Description

1H-Benzotriazole-4-Carbonyl Chloride (9Ci) is a high-purity, reactive organic intermediate essential for advanced chemical synthesis. This compound matters as a key building block for constructing complex heterocyclic molecules, particularly in the development of active pharmaceutical ingredients (APIs) and specialty agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries seeking to introduce the benzotriazole-carbonyl moiety into target structures.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting specific enzymes or receptors.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides with improved efficacy.
• Peptide Coupling Reagent: Functions as an activating agent for carboxylic acids in peptide bond formation and other amidation reactions.
• Ligand and Catalyst Precursor: Serves as a starting material for creating specialized ligands used in metal-catalyzed transformations.
• Polymer Modification: Employed to introduce functional benzotriazole groups into polymer backbones for UV stabilization or to alter material properties.
• Organic Synthesis Building Block: Enables the construction of complex heterocyclic frameworks in academic and industrial research settings.

Basic Information

Product Name	1H-Benzotriazole-4-Carbonyl Chloride (9Ci)
CAS No.	342617-11-2
Molecular Formula	C7H4ClN3O
Molecular Weight	181.58 g/mol
Synonyms	1H-1,2,3-Benzotriazole-4-carbonyl chloride; 4-(Chlorocarbonyl)-1H-benzotriazole; Benzotriazole-4-carbonyl chloride; 1H-Benzotriazole-4-carboxylic acid chloride; 4-Carboxybenzotriazole chloride; BTAC; 342617-11-2 (CAS)
EINECS	Contact for details

Quality Control

Our 1H-Benzotriazole-4-Carbonyl Chloride is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets the high standards required for sensitive synthetic applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.