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422746

Sigma-Aldrich

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
EC Number:
247-384-8
MDL number:
MFCD00134707
UNSPSC Code:
12162002
PubChem Substance ID:
24866449
NACRES:
NA.23

assay

98%

mp

80-83 °C (lit.)

SMILES string

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

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

InChI key

ZMWRRFHBXARRRT-UHFFFAOYSA-N

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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.

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.

pictograms

Health hazard
GHS08

signalword

Warning

Hazard Classifications

Aquatic Chronic 4 - STOT RE 2 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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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)
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)
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
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.
Multiresidue analytical method for the determination of antimicrobials, preservatives, benzotriazole UV stabilizers, flame retardants and plasticizers in fish using ultra high performance liquid chromatography coupled with tandem mass spectrometry.
Kim J, et al.
Journal of Chromatography A, 1218(22), 3511-3520 (2011)
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