4-Propoxybenzaldehyde
4-Propoxybenzaldehyde (CAS 5736-85-6), a chemical compound with the formula CH3CH2CH2OC6H4CHO and a molecular weight of 164.20 g/mol, is a versatile aldehyde. It serves as a valuable building block in organic synthesis. Its characteristic aromatic structure with a propoxy substituent makes it useful in the development of various chemical entities for research and industrial applications. It is typically supplied with an assay of 97%.

Organic Synthesis Intermediate
4-Propoxybenzaldehyde acts as a key intermediate in the synthesis of more complex organic molecules. Its aldehyde functional group readily participates in various reactions, making it a useful building block for novel compounds.
Research and Development
This compound is utilised in chemical research for the exploration of new chemical pathways and the creation of innovative materials. It provides a foundational structure for a range of derivatisation studies.
Building Block for Fine Chemicals
As an organic building block, 4-Propoxybenzaldehyde is employed in the construction of fine chemicals. Its aromatic and ether functionalities allow for diverse synthetic transformations.
| Molecular weight | 164.20 |
|---|---|
| Linear formula | CH3CH2CH2OC6H4CHO |
| Assay | 97% |
| Boiling point | 129-130 °C/10 mmHg(lit.) |
| Density | 1.039 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.546(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-27-36/37/39 |
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-Propoxybenzaldehyde used for?
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4-Propoxybenzaldehyde is primarily used as an intermediate and building block in organic synthesis and chemical research for creating more complex organic molecules.
What is the CAS number and molecular formula for 4-Propoxybenzaldehyde?
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The CAS number is 5736-85-6, and the molecular formula is CH3CH2CH2OC6H4CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Propoxybenzaldehyde with a purity of 97%. This is a technical/research grade, and TSS does not represent it as USP/BP/EP.
How should 4-Propoxybenzaldehyde be handled safely?
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4-Propoxybenzaldehyde is classified with Warning signal word and hazards including H302, H312, H315, H319, H332, H335. Appropriate personal protective equipment such as eyeshields, gloves, and suitable respirators must be worn. Handle in a well-ventilated area.
Is 4-Propoxybenzaldehyde a controlled substance?
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The provided data does not indicate that 4-Propoxybenzaldehyde is a controlled substance.
How is 4-Propoxybenzaldehyde packed, shipped, and exported?
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4-Propoxybenzaldehyde is carefully packed to ensure safe transit and is available for global export by Tech Serve Solutions.
How can I request a quote or sample for 4-Propoxybenzaldehyde?
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To request a quote or sample of 4-Propoxybenzaldehyde, please contact the Tech Serve Solutions sales team via our website or designated contact channels.
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