Description

1H-Benzotriazole-5-Carbonyl Chloride (9Ci) is a versatile and highly reactive chemical building block, specifically an acid chloride derivative of a benzotriazole carboxylic acid. This compound matters as a critical intermediate for synthesizing complex molecules, enabling the introduction of the benzotriazole moiety which is valued for its corrosion inhibition and pharmacological properties. It is primarily needed by research chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for creating new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those targeting central nervous system disorders and infectious diseases.
• Agrochemical Synthesis: Used in the production of advanced fungicides, herbicides, and plant growth regulators that require the benzotriazole scaffold.
• Corrosion Inhibitor Precursor: Serves as a starting material for manufacturing high-performance corrosion inhibitors used in cooling water systems and metalworking fluids.
• Polymer Chemistry: Employed to create functional monomers and polymers with enhanced UV stability and material properties.
• Peptide Mimetics & Bioconjugation: Facilitates the creation of peptide analogs and tools for bioconjugation in biochemical research.
• Organic Synthesis & Research: A fundamental reagent in academic and industrial R&D labs for constructing complex heterocyclic compounds and exploring new chemical reactions.

Basic Information

Product Name	1H-Benzotriazole-5-Carbonyl Chloride (9Ci)
CAS No.	46053-85-4
Molecular Formula	C7H4ClN3O
Molecular Weight	181.58 g/mol
Synonyms	1H-Benzotriazole-5-carbonyl chloride; 5-(Chlorocarbonyl)-1H-benzotriazole; Benzotriazole-5-carbonyl chloride; 1H-1,2,3-Benzotriazole-5-carbonyl chloride; 5-Carboxybenzotriazole chloride; BTAC; 46053-85-4 (CAS)
EINECS	Contact for details

Quality Control

Our 1H-Benzotriazole-5-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as an acid chloride, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Assay (Titration)	95.0 - 102.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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