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Benzyl Isocyanate CAS NO 3173-56-6
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CAS No.:3173-56-6
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Benzyl Isocyanate is a versatile organic building block characterized by its reactive isocyanate functional group. This compound is essential for synthesizing benzyl carbamates and ureas, which are key intermediates in the production of agrochemicals, pharmaceuticals, and specialty polymers. It is particularly valuable for researchers and manufacturers in the fine chemical, crop protection, and polymer industries seeking to introduce the benzyl moiety into complex molecules.
Application
- Agrochemical Intermediate: Key precursor in the synthesis of herbicides, fungicides, and insecticides, where it is used to create active ingredients with specific biological activity.
- Pharmaceutical Synthesis: Serves as a crucial reagent for constructing pharmacophores and active pharmaceutical ingredients (APIs), particularly in the development of urethane-based compounds.
- Polymer & Resin Production: Used in the manufacture of polyurethanes, coatings, adhesives, and specialty resins, contributing to durability and chemical resistance.
- Chemical Research & Development: Employed as a versatile reagent in organic synthesis for introducing the benzylcarbamoyl group, facilitating the creation of novel chemical entities.
- Cross-linking Agent: Functions as a cross-linker in polymer chemistry to modify material properties such as tensile strength and thermal stability.
Basic Information
| Product Name | Benzyl Isocyanate |
| CAS No. | 3173-56-6 |
| Molecular Formula | C8H7NO |
| Molecular Weight | 133.15 g/mol |
| Synonyms | Isocyanatomethylbenzene; (Isocyanatomethyl)benzene; α-Isocyanatotoluene; Benzylcarbimide; Phenylmethyl isocyanate; NSC 9376; BIC |
| EINECS | 221-640-9 |
Quality Control
Our Benzyl Isocyanate is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We adhere to cGMP principles where applicable to support our customers in regulated industries.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation. Isolate from strong bases, acids, and oxidizing agents.
Specification
| Item | Specification |
|---|---|
| Appearance | Clear, colorless to pale yellow liquid |
| Identification (IR) | Conforms |
| Assay (GC) | ≥ 98.0% |
| Water Content (KF) | ≤ 0.1% |
| Density (at 20°C) | ~1.08 g/cm³ |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
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Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.





