3-(3,5-Dichlorophenoxy)benzaldehyde
3-(3,5-Dichlorophenoxy)benzaldehyde (CAS 81028-92-4) is an organic compound with the molecular formula Cl 2 C 6 H 3 OC 6 H 4 CHO and a molecular weight of 267.11 g/mol. This aldehyde, characterised by its dichlorophenoxy substituent, serves as a valuable intermediate in chemical synthesis. It is primarily utilised as a building block in the creation of more complex organic molecules, notably in the preparation of specific functionalised compounds for research and development purposes.
- Synonyms
- 3-(3,5-Dichlorophenoxy)benzaldehydeCl2C6H3OC6H4CHO

Synthesis of Specialty Chemicals
This compound functions as a key intermediate in the synthesis of various organic molecules. Its specific structure allows for targeted reactions, making it useful in developing novel compounds with specific properties for research applications.
Intermediate for Nitrostyrene Derivatives
3-(3,5-Dichlorophenoxy)benzaldehyde has been documented for its use in the synthesis of 3-(3,5-dichlorophenoxy)-nitrostyrene (DPNS). This highlights its utility in the preparation of specific functionalised styrene derivatives.
Organic Building Block
As an organic building block, this benzaldehyde derivative offers a versatile platform for constructing more complex molecular architectures. It is employed in multi-step synthetic routes within organic chemistry laboratories.
| Molecular weight | 267.11 |
|---|---|
| Linear formula | Cl2C6H3OC6H4CHO |
| Assay | 95% |
| Boiling point | 125 °C/0.03 mmHg(lit.) |
| Application | 3-(3,5-Dichlorophenoxy)benzaldehyde was used in the synthesis of 3-(3,5-dichlorophenoxy)-nitrostyrene (DPNS)1. |
| Melting point | 48-55 °C(lit.) |



Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-41-43-50/53 |
| Safety statements (S) | 26-36/37/39-60-61 |
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 3-(3,5-Dichlorophenoxy)benzaldehyde used for?
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3-(3,5-Dichlorophenoxy)benzaldehyde is used as an intermediate and building block in organic synthesis, including the preparation of 3-(3,5-dichlorophenoxy)-nitrostyrene (DPNS).
What is the CAS number and molecular formula for 3-(3,5-Dichlorophenoxy)benzaldehyde?
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The CAS number is 81028-92-4 and the linear molecular formula is Cl 2 C 6 H 3 OC 6 H 4 CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-(3,5-Dichlorophenoxy)benzaldehyde with a minimum assay of 95%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 3-(3,5-Dichlorophenoxy)benzaldehyde be handled safely?
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This compound is classified as dangerous. It may cause serious eye damage and allergic skin reactions, and is harmful if swallowed, being toxic to aquatic life with long-lasting effects. Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Avoid release to the environment. Refer to the Safety Data Sheet (SDS) for detailed handling procedures.
Is 3-(3,5-Dichlorophenoxy)benzaldehyde a controlled substance?
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The provided data does not indicate that 3-(3,5-Dichlorophenoxy)benzaldehyde is a controlled substance.
How is this chemical packed and exported?
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This chemical is packed and exported according to relevant regulations, including UN 3077 classification for transport. Please contact us for specific export and packaging details.
How can I request a sample or quote?
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To request a sample or a quote for 3-(3,5-Dichlorophenoxy)benzaldehyde, please contact our sales department via the website or direct email, providing your required quantity and shipping details.
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