5-Methylbenzotriazole

About 5-Methylbenzotriazole

5-Methylbenzotriazole is an azole building block carrying the CAS registry number 136-85-6. Its molecular formula is C7H7N3 and its molecular weight is 133.15 g/mol. Its systematic (IUPAC) name is 5-methyl-2H-benzotriazole. Alternative names: 5-Methyl-1H-benzotriazole and 5-Tolyltriazole.

Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Available in 100 mg, 250 mg, 1 g and 5 g packs, 5-Methylbenzotriazole is dispatched with a Certificate of Analysis (COA) to destinations worldwide. SDS and detailed specification sheets can be requested with your quotation. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	5-Methylbenzotriazole
Catalogue No.	VQ-040719
CAS Number	136-85-6
IUPAC name	5-methyl-2H-benzotriazole
Molecular formula	C₇H₇N₃
Molecular weight	133.15 g/mol
Exact mass	133.064
HSN code	2933
InChIKey	LRUDIIUSNGCQKF-UHFFFAOYSA-N
SMILES	CC1=CC2=NNN=C2C=C1
PubChem CID	8705

Physical properties
Physical form	Other
LogP (XLogP3)	1.4
H-bond donors / acceptors	1 / 2
TPSA	41.6 Å²
Synonyms	5-Methyl-1H-benzotriazole, 5-Tolyltriazole, 6-Methylbenzotriazole, 5-Methyl-1,2,3-benzotriazole, 6-Methyl-1,2,3-benzotriazole, 1H-Benzotriazole, 6-methyl-, 5-Methyl-1H-benzo[d][1,2,3]triazole, 6-tolyltriazole, Retrocure G (Salt/Mix), 5-Methyl-1H-benzotriazole, Pract., 5-Methyl-1H-benzo-1,2,3-triazole, 6-Methyl-1H-benzotriazole

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P363, P403 + P233

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 5-Methylbenzotriazole?

The CAS Registry Number of 5-Methylbenzotriazole is 136-85-6. It is also known as 5-Methyl-1H-benzotriazole, 5-Tolyltriazole, 6-Methylbenzotriazole.

What is the molecular formula and molecular weight of 5-Methylbenzotriazole?

5-Methylbenzotriazole has the molecular formula C7H7N3 and a molecular weight of 133.15 g/mol. Its IUPAC name is 5-methyl-2H-benzotriazole.

Which grade and pack sizes of 5-Methylbenzotriazole can I order?

We supply 5-Methylbenzotriazole, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Methylbenzotriazole?

Yes. Every lot of 5-Methylbenzotriazole is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 5-Methylbenzotriazole be shipped internationally?

Yes. 5-Methylbenzotriazole is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.