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533203

Sigma-Aldrich

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

97%

Synonym(s):

2-(2H-Benzotriazol-2-yl)-p-cresol

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About This Item

Empirical Formula (Hill Notation):
C13H11N3O
CAS Number:
2440-22-4
Molecular Weight:
225.25
EC Number:
219-470-5
MDL number:
MFCD00022903
UNSPSC Code:
12352005
PubChem Substance ID:
24877544
NACRES:
NA.22

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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Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H317,H410

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

Certificates of Analysis (COA)

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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
[Hygienic chemical studies on plastics (VIII). Migration test of methyl methacrylate and plastic additives from polymethyl methacrylate (author's transl)].
T Inoue et al.
Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences, 99, 144-147 (1981-01-01)
[Determining the levels of benazol II in environmental objects].
F M Fazlieva et al.
Gigiena i sanitariia, (3)(3), 82-83 (1991-03-01)
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
B Björkner et al.
American journal of contact dermatitis : official journal of the American Contact Dermatitis Society, 8(1), 6-7 (1997-03-01)
A case of contact allergy to the UV absorber Tinuvin P is described in a patient with gingivitis who was previously treated with a dental restorative material. With high-performance liquid chromatography analysis, the presence of Tinuvin P could be shown
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