20119-28-2

Basic information

• Product Name: 3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE
• Synonyms: LABOTEST-BB LT00454011;3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE;2-(3,3-dimethyltriazen-1-yl)benzoic acid;NSC140114;3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE 99%;2-(3,3-Dimethyl-1-triazenyl)benzoic acid;2-(3,3-Dimethyltriazene-1-yl)benzoic acid
• CAS NO: 20119-28-2
• Molecular Formula: C₉H₁₁N₃O₂
• Molecular Weight: 193.2
• EINECS: 243-523-1
• Mol File: 20119-28-2.mol
• Article Data: 5

Chemical Properties

• Melting Point: 124-126°C
• Boiling Point: 328.5°Cat760mmHg
• Flash Point: 152.4°C
• Appearance: /
• Density: 1.19g/cm³
• Vapor Pressure: 7.64E-05mmHg at 25°C
• Refractive Index: 1.566
• CAS DataBase Reference: 3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE(20119-28-2)
• EPA Substance Registry System: 3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE(20119-28-2)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36
• Hazardous Substances Data: 20119-28-2(Hazardous Substances Data)

Usage

General Description

3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE, also known as Methyl Red, is a synthetic organic compound primarily used as a pH indicator. It is a red powder that changes color in response to changes in pH, making it useful in various laboratory and industrial applications. Methyl Red is commonly used in microbiology to differentiate between bacteria that produce stable acids and those that do not. It is also used in the textile industry as a dye and in the production of plastics and pharmaceuticals. However, it is important to handle and dispose of 3,3-DIMETHYL-1-(2-CARBOXYPHENYL)TRIAZENE with care, as it is classified as a hazardous substance due to its toxic and potentially carcinogenic properties.

InChI:InChI=1/C9H11N3O2/c1-12(2)11-10-8-6-4-3-5-7(8)9(13)14/h3-6H,1-2H3,(H,13,14)/b11-10+

Upstream product

• 1608-42-0 benzenedizolium-2-carboxylate 
• 68-12-2 N,N-dimethyl-formamide 
• 124-40-3 dimethyl amine 
• 4661-46-5 2-carboxybenzene diazonium chloride 
• 118-92-3 anthranilic acid 

Downstream Products

• 1240-22-8 2-(dimethylcarbamoyl-phenyldisulfanyl)-M,N-dimethylbenzamide 
• 29128-56-1 (E)-2-((2-hydroxynaphthalen- 1-yl)diazenyl)benzoic acid 
• 69-72-7 salicylic acid 
• 89331-40-8 C₁₁H₁₄N₄O₃ 
• 77800-41-0 C₃₄H₂₂S 
• 89331-42-0 C₁₈H₂₀N₄O₃ 
• 89331-41-9 C₁₂H₁₆N₄O₃ 
• 259-79-0 bisbenzocyclobutene 
• 121-69-7 N,N-dimethyl-aniline 
• 130103-61-6 9-pentyl-1-phenylsulfonylbenzindole 
• 130103-62-7 4,9-dimethyl-1-phenylsulfonylbenzindole 
• 130103-60-5 9-Methyl-1-phenylsulphonylbenzindole 
• 130103-43-4 1-phenylsulfonylbenzindole 

Relevant articles and documents

Aryne formation from 1-(3′-Carboxyaryl)-3,3-dim ethyl trianzenes

A study of the decomposition of 1-(2′-carboxyphenyl)-3,3-dimethyltriazene and the tetrabromoand tetrachloro- analogues showed that the arenediazonium-2-carboxylates were intermediates in the formation of the corresponding arynes: the 1-(2′-carboxyteirahalophenyl)-3,3-dimethyltriazenes are stable precursors that enable cycloaddition reactions of the tetrahalobenzynes to be carried out in acceptable yields using substrates such as N-methylpyrrole,p-xylene and m-dimethoxybenzene.

Waste-Free Quantitative Gas/Solid Diazotation Using Nitrogen Dioxide and Triazene Synthesis, Both Avoiding Liquid Phases

Solid diazonium nitrates (2a-j) are quantitatively obtained by reaction of crystalline anilines (1a-j) with gaseous nitrogen dioxide. Solid diazonium salts react quantitatively with dimethylamine to give the triazenes (4a-j). Wastes that are typical for the previous syntheses of these compounds in solution are avoided. Atomic force microscopic (AFM) investigations indicate long-range molecular movements due to phase rebuilding. The features thus formed are related to the known crystal structures of the starting anilines. The diazotations run to completion, because, after accumulation of product molecules, phase transformation to give the product lattices leads to crystal disintegration and thus to formation of fresh surface over and over.

Synthesis of biologically active triazenes from isolable diazoniums salts.

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