3,5-Dichlorosalicylaldehyde
3,5-Dichlorosalicylaldehyde (CAS 90-60-8) is an organic compound with the molecular formula Cl2C6H2(OH)CHO and a molecular weight of 191.01 g/mol. As a key building block in organic synthesis, it is primarily utilised in the preparation of Schiff base ligands and other complex organic molecules. Available at a purity of 99%, this chemical is suitable for research and development purposes, offering reliable performance in various chemical transformations.
- Synonyms
- Cl2C6H2(OH)CHO

Preparation of Schiff Base Ligands
3,5-Dichlorosalicylaldehyde serves as a precursor in the synthesis of Schiff base ligands. These ligands are valuable in coordination chemistry and catalysis due to their ability to form stable complexes with metal ions.
Synthesis of Organic Intermediates
This compound is employed in the creation of specialised organic intermediates, such as (RS)-3,5-dichloro-2-[[(1-phenylethyl)imino]methyl]phenol. These intermediates can be further elaborated into more complex molecular structures.
Aldehyde Chemistry
As a substituted salicylaldehyde, it participates in characteristic reactions of aldehydes, including condensation and nucleophilic addition reactions, making it a versatile reagent in organic synthesis.
| Molecular weight | 191.01 |
|---|---|
| Linear formula | Cl2C6H2(OH)CHO |
| Assay | 99% |
| Solubility | ethanol: soluble5%, clear, faintly yellow to greenish-yellow |
| Application | 3,5-Dichlorosalicylaldehyde has been used in the preparation of:• Schiff base ligands1• (RS)-3,5-dichloro-2-[[(1-phenylethyl)imino]methyl]phenol2 |
| Melting point | 95-97 °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) | 26-36 |
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 3,5-Dichlorosalicylaldehyde used for?
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3,5-Dichlorosalicylaldehyde is used as a building block in organic synthesis, notably for preparing Schiff base ligands and other complex organic molecules.
What is the CAS number and formula for 3,5-Dichlorosalicylaldehyde?
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The CAS number is 90-60-8 and the linear formula is Cl2C6H2(OH)CHO.
What grade and purity does Tech Serve Solutions supply for 3,5-Dichlorosalicylaldehyde?
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Tech Serve Solutions supplies 3,5-Dichlorosalicylaldehyde with an assay of 99%. This product is typically considered a research or technical grade and is not represented as USP, BP, or EP grade.
What are the main safety hazards associated with 3,5-Dichlorosalicylaldehyde?
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3,5-Dichlorosalicylaldehyde is a warning irritant. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used when handling this compound.
How is 3,5-Dichlorosalicylaldehyde shipped and exported by TSS?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3,5-Dichlorosalicylaldehyde, adhering to international shipping regulations.
How can I request a quote or sample for 3,5-Dichlorosalicylaldehyde?
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To request a quote or sample, please contact the Tech Serve Solutions sales team through our website or by phone.
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