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Merck
CN

422479

2-tert-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol

98%

Synonym(s):

2-(2-Hydroxy-3-tert -butyl-5-methylphenyl)-5-chloro-2H -benzotriazole, 2-(3-tert -Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H -benzotriazole, 2-(5-Chloro-2-benzotriazolyl)-6-tert -butyl-p -cresol, 2-(5-Chloro-2H -benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol, 2-[5-Chloro-2H -benzotriazol-2-yl]-4-methyl-6-(tert -butyl)phenol

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About This Item

Empirical Formula (Hill Notation):
C17H18ClN3O
CAS Number:
3896-11-5
Molecular Weight:
315.80
NACRES:
NA.23
PubChem Substance ID:
24866434
UNSPSC Code:
12162002
EC Number:
223-445-4
MDL number:
MFCD00059707

Key Documents

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InChI key

OCWYEMOEOGEQAN-UHFFFAOYSA-N

InChI

1S/C17H18ClN3O/c1-10-7-12(17(2,3)4)16(22)15(8-10)21-19-13-6-5-11(18)9-14(13)20-21/h5-9,22H,1-4H3

SMILES string

Cc1cc(c(O)c(c1)C(C)(C)C)-n2nc3ccc(Cl)cc3n2

assay

98%

mp

144-147 °C (lit.)

Quality Level

100

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Related Categories

Application

UV absorber
UV-326 can potentially be used as a UV light filter in cosmetics and sunscreens. It may also be used as a corrosion inhibitor for the protection of building materials and automobiles.

General description

2-tert-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol (UV-326) is a benzotriazole based UV absorber that can be used in the photostabilization of industrial materials. It can absorb the harmful UV radiation for the wavelength of about 290 nm.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB2066
STBL2404
STBL3282
STBK7200
STBK4908

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Behaviour of nanoparticle (ultrafine) titanium dioxide pigments and stabilisers on the photooxidative stability of water based acrylic and isocyanate based acrylic coatings
Allen NS, et al.
Polymer Degradation and Stability, 78(3), 467-478 (2002)
T H Begley et al.
Food additives and contaminants, 21(10), 1007-1014 (2005-02-17)
The migration characteristics of the UV stabilizer Tinuvin 234 (2-(2H-benzotriazol-2-yl)-4,6-bis (1-methyl-1-phenylethyl)phenol) into food simulants has been measured from polyethylene terephthalate (PET) using HPLC with UV detection. Ethanol/ water, isooctane and a fractionated coconut oil simulant (Miglyol) were used as food
Juzhou Zhang et al.
Se pu = Chinese journal of chromatography, 30(2), 190-195 (2012-06-12)
An effective high performance liquid chromatographic (HPLC) method has been developed for the simultaneous determination of 9 ultraviolet stabilizers in food plastic packaging materials. The food packaging samples were firstly extracted by methanol-ethyl acetate, and then purified by a C18
Pai-Lung Chou et al.
Bioresource technology, 99(5), 1073-1079 (2007-04-21)
Photodiscoloration of clear-coated wood may be caused by the yellowing of both clear coating film and underlying wood, or either of them. Wood specimens covered with two types of free polyurethane films with/without light stabilizer were used to simulate the
Zhe Lu et al.
Water research, 124, 158-166 (2017-08-02)
Substituted diphenylamine antioxidants (SDPAs) and benzotriazole UV stabilizers (BZT-UVs) are additives used in industrial and consumer products to prevent degradation or color change of materials, but their environmental fate and disposition are not well characterized. In this study, SDPAs and
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