4-Hydroxy-3-methylbenzaldehyde
4-Hydroxy-3-methylbenzaldehyde (CAS: 15174-69-3), with the molecular formula HOC6H3(CH3)CHO and a molecular weight of 136.15 g/mol, is a valuable organic compound. It functions as a key building block and intermediate in various chemical syntheses. This aldehyde is particularly useful in organic chemistry for constructing more complex molecules, serving as a precursor in the development of pharmaceuticals, agrochemicals, and specialty materials. Its distinct chemical structure allows for versatile reactivity.

Organic Synthesis Intermediate
Utilised as a crucial intermediate in the synthesis of more complex organic molecules. It serves as a versatile building block for research and industrial chemical development.
Pharmaceutical Precursor
Acts as a precursor in the multi-step synthesis of active pharmaceutical ingredients (APIs) and related compounds. Its structural features are incorporated into various drug discovery programmes.
Agrochemical Development
Employed in the development of novel agrochemicals, contributing to the synthesis of compounds with potential pesticidal or herbicidal activity.
Material Science Research
Investigated for its potential use in the synthesis of functional materials and polymers. The aldehyde group allows for further chemical modification and polymerisation.
| Molecular weight | 136.15 |
|---|---|
| Linear formula | HOC6H3(CH3)CHO |
| Assay | 97% |
| Melting point | 118-120 °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 |
|---|---|
| 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 4-Hydroxy-3-methylbenzaldehyde used for?
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4-Hydroxy-3-methylbenzaldehyde is primarily used as an intermediate in organic synthesis, a precursor in pharmaceutical and agrochemical development, and in material science research.
What are the CAS number and molecular formula for 4-Hydroxy-3-methylbenzaldehyde?
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The CAS number is 15174-69-3 and the molecular formula is HOC6H3(CH3)CHO.
What grade and purity does Tech Serve Solutions supply for 4-Hydroxy-3-methylbenzaldehyde?
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Tech Serve Solutions supplies 4-Hydroxy-3-methylbenzaldehyde with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should 4-Hydroxy-3-methylbenzaldehyde be handled safely?
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Handling requires a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. This compound is a skin, eye, and respiratory irritant (H315, H319, H335).
Is 4-Hydroxy-3-methylbenzaldehyde available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Hydroxy-3-methylbenzaldehyde, and can arrange shipments worldwide.
How can I request a quote or sample for 4-Hydroxy-3-methylbenzaldehyde?
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To request a quote or sample, please contact our sales department through the website or via email, providing your details and the product of interest.
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