2-Chloro-3-hydroxybenzaldehyde
2-Chloro-3-hydroxybenzaldehyde (CAS: 56962-10-8), with the molecular formula ClC6H3(OH)CHO and a molecular weight of 156.57 g/mol, is a valuable organic building block. This substituted benzaldehyde features both a hydroxyl and a formyl group, along with a chlorine atom on the aromatic ring, making it a versatile intermediate in organic synthesis. It is commonly employed in the preparation of more complex organic molecules and fine chemicals.

Organic Synthesis Intermediate
Serves as a key building block in the synthesis of diverse organic compounds. Its functional groups allow for various chemical transformations, facilitating the construction of complex molecular architectures.
Pharmaceutical Research
Utilised in the development of novel pharmaceutical agents. Its unique structure can be incorporated into potential drug candidates for various therapeutic areas.
Agrochemical Development
Applied in the research and development of new agrochemical products. It can be a precursor for compounds with potential herbicidal, fungicidal, or insecticidal properties.
Fine Chemical Manufacturing
A useful reagent in the production of fine chemicals. Its reactivity profile makes it suitable for incorporation into multi-step synthesis pathways.
| Molecular weight | 156.57 |
|---|---|
| Linear formula | ClC6H3(OH)CHO |
| Assay | 97% |
| Melting point | 139-143 °C(lit.) |



Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-37/38-41-50 |
| Safety statements (S) | 26-36-60-61 |
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 2-Chloro-3-hydroxybenzaldehyde used for?
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2-Chloro-3-hydroxybenzaldehyde is primarily used as an intermediate in organic synthesis, including in the development of pharmaceuticals, agrochemicals, and other fine chemicals. Its reactive functional groups make it a versatile building block.
What are the CAS number and formula for 2-Chloro-3-hydroxybenzaldehyde?
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The CAS number is 56962-10-8 and the molecular formula is ClC6H3(OH)CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-3-hydroxybenzaldehyde with an assay of 97%. This product is not represented as USP, BP, EP, or any pharmacopoeia grade; it is typically considered for research and chemical synthesis purposes.
How should 2-Chloro-3-hydroxybenzaldehyde be handled safely?
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Handling requires appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. The compound is classified as dangerous, causing serious eye damage and skin irritation, and may cause respiratory irritation, and is toxic if swallowed and very toxic to aquatic life. Ensure good ventilation and avoid release into the environment.
How is this chemical shipped or exported?
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As a global supplier, Tech Serve Solutions exports chemicals internationally, adhering to all relevant shipping regulations for hazardous materials. Shipments are packed and handled with care to ensure safe transit.
How can I request a quote or sample for 2-Chloro-3-hydroxybenzaldehyde?
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To request a quote or a sample, please contact our sales department via the website or telephone, providing your details and the product CAS number (56962-10-8).
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