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Merck
CN

196304

5-Methyl-1H-benzotriazole

98%

Synonym(s):

5-Methyl-1,2,3-benzotriazole, 5-Methylbenzotriazole, 5-Tolyltriazole, 6-Methyl-1,2,3-benzotriazole, 6-Methyl-1H-benzotriazole, 6-Tolyltriazole

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About This Item

Empirical Formula (Hill Notation):
C7H7N3
CAS Number:
136-85-6
Molecular Weight:
133.15
Beilstein:
116658
EC Number:
205-265-8
MDL number:
MFCD00005702
UNSPSC Code:
12352100
PubChem Substance ID:
24851750
NACRES:
NA.22

Key Documents

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Quality Level

200

Assay

98%

form

powder

bp

210-212 °C/12 mmHg (lit.)

mp

80-82 °C (lit.)

SMILES string

Cc1ccc2[nH]nnc2c1

InChI

1S/C7H7N3/c1-5-2-3-6-7(4-5)9-10-8-6/h2-4H,1H3,(H,8,9,10)

InChI key

LRUDIIUSNGCQKF-UHFFFAOYSA-N

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General description

5-Methyl-1H-benzotriazole is an active component of aircraft deicing and anti-icing fluid. It prevents the corrosion of copper and brass in a variety of corrosive environments.

Application

5-Methyl-1H-benzotriazole was used in determination of benzothiazoles and benzotriazoles in waste water samples by GC-MS.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ0606
MKCX0321
MKCV7937
MKCX0320
MKCV7686

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Corrosion inhibition of copper by tolyltriazole.
Walker R.
Corrosion (Houston, TX, United States), 32(8), 339-341 (1976)
Carmen Domínguez et al.
Journal of chromatography. A, 1230, 117-122 (2012-02-18)
Benzothiazoles (BTHs) and benzotriazoles (BTRs) belong to a high production volume chemicals widely used in both industrial and household applications. Since they are recalcitrant to biodegradation, they are widespread in the environment. However, the BTHs and BTRs determination in environmental
Devon A Cancilla et al.
Environmental toxicology and chemistry, 22(1), 134-140 (2002-12-31)
This paper presents the results of a number of field and laboratory studies to evaluate the environmental impact of aircraft deicing and anti-icing fluids (ADAFs) on aquatic systems. Both 5-methyl-1H-benzotriazole (5-MeBt) and 4-methyl-1H-benzotriazole (4-MeBt), known additives to ADAFs, were found
Rozanna Avagyan et al.
Environmental science and pollution research international, 22(8), 5842-5849 (2014-10-25)
Textiles play an important role in our daily life, and textile production is one of the oldest industries. In the manufacturing chain from natural and/or synthetic fibers to the final clothing products, the use of many different chemicals is ubiquitous.

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