5-Chloro-1,3-benzodioxole
5-Chloro-1,3-benzodioxole (CAS: 7228-38-8), with the molecular formula C7H5ClO2 and a molecular weight of 156.57 g/mol, is a useful organic building block. This compound is primarily employed in chemical synthesis and organic chemistry research. Its structure, featuring a chlorinated benzodioxole core, makes it a valuable intermediate for constructing more complex molecules. Tech Serve Solutions supplies this chemical with a purity of 98%.
- Synonyms
- C7H5ClO27228-38-8

Organic Synthesis Intermediate
5-Chloro-1,3-benzodioxole serves as a versatile intermediate in the synthesis of various organic compounds. Its chlorinated benzodioxole moiety can be incorporated into larger molecular structures through different chemical transformations.
Research and Development
This compound is utilised in research laboratories for exploring novel synthetic pathways and developing new chemical entities. Its specific structure is of interest in academic and industrial R&D settings.
Building Block for Complex Molecules
As an organic building block, 5-Chloro-1,3-benzodioxole facilitates the construction of complex organic molecules, including potential pharmaceutical candidates and fine chemicals.
| Molecular weight | 156.57 |
|---|---|
| Empirical formula | C7H5ClO2 |
| Assay | 98% |
| Boiling point | 185-187 °C(lit.) |
| Density | 1.34 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.556(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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 94 °C / 201.2 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 5-Chloro-1,3-benzodioxole used for?
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5-Chloro-1,3-benzodioxole is primarily used as an intermediate in organic synthesis and as a building block in chemical research and development for constructing more complex molecules.
What is the CAS number and formula for 5-Chloro-1,3-benzodioxole?
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The CAS number for 5-Chloro-1,3-benzodioxole is 7228-38-8, and its empirical formula is C7H5ClO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Chloro-1,3-benzodioxole with an assay of 98%. This product is not represented as USP, BP, or EP grade.
How should 5-Chloro-1,3-benzodioxole be handled safely?
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5-Chloro-1,3-benzodioxole is classified with GHS07 symbol and a 'Warning' signal word. It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and gloves, should be worn, and handling should occur in a well-ventilated area.
How is 5-Chloro-1,3-benzodioxole packed, shipped, and exported?
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Tech Serve Solutions professionally packs, ships, and exports fine chemicals globally, adhering to all necessary regulations for safe and secure transport.
How can I request a sample or quote for 5-Chloro-1,3-benzodioxole?
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To request a sample or a quote for 5-Chloro-1,3-benzodioxole, please contact our sales team through the website or direct inquiry.
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