1,3-Benzodioxole
1,3-Benzodioxole (CAS 274-09-9) is an organic compound with the molecular formula C7H6O2 and a molecular weight of 122.12 g/mol. This chemical, also known as 1,2-(Methylenedioxy)benzene, is primarily utilised as a building block in organic synthesis and chemical research. Its structure allows for diverse chemical transformations, making it a valuable intermediate in the development of more complex molecules.
- IUPAC
- 1,2-(Methylenedioxy)benzene
- Synonyms
- 1,2-(Methylenedioxy)benzene

Organic Synthesis Intermediate
1,3-Benzodioxole serves as a key intermediate in the synthesis of various organic compounds. Its reactive nature allows for functionalisation, enabling the construction of complex molecular architectures for research and development purposes.
Chemical Research and Development
This compound is employed in laboratories for exploring new chemical reactions and pathways. It acts as a versatile reagent for academic and industrial research focused on novel materials and pharmaceuticals.
Building Block for Specialty Chemicals
As an organic building block, 1,3-Benzodioxole is used in the creation of specialty chemicals. Its unique structural features contribute to the development of compounds with specific desired properties.
| Molecular weight | 122.12 |
|---|---|
| Empirical formula | C7H6O2 |
| Assay | ≥99.0% (GC) |
| Boiling point | 172-173 °C(lit.) |
| Density | 1.064 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.539(lit.)n20/D 1.539 |
| Vapour pressure | 12 mmHg (25 °C) |

Hazard statements
- H302Harmful if swallowed
- H332Harmful if inhaled
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 61 °C / 141.8 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/22 |
| Safety statements (S) | 23-24/25 |
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 1,3-Benzodioxole used for?
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1,3-Benzodioxole is primarily used as an intermediate in organic synthesis and as a building block in chemical research and development for creating specialty chemicals.
What is the CAS number and formula for 1,3-Benzodioxole?
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The CAS number for 1,3-Benzodioxole is 274-09-9, and its empirical formula is C7H6O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Benzodioxole with an assay of ≥99.0% (GC). We do not represent this product as USP, BP, or EP grade.
What are the safety and handling recommendations for 1,3-Benzodioxole?
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1,3-Benzodioxole is classified with GHS07, a Warning signal word, and hazards H302 (Harmful if swallowed) and H332 (Harmful if inhaled). Appropriate personal protective equipment includes eyeshields, face shields, and gloves. Ensure adequate ventilation or use a suitable respirator.
How is 1,3-Benzodioxole packed, shipped, and exported?
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1,3-Benzodioxole is carefully packed according to international shipping regulations (UN 1993, Class 3, PGIII) and is available for global export by Tech Serve Solutions.
How can I request a quote or sample for 1,3-Benzodioxole?
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To request a quote or a sample of 1,3-Benzodioxole, please contact our sales team through the website or via direct inquiry.
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