2-Isopropylphenyl isocyanate
2-Isopropylphenyl isocyanate (CAS: 56309-56-9) is an organic compound with the linear formula (CH3)2CHC6H4NCO and a molecular weight of 161.20 g/mol. This chemical is primarily utilised as a versatile building block in organic synthesis. Its reactive isocyanate group allows for participation in various chemical transformations, making it valuable for researchers and manufacturers in the fine chemical and pharmaceutical intermediate sectors.

Organic Synthesis
Utilised as a key intermediate in the synthesis of more complex organic molecules. The isocyanate functional group readily reacts with nucleophiles like alcohols and amines.
Pharmaceutical Intermediates
Serves as a precursor in the development of active pharmaceutical ingredients (APIs) and related compounds. Its structure can be incorporated into novel drug candidates.
Material Science Research
Can be employed in the creation of specialised polymers or materials where the isocyanate moiety is crucial for cross-linking or functionalisation.
| Molecular weight | 161.20 |
|---|---|
| Linear formula | (CH3)2CHC6H4NCO |
| Assay | 95% |
| Boiling point | 66-67 °C/5 mmHg(lit.) |
| Density | 1.019 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.524(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 88 °C / 190.4 °F |
| Transport (UN / ADR) | UN 2206 6.1/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 23-26-36 |
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 2-Isopropylphenyl isocyanate used for?
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2-Isopropylphenyl isocyanate is primarily used as a building block in organic synthesis and as an intermediate in the development of pharmaceutical compounds and specialised materials.
What are the CAS number and formula for 2-Isopropylphenyl isocyanate?
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The CAS number for 2-Isopropylphenyl isocyanate is 56309-56-9, and its linear formula is (CH3)2CHC6H4NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Isopropylphenyl isocyanate with an assay of 95%. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
How is this chemical shipped and exported?
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2-Isopropylphenyl isocyanate is shipped and exported according to international regulations for hazardous materials, including UN 2206, Class 6.1, Packing Group III.
What are the main safety concerns when handling 2-Isopropylphenyl isocyanate?
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2-Isopropylphenyl isocyanate is classified with Warning signal word and has hazard statements H302, H312, H315, H319, H332, and H335, indicating it is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential.
How can I request a quote or sample for 2-Isopropylphenyl isocyanate?
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To request a quote or sample, please contact the Tech Serve Solutions sales department via our website or directly by phone.
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