4-Octylphenyl isocyanate
4-Octylphenyl isocyanate (CAS: 69342-46-7) with the molecular formula CH3(CH2)7C6H4NCO is a reactive organic compound. This isocyanate derivative is primarily utilised as a building block and intermediate in chemical synthesis. Its specific applications leverage the highly reactive isocyanate functional group for further chemical transformations, contributing to the development of novel organic molecules and materials.

Organic Synthesis Intermediate
4-Octylphenyl isocyanate serves as a valuable intermediate in the synthesis of various organic compounds. The isocyanate group readily reacts with nucleophiles such as alcohols, amines, and water to form carbamates, ureas, and related derivatives, enabling the construction of complex molecular architectures.
Polymer Modification
This compound can be employed to introduce octylphenyl functionalities into polymers. Its incorporation can modify polymer properties, potentially influencing solubility, thermal stability, or surface characteristics through reactions with active sites on existing polymer chains.
Reagent in Chemical Research
In research and development settings, 4-Octylphenyl isocyanate acts as a specialised reagent for exploring new chemical reactions and developing novel materials. Its defined structure makes it suitable for studies involving isocyanate chemistry and the synthesis of custom organic molecules.
| Molecular weight | 231.33 |
|---|---|
| Linear formula | CH3(CH2)7C6H4NCO |
| Assay | 97% |
| Boiling point | 294-295 °C(lit.) |
| Density | 0.946 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5052(lit.) |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25-36/37/38-42 |
| Safety statements (S) | 23-26-36/37-45 |
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 4-Octylphenyl isocyanate used for?
+
4-Octylphenyl isocyanate is used as a building block and intermediate in chemical synthesis, particularly for creating organic compounds and for polymer modification.
What is the CAS number and formula for 4-Octylphenyl isocyanate?
+
The CAS number for 4-Octylphenyl isocyanate is 69342-46-7 and its molecular formula is CH3(CH2)7C6H4NCO.
What grade and purity does Tech Serve Solutions supply for 4-Octylphenyl isocyanate?
+
Tech Serve Solutions supplies 4-Octylphenyl isocyanate with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 4-Octylphenyl isocyanate be handled safely?
+
4-Octylphenyl isocyanate is a dangerous substance. It is toxic if swallowed, in contact with skin, or if inhaled, causes skin irritation, serious eye irritation, may cause respiratory irritation, and can cause allergy or asthma symptoms or breathing difficulties if inhaled. Appropriate personal protective equipment including eyeshields, face shields, gloves, and a full-face respirator or appropriate respirator filter must be used. Handle in a well-ventilated area.
How is 4-Octylphenyl isocyanate packed and shipped?
+
Tech Serve Solutions exports fine chemicals globally, adhering to all necessary regulations for safe packing and transportation of hazardous materials.
How can I request a quote or sample for 4-Octylphenyl isocyanate?
+
To request a quote or sample of 4-Octylphenyl isocyanate, please contact our sales team through the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis