-2-hydroxyphenyl)-2H -benzotriazole, 2-[2-Hydroxy-3,5-bis(1,1-dimethylpropyl)phenyl]-2H -benzotriazole

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About This Item

Empirical Formula (Hill Notation):
C22H29N3O
CAS Number:
25973-55-1
Molecular Weight:
351.49
NACRES:
NA.23
PubChem Substance ID:
24866449
UNSPSC Code:
12162002
EC Number:
247-384-8
MDL number:
MFCD00134707

Key Documents

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Product Name

2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol, 98%

InChI key

ZMWRRFHBXARRRT-UHFFFAOYSA-N

InChI

1S/C22H29N3O/c1-7-21(3,4)15-13-16(22(5,6)8-2)20(26)19(14-15)25-23-17-11-9-10-12-18(17)24-25/h9-14,26H,7-8H2,1-6H3

SMILES string

CCC(C)(C)c1cc(c(O)c(c1)C(C)(C)CC)-n2nc3ccccc3n2

assay

98%

mp

80-83 °C (lit.)

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Application

UV-328 is a class of benzotriazole derivatives that can potentially be used as corrosion inhibitors in heat resistant fluids in aircraft, brake fluids in automobiles and for other industrial cooling systems.

General description

2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328) is an ultraviolet (UV) stabilizer with a phenolic group connected to the benzotriazole structure. These phenolic groups facilitate the absorption of UV light. UV-328 is mainly used in as a light stabilizer for coating and as an additive for industrial polymers.

pictograms

Health hazard
GHS08

signalword

Warning

hcodes

H373,H413

Hazard Classifications

Aquatic Chronic 4 - STOT RE 2 Oral

target_organs

Liver,Kidney

Storage Class

11 - Combustible Solids

wgk

WGK 2

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKBV6396V
15912KA
05718AG
06119TB
05803TU

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Determination of benzothiazole and benzotriazole derivates in tire and clothing textile samples by high performance liquid chromatography-electrospray ionization tandem mass spectrometry.
Avagyan R, et al.
Journal of Chromatography A, 1307(22), 119-125 (2013)
Corinna Fischer et al.
Toxicology in vitro : an international journal published in association with BIBRA, 68, 104932-104932 (2020-07-12)
The benzotriazole UV stabilizer (BUVS) 2-(5-chloro-benzotriazol-2-yl)-4,6-di-(tert-butyl)phenol (UV-327) is used in various plastic products to protect them against harmful UV radiation. Meanwhile, there are concerns about potential adverse health effects on humans, as residues of UV-327 and other BUVSs have already
Sarah S D Lafleur et al.
Macromolecular rapid communications, 40(9), e1800811-e1800811 (2019-03-07)
Optical patterns are produced on the surface of drawn linear polyethylene containing 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (BZT), a photothermal dye, by direct laser writing. The photothermal dye absorbs the UV light and dissipates heat in the polyethylene film. This heat locally results in
Contamination of benzotriazole ultraviolet stabilizers in house dust from the Philippines: Implications on human exposure.
Kim J, et al.
The Science of the Total Environment, 424, 174-181 (2012)
Stefan Weiss et al.
Analytical chemistry, 77(22), 7415-7420 (2005-11-16)
The first method for the determination of commonly used corrosion inhibitors in environmental water samples by liquid chromatography-electrospray ionization-tandem mass spectrometry is presented. Benzotriazole (BTri) and the two isomers of tolyltriazole (5- and 4-TTri) are separated in an isocratic run.
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