2,4-Dichlorophenyl isothiocyanate
2,4-Dichlorophenyl isothiocyanate (CAS: 6590-96-1) is an organic sulfur compound with the linear formula Cl2C6H3NCS and a molecular weight of 204.08 g/mol. It serves as a valuable building block and intermediate in chemical synthesis, particularly within organic chemistry. Its reactivity makes it useful for introducing the isothiocyanate moiety into larger molecules for further functionalisation and research purposes.
- Synonyms
- Cl2C6H3NCS

Organic Synthesis Intermediate
2,4-Dichlorophenyl isothiocyanate is employed as a key intermediate in the synthesis of more complex organic molecules. Its isothiocyanate group readily reacts with nucleophiles, facilitating the construction of various heterocyclic compounds and functionalised aromatic systems.
Research and Development
This compound is utilised in research laboratories for exploring novel chemical reactions and developing new synthetic methodologies. It can be used in the preparation of potential pharmaceutical agents, agrochemicals, and materials science compounds.
Building Block for Heterocycles
The isothiocyanate functionality makes 2,4-Dichlorophenyl isothiocyanate a useful precursor for the synthesis of sulfur- and nitrogen-containing heterocycles. These ring systems are frequently found in biologically active molecules.
| Molecular weight | 204.08 |
|---|---|
| Linear formula | Cl2C6H3NCS |
| Assay | 95% |
| Boiling point | 260 °C(lit.) |
| Density | 1.41 g/mL at 25 °C(lit.) |
| Storage temperature | 2-8°C |
| Melting point | 36-40 °C(lit.) |


Hazard statements
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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 |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34-42 |
| Safety statements (S) | 22-26-36/37/39-45 |
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 2,4-Dichlorophenyl isothiocyanate used for?
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2,4-Dichlorophenyl isothiocyanate is primarily used as a building block and intermediate in organic synthesis and for research and development purposes. It is valuable for creating more complex molecules, including potential pharmaceuticals and agrochemicals.
What are the CAS number and formula for 2,4-Dichlorophenyl isothiocyanate?
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The CAS number is 6590-96-1, and its linear formula is Cl2C6H3NCS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4-Dichlorophenyl isothiocyanate with an assay of 95%. This product is suitable for chemical synthesis and research applications. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2,4-Dichlorophenyl isothiocyanate be handled safely?
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2,4-Dichlorophenyl isothiocyanate is classified as Dangerous Goods. It is corrosive and may cause skin burns and eye damage (H314), and can cause allergy or asthma symptoms or breathing difficulties if inhaled (H334). It may also cause an allergic skin reaction (H317). Appropriate personal protective equipment, including gloves, eyeshields, and a respirator, must be used. Handle in a well-ventilated area and avoid inhalation.
Is 2,4-Dichlorophenyl isothiocyanate available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2,4-Dichlorophenyl isothiocyanate, adhering to all necessary shipping and regulatory requirements.
How can I request a sample or quote for 2,4-Dichlorophenyl isothiocyanate?
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To request a sample or a quote, please contact our sales department through the TSS website or by calling our direct line. Please specify the quantity required and your delivery location.
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