Merck
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533203

Sigma-Aldrich

2-(2-Hydroxy-5-methylphenyl)benzotriazole

97%

Synonym(s):
2-(2H-Benzotriazol-2-yl)-p-cresol
Empirical Formula (Hill Notation):
C13H11N3O
CAS Number:
Molecular Weight:
225.25
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

reaction suitability

reaction type: C-C Bond Formation

mp

125.5-129.5 °C (lit.)

SMILES string

Cc1ccc(O)c(c1)-n2nc3ccccc3n2

InChI

1S/C13H11N3O/c1-9-6-7-13(17)12(8-9)16-14-10-4-2-3-5-11(10)15-16/h2-8,17H,1H3

InChI key

MCPKSFINULVDNX-UHFFFAOYSA-N

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Application

Intermediate reactant in the synthesis of UV light absorbers for polyester fibers

Reactant for synthesis of:
  • Benzotriazole UV absorbers with a blocked hydroxy group for us in UV curable paint
  • Maleimide-bound benzotriazole monomer to use for emulsion polymerization

Used in:
  • Microstereophotolithography and shape memory alloy for fabrication of miniaturized actuators
  • PVS and wood / PVC composites as a stabilizer
  • Acrylonitrile-butadiene-styrene as a UV absorber

Packaging

25 g in glass bottle

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Hazard Classifications

Aquatic Chronic 1 - Skin Sens. 1B

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

Certificate of Analysis

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Certificate of Origin

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