2-Hydroxy-4-methoxybenzaldehyde
2-Hydroxy-4-methoxybenzaldehyde (CAS: 673-22-3, Formula: HOC6H3(OCH3)CHO, MW: 152.15) is a valuable organic compound utilised as a building block in chemical synthesis. Possessing both aldehyde and phenolic functionalities, it serves as a versatile intermediate for creating more complex molecules. This aromatic aldehyde is commonly employed in research and development settings for its reactive properties, contributing to advancements in materials science and medicinal chemistry.
- IUPAC
- 4-Methoxysalicylaldehyde
- Synonyms
- 4-Methoxysalicylaldehyde

Organic Synthesis Intermediate
Serves as a crucial intermediate in the synthesis of various organic compounds, including pharmaceuticals, agrochemicals, and specialty chemicals. Its reactive aldehyde group and phenolic hydroxyl allow for diverse chemical transformations.
Building Block for Fine Chemicals
Utilised as a fundamental building block in the preparation of more complex molecules. Its specific functional groups enable targeted reactions for the creation of fine chemicals with desired properties.
Research and Development
Employed in laboratory settings for academic and industrial research, facilitating the exploration of new synthetic pathways and the development of novel compounds. Its well-defined structure makes it suitable for reaction mechanism studies.
| Molecular weight | 152.15 |
|---|---|
| Linear formula | HOC6H3(OCH3)CHO |
| Assay | 98% |
| Melting point | 41-43 °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-Hydroxy-4-methoxybenzaldehyde used for?
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2-Hydroxy-4-methoxybenzaldehyde (CAS: 673-22-3) is primarily used as an intermediate and building block in organic synthesis for research and development purposes, contributing to the creation of fine chemicals and potentially pharmaceuticals.
What are the CAS number and chemical formula for 2-Hydroxy-4-methoxybenzaldehyde?
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The CAS number is 673-22-3, and the chemical formula is HOC6H3(OCH3)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-4-methoxybenzaldehyde with a purity of 98% (assay). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2-Hydroxy-4-methoxybenzaldehyde be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. Ensure good ventilation. This compound is classified with GHS07 (Warning) and has hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation).
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions carefully packs and ships 2-Hydroxy-4-methoxybenzaldehyde in compliance with all relevant regulations. We are experienced global exporters of fine chemicals and laboratory reagents.
How can I request a quote or sample?
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To request a quote or a sample of 2-Hydroxy-4-methoxybenzaldehyde, please contact our sales team through the website or call us directly. We are happy to assist with your chemical sourcing needs.
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