2,3,6-Trichlorobenzaldehyde
2,3,6-Trichlorobenzaldehyde (CAS: 4659-47-6) is an organic compound with the molecular formula Cl3C6H2CHO and a molecular weight of 209.46 g/mol. This trichlorinated benzaldehyde derivative functions as a valuable building block in organic synthesis. Its primary applications include its use in the preparation of more complex chemical entities such as 2,3,6-trichloro-5-nitrobenzaldehyde and 2,3,6-trichloromandelic acid, contributing to diverse chemical research and development pathways.
- Synonyms
- 4659-47-6Cl3C6H2CHO

Synthesis of Nitro Derivatives
2,3,6-Trichlorobenzaldehyde serves as a precursor in the synthesis of 2,3,6-trichloro-5-nitrobenzaldehyde, enabling further functionalization in organic chemistry research.
Preparation of Mandelic Acid Analogues
This compound is employed in the laboratory for the preparation of 2,3,6-trichloromandelic acid, contributing to the synthesis of specialised organic acids.
Organic Building Block
As a versatile organic building block, 2,3,6-Trichlorobenzaldehyde facilitates the construction of complex molecular architectures in chemical synthesis.
| Molecular weight | 209.46 |
|---|---|
| Linear formula | Cl3C6H2CHO |
| Assay | 97% |
| Application | 2,3,6-Trichlorobenzaldehyde has been used in the preparation of:• 2,3,6-trichloro-5-nitrobenzaldehyde1• 2,3,6-trichloromandelic acid2 |
| Melting point | 87-89 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-28-36/37/39-45 |
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 2,3,6-Trichlorobenzaldehyde used for?
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2,3,6-Trichlorobenzaldehyde is used as a chemical intermediate and building block in organic synthesis, notably for preparing compounds like 2,3,6-trichloro-5-nitrobenzaldehyde and 2,3,6-trichloromandelic acid.
What are the CAS number and formula for 2,3,6-Trichlorobenzaldehyde?
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The CAS number for 2,3,6-Trichlorobenzaldehyde is 4659-47-6, and its linear formula is Cl3C6H2CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3,6-Trichlorobenzaldehyde with a minimum purity of 97%. This product is intended for laboratory and research use; TSS does not represent it as USP, BP, EP, or other pharmacopoeial grades.
What are the primary safety concerns when handling 2,3,6-Trichlorobenzaldehyde?
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2,3,6-Trichlorobenzaldehyde is classified as corrosive and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including chemical-resistant gloves, eye protection (goggles or face shield), and protective clothing, must be worn. Handle in a well-ventilated area or fume hood.
Is 2,3,6-Trichlorobenzaldehyde available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 2,3,6-Trichlorobenzaldehyde, to researchers and industries worldwide.
How can I request a quotation or sample of 2,3,6-Trichlorobenzaldehyde?
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Please use the contact form on our website or contact our sales team directly to request a quotation or to inquire about sample availability for 2,3,6-Trichlorobenzaldehyde.
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