1-Chloro-2-ethynylbenzene
1-Chloro-2-ethynylbenzene (CAS: 873-31-4, Formula: ClC6H4C≡CH) is a halogenated aromatic compound with a molecular weight of 136.58 g/mol. This organic building block features both an alkyne and a chloro substituent on a benzene ring, making it a versatile intermediate in organic synthesis. It is primarily utilised in research and development for the creation of more complex molecular structures and speciality chemicals.
- IUPAC
- (2-Chlorophenyl)acetylene
- Synonyms
- (2-Chlorophenyl)acetylene
Organic Synthesis Intermediate
1-Chloro-2-ethynylbenzene serves as a valuable building block in complex organic synthesis. Its reactive ethynyl group and chloro-aryl moiety allow for diverse chemical transformations, enabling the construction of novel molecular architectures.
Pharmaceutical Research
This compound can be employed in the early stages of drug discovery and development. It may be used to synthesise potential therapeutic agents or as a fragment in medicinal chemistry research programmes.
Materials Science
The unique structure of 1-Chloro-2-ethynylbenzene lends itself to applications in materials science, potentially in the development of functional polymers or organic electronic components.
| Molecular weight | 136.58 |
|---|---|
| Linear formula | ClC6H4C≡CH |
| Assay | 98% |
| Boiling point | 82 °C/12 mmHg(lit.) |
| Density | 1.125 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5710(lit.) |
| Storage temperature | 2-8°C |
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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 70 °C / 158 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| 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-Chloro-2-ethynylbenzene used for?
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1-Chloro-2-ethynylbenzene is primarily used as a versatile intermediate in organic synthesis, particularly in research and development for creating complex molecular structures, and may find applications in pharmaceutical research and materials science.
What are the CAS number and formula for 1-Chloro-2-ethynylbenzene?
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The CAS number for 1-Chloro-2-ethynylbenzene is 873-31-4, and its linear formula is ClC6H4C≡CH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Chloro-2-ethynylbenzene with an assay of 98%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeial grade.
How should 1-Chloro-2-ethynylbenzene be handled safely?
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1-Chloro-2-ethynylbenzene is classified with Warning and hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., type ABEK respirator filter), is required. Handle in a well-ventilated area.
Is 1-Chloro-2-ethynylbenzene a controlled substance?
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The provided data does not indicate that 1-Chloro-2-ethynylbenzene is a controlled substance.
How is 1-Chloro-2-ethynylbenzene packed, shipped, and exported?
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1-Chloro-2-ethynylbenzene is typically stored at 2-8°C. Shipping and export comply with relevant regulations, including those for flammable liquids if applicable (Flash Point: 70°C / 158°F).
How can I request a sample or a quote for 1-Chloro-2-ethynylbenzene?
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To request a sample or a quote, please contact the TSS sales department through our website or by phone, providing your specific requirements and shipping details.
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