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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)
Contact allergy to Tinuvin P.
A C de Groot et al.
Contact dermatitis, 9(4), 324-325 (1983-07-01)
Y Ikarashi et al.
Contact dermatitis, 30(4), 226-230 (1994-04-01)
The contact sensitizing potential of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole (Tinuvin P) was investigated using the murine local lymph node assay (LLNA) and the mouse ear swelling test with some modification in the induction procedure (modified MEST). Topical exposure of the ears to Tinuvin
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