533203
2-(2-Hydroxy-5-methylphenyl)benzotriazole
97%
Synonym(s):
2-(2H-Benzotriazol-2-yl)-p-cresol
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All Photos(2)
About This Item
Empirical Formula (Hill Notation):
C13H11N3O
CAS Number:
Molecular Weight:
225.25
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22
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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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Related Categories
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 1 - Skin Sens. 1B
Storage Class Code
11 - Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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B Niklasson et al.
Contact dermatitis, 21(5), 330-334 (1989-11-01)
Contact allergy to the UV-absorber 2-(2-hydroxy-5-methylphenyl)benzotriazole (Tinuvin P) was revealed in a patient with wrist dermatitis caused by a plastic watch strap. A high-performance liquid chromatography method was developed and subsequent chemical analysis showed the presence of Tinuvin P in
K Arisu et al.
Contact dermatitis, 26(5), 311-316 (1992-05-01)
We report a 54-year-old female with allergic contact dermatitis from 2-(2-hydroxy-5-methylphenyl)benzotriazole (Tinuvin P) in a spandex tape sewn into underwear. Tinuvin P is used as an ultraviolet light absorber for stabilizing plastics and the other organic materials against discoloration and
Allergic contact dermatitis from an ostomy bag.
E van Hecke et al.
Contact dermatitis, 18(2), 121-122 (1988-02-01)
Contact allergy to Tinuvin P.
A C de Groot et al.
Contact dermatitis, 9(4), 324-325 (1983-07-01)
Hiroshi Tokunaga et al.
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku = Bulletin of National Institute of Health Sciences, (120)(120), 98-100 (2003-03-18)
2-(2'-hydroxy-5'-methylphenyl)-benzotriazole (HMB) is nominated as the restricted ingredients in cosmetics in Japanese Pharmaceutical Affairs Act. So the analytical method for HMB was investigated by HPLC. After dissolving HMB in cream or oil with tetrahydrofuran and making the constant volume with
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