2,3-Dimethoxybenzaldehyde
2,3-Dimethoxybenzaldehyde (CAS 86-51-1) is a key organic building block with the molecular formula C9H10O3 and a molecular weight of 166.17 g/mol. This aromatic aldehyde, characterised by two methoxy groups on the benzene ring, serves as a valuable intermediate in chemical synthesis. Its utility spans the creation of more complex molecules, particularly in the pharmaceutical and fine chemical industries, leveraging its reactive aldehyde functional group.
- Synonyms
- (CH3O)2C6H3CHO

Pharmaceutical Intermediate
2,3-Dimethoxybenzaldehyde is employed in the synthesis of various pharmaceutical compounds. It acts as a crucial starting material or intermediate in multi-step organic syntheses, contributing to the development of active pharmaceutical ingredients (APIs).
Fine Chemical Synthesis
As a versatile building block, this compound is utilised in the broader field of fine chemical manufacturing. It enables the construction of diverse organic structures for research and industrial applications.
Organic Synthesis Reagent
The aldehyde functionality makes 2,3-Dimethoxybenzaldehyde a useful reagent in organic chemistry. It participates in reactions such as condensations, reductions, and oxidations to form new carbon-carbon and carbon-heteroatom bonds.
| Molecular weight | 166.17 |
|---|---|
| Linear formula | (CH3O)2C6H3CHO |
| Assay | 98% |
| Boiling point | 137 °C/12 mmHg(lit.) |
| Melting point | 48-52 °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 |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| 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 2,3-Dimethoxybenzaldehyde used for?
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2,3-Dimethoxybenzaldehyde (CAS 86-51-1) is primarily used as a building block and intermediate in the synthesis of pharmaceuticals and other fine chemicals. It is a valuable reagent in organic synthesis for creating more complex molecular structures.
What is the CAS number and chemical formula for 2,3-Dimethoxybenzaldehyde?
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The CAS number for 2,3-Dimethoxybenzaldehyde is 86-51-1, and its linear chemical formula is (CH3O)2C6H3CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dimethoxybenzaldehyde with an assay of 98%. This product is typically considered a technical or research grade, and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for 2,3-Dimethoxybenzaldehyde?
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According to GHS information, 2,3-Dimethoxybenzaldehyde is a Warning substance (GHS07). It is classified with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area and avoid breathing dust.
How is 2,3-Dimethoxybenzaldehyde typically packed and shipped?
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2,3-Dimethoxybenzaldehyde is carefully packed to ensure stability during transit and is available for export globally by Tech Serve Solutions.
How can I request a sample or a quote for 2,3-Dimethoxybenzaldehyde?
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To request a sample or obtain a quotation for 2,3-Dimethoxybenzaldehyde, please contact the Tech Serve Solutions sales team through the website or by phone.
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