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1-Propargyl-1H-benzotriazole

CAS 142321-23-1C9H7N3Chemical Synthesis

1-Propargyl-1H-benzotriazole (CAS: 142321-23-1, Formula: C9H7N3) is a valuable organic compound with a molecular weight of 157.17 g/mol. It functions as a key reactant in various synthetic transformations, notably in C-C bond formation and the synthesis of complex molecules. Its utility spans across chemical synthesis, serving as a versatile building block for advanced chemical research and development, including the creation of potential antibacterial agents.

IUPAC
1-(2-Propynyl)-1H-benzotriazole
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1-Propargyl-1H-benzotriazole (C9H7N3) — chemical structure, CAS 142321-23-1; Chemistry, fine chemical supplied by Tech Serve Solutions
C-C Bond FormationChemical SynthesisOthersSynthetic Reagents
01 /Applications

Preparation of Antibacterial Agents

1-Propargyl-1H-benzotriazole serves as a reactant in the preparation of clarithromycin analogs. This application leverages click chemistry to develop novel antibacterial agents.

Sonogashira Coupling Reactions

This compound is employed as a reactant in Sonogashira coupling reactions, a fundamental process for forming carbon-carbon bonds between terminal alkynes and aryl or vinyl halides.

Bronsted Superacid-Catalyzed Reactions

It acts as a reactant in processes mediated by Bronsted superacids, showcasing its utility in advanced organic synthesis where strong acidic conditions are required.

Hydroboration and Hydrostannylation

1-Propargyl-1H-benzotriazole is utilised as a reactant in hydroboration and hydrostannylation reactions, which are important for introducing boron and tin functionalities into organic molecules.

02 /Properties
Molecular weight157.17
Empirical formulaC9H7N3
Assay96%
ApplicationReactant for:• Preparation of clarithromycin analogs via click chemistry as antibacterial agents1• Sonogashira coupling2• Bronsted superacid-catalyzed reactions3• Hydroboration and hydrostannylation reactions4
Melting point52-56 °C(lit.)
03 /Safety & handling
GHS hazard pictogram: Harmful / irritant (GHS07)
Harmful / irritant
Warning

Hazard statements

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
Protective equipmentdust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)3
Hazard codes (EU)Xi
Risk statements (R)36/37/38
Safety statements (S)26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
142321-23-1
MDL number
MFCD00274645
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 1-Propargyl-1H-benzotriazole used for?

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1-Propargyl-1H-benzotriazole is used as a reactant in chemical synthesis, including preparations for clarithromycin analogs, Sonogashira coupling, Bronsted superacid-catalyzed reactions, and hydroboration/hydrostannylation reactions.

What is the CAS number and formula for 1-Propargyl-1H-benzotriazole?

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The CAS number is 142321-23-1, and its empirical formula is C9H7N3.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies 1-Propargyl-1H-benzotriazole with an assay of 96%. TSS does not represent this product as USP, BP, or EP grade.

How should 1-Propargyl-1H-benzotriazole be handled?

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Handle 1-Propargyl-1H-benzotriazole with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation to avoid inhalation of dust (H335).

Is 1-Propargyl-1H-benzotriazole subject to any special regulations?

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Based on the provided data, 1-Propargyl-1H-benzotriazole is classified as an irritant (H315, H319, H335) with hazard codes Xi. It is not indicated as a controlled substance.

How is 1-Propargyl-1H-benzotriazole supplied and exported?

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1-Propargyl-1H-benzotriazole is available from Tech Serve Solutions, a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.

How can I request a quote or sample?

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To request a quote or sample of 1-Propargyl-1H-benzotriazole, please contact the Tech Serve Solutions sales team through our website or designated contact channels.

Need 1-Propargyl-1H-benzotriazole in a specific grade or volume?