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422479

Sigma-Aldrich

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
EC Number:
223-445-4
MDL number:
MFCD00059707
UNSPSC Code:
12162002
PubChem Substance ID:
24866434
NACRES:
NA.23

Quality Level

100

Assay

98%

mp

144-147 °C (lit.)

SMILES string

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

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

InChI key

OCWYEMOEOGEQAN-UHFFFAOYSA-N

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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.

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Occurrence and removal of benzotriazoles and ultraviolet filters in a municipal wastewater treatment plant
Liu Y, et al.
Environmental Pollution (Barking, Essex : 1987), 165(9), 225-232 (2012)
D V Spyropoulos
Food additives and contaminants, 15(3), 362-369 (1998-07-17)
The stability of five additives used in the manufacture of plastics materials intended to be in contact with foodstuffs was tested in two EU aqueous food simulants (3% acidic acid and 15% ethanol), in olive oil and in two alternative
C Redbrake et al.
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 231(4), 238-241 (1993-04-01)
We investigated the kind of reactions that occur after injection of a PMMA lens powder into the back skin of rabbit. The lens powder was suspended in NaCl and incomplete Freund's adjuvant to reinforce the immunological reaction. The ELISA test
Determination of benzotriazole and benzophenone UV filters in sediment and sewage sludge
Zhang Z, et al.
Environmental Science & Technology, 45(9), 3909-3916 (2011)
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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