1-(α-Chloroacetyl)-1H-benzotriazole
1-(α-Chloroacetyl)-1H-benzotriazole (CAS: 50531-70-9; Formula: C8H6ClN3O; MW: 195.61) is a halogenated heterocyclic compound. It serves as a versatile building block and synthetic reagent in organic chemistry. Primarily utilised in C-C bond formation and general chemical synthesis, this compound is valuable for introducing the chloroacetylbenzotriazole moiety into various molecular structures, facilitating the creation of complex organic molecules.

Organic Synthesis Intermediate
1-(α-Chloroacetyl)-1H-benzotriazole acts as a key intermediate in the synthesis of more complex organic compounds. Its reactive chloroacetyl group allows for facile derivatisation and incorporation into diverse molecular frameworks.
Building Block for Heterocycles
This compound is employed as a building block for the construction of various heterocyclic systems. The benzotriazole core, coupled with the reactive chloroacetyl substituent, enables its use in cyclisation reactions and the formation of novel heterocyclic architectures.
Reagent in C-C Bond Formation
The chloroacetyl moiety offers reactivity suitable for carbon-carbon bond-forming reactions. It can participate in alkylation and acylation reactions, contributing to the assembly of carbon skeletons in synthetic pathways.
| Molecular weight | 195.61 |
|---|---|
| Empirical formula | C8H6ClN3O |
| Melting point | 97-101 °C(lit.) |

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 equipment | dust 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.
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.
What is 1-(α-Chloroacetyl)-1H-benzotriazole used for?
+
1-(α-Chloroacetyl)-1H-benzotriazole is primarily used as a building block and synthetic reagent in organic chemistry, particularly for C-C bond formation and the synthesis of heterocyclic compounds.
What are the CAS number and formula for 1-(α-Chloroacetyl)-1H-benzotriazole?
+
The CAS number for 1-(α-Chloroacetyl)-1H-benzotriazole is 50531-70-9, and its molecular formula is C8H6ClN3O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1-(α-Chloroacetyl)-1H-benzotriazole with a purity of 97% minimum. TSS does not represent this product as USP, BP, or EP grade; it is supplied for research and development purposes.
How should 1-(α-Chloroacetyl)-1H-benzotriazole be handled?
+
Handle 1-(α-Chloroacetyl)-1H-benzotriazole with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and avoid inhalation of dust, skin contact, and eye contact, as it may cause skin irritation (H315), eye irritation (H319), and respiratory irritation (H335).
Is 1-(α-Chloroacetyl)-1H-benzotriazole a controlled substance?
+
The provided data does not indicate that 1-(α-Chloroacetyl)-1H-benzotriazole is a controlled substance.
How is 1-(α-Chloroacetyl)-1H-benzotriazole packed and shipped?
+
1-(α-Chloroacetyl)-1H-benzotriazole is packed securely for global export. Specific packaging details and shipping options can be provided upon request.
How can I request a sample or quote for 1-(α-Chloroacetyl)-1H-benzotriazole?
+
To request a sample or a quotation for 1-(α-Chloroacetyl)-1H-benzotriazole, please contact the TSS sales team through our website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis