2-Hydroxy-3-methylbenzaldehyde
2-Hydroxy-3-methylbenzaldehyde (CAS: 824-42-0), with the molecular formula HOC6H3(CH3)CHO and a molecular weight of 136.15 g/mol, is a substituted aromatic aldehyde. It serves as a valuable intermediate in organic synthesis, particularly in the development of more complex molecules. This compound finds application in the chemical industry and research laboratories for the creation of novel compounds and materials.
- IUPAC
- 2,3-Cresotaldehyde,2-Hydroxy-3-methylbenzaldehyde,3-Methylsalicylaldehyde
- Synonyms
- 3-Methylsalicylaldehyde2,3-Cresotaldehyde

Organic Synthesis Intermediate
2-Hydroxy-3-methylbenzaldehyde acts as a key building block in multi-step organic syntheses. Its aldehyde and hydroxyl functionalities allow for diverse chemical transformations, facilitating the construction of complex molecular architectures.
Pharmaceutical Research
This compound is utilised in the research and development of new pharmaceutical agents. It can be incorporated into synthetic routes for biologically active molecules, contributing to drug discovery efforts.
Material Science
The unique structure of 2-Hydroxy-3-methylbenzaldehyde makes it a potential precursor for novel materials. Its derivatives may exhibit interesting properties relevant to polymer chemistry and advanced material development.
| Molecular weight | 136.15 |
|---|---|
| Linear formula | HOC6H3(CH3)CHO |
| Assay | 98% |
| Boiling point | 204 °C/730 mmHg(lit.) |
| Density | 1.123 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.564(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 | 87 °C / 188.6 °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 2-Hydroxy-3-methylbenzaldehyde used for?
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2-Hydroxy-3-methylbenzaldehyde is primarily used as an intermediate in organic synthesis, particularly in pharmaceutical research and the development of new materials.
What are the CAS number and molecular formula?
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The CAS number is 824-42-0, and the molecular formula is HOC6H3(CH3)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-3-methylbenzaldehyde with a minimum assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 2-Hydroxy-3-methylbenzaldehyde be handled safely?
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2-Hydroxy-3-methylbenzaldehyde is classified as a Warning substance. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. Refer to the safety data sheet for full details.
Is 2-Hydroxy-3-methylbenzaldehyde a controlled substance?
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The provided data does not indicate that 2-Hydroxy-3-methylbenzaldehyde is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, packages and ships chemicals in compliance with international regulations. Further details on specific packaging for 2-Hydroxy-3-methylbenzaldehyde can be provided upon request.
How can I request a sample or quote for 2-Hydroxy-3-methylbenzaldehyde?
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To request a sample or a quote for 2-Hydroxy-3-methylbenzaldehyde, please contact our sales department via the website or listed contact information.
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