5-Chloro-2-methylphenyl isothiocyanate
5-Chloro-2-methylphenyl isothiocyanate (CAS: 19241-36-2) is an organic compound with the formula ClC6H3(CH3)NCS and a molecular weight of 183.66 g/mol. This chemical functions as a valuable building block in organic synthesis, particularly for introducing the isothiocyanate moiety into more complex molecules. Its properties make it useful in chemical research and the development of novel compounds.

Organic Synthesis Intermediate
This isothiocyanate serves as a versatile building block for constructing complex organic molecules. It readily participates in reactions characteristic of isothiocyanates, enabling the synthesis of diverse chemical structures.
Research and Development
Used in laboratory settings for exploring new synthetic pathways and developing novel chemical entities. Its reactivity profile is valuable for researchers in medicinal chemistry and materials science.
Agrochemical Synthesis
Potential intermediate in the synthesis of agrochemicals. The isothiocyanate group can be incorporated into structures with potential pesticidal or herbicidal activity.
| Molecular weight | 183.66 |
|---|---|
| Linear formula | ClC6H3(CH3)NCS |
| Assay | 98% |
| Boiling point | 268-272 °C(lit.) |
| Density | 1.248 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.646(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 |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-36/37/39-45 |
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 5-Chloro-2-methylphenyl isothiocyanate used for?
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5-Chloro-2-methylphenyl isothiocyanate is primarily used as a building block and intermediate in organic synthesis and chemical research for developing new compounds.
What is the CAS number and molecular formula?
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The CAS number is 19241-36-2 and the molecular formula is ClC6H3(CH3)NCS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Chloro-2-methylphenyl isothiocyanate with an assay of 98%. TSS does not represent this product as USP, BP, EP or other pharmacopoeia grades.
How should 5-Chloro-2-methylphenyl isothiocyanate be handled?
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This compound causes severe skin burns and eye damage (H314). Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection (type N100 or P3 recommended). Ensure adequate ventilation and avoid contact with skin, eyes, and clothing.
Can Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals and laboratory reagents, including 5-Chloro-2-methylphenyl isothiocyanate.
How can I request a sample or quote?
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Please contact the Tech Serve Solutions sales team through our website or direct inquiry channels to request a sample or a quotation for 5-Chloro-2-methylphenyl isothiocyanate.
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