Description

4-(tert-Butoxycarbonyl)Phenyl Isothiocyanate is a specialized organic building block featuring a protected carboxylic acid group and a reactive isothiocyanate moiety. This compound is valued for its role as a key intermediate in the synthesis of complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and biotechnology industries for constructing novel chemical entities and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of kinase inhibitors and other small molecule therapeutics.
• Peptide & Protein Modification: Used to introduce thiourea linkages or fluorescent tags onto peptides, proteins, and other biomolecules via reaction with amine groups.
• Agrochemical Synthesis: Serves as an intermediate in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Employed in the creation of functionalized polymers, dendrimers, and advanced organic frameworks with tailored properties.
• Chemical Biology Probes: Utilized to develop activity-based probes (ABPs) and other diagnostic tools for studying enzymatic activity and biological pathways.
• Custom Synthesis & Contract Manufacturing: A key starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing client-specific compounds.

Basic Information

Product Name	4-(tert-Butoxycarbonyl)Phenyl Isothiocyanate
CAS No.	486415-37-6
Molecular Formula	C12H13NO3S
Molecular Weight	251.30 g/mol
Synonyms	4-(Boc)Phenyl Isothiocyanate; 4-(tert-Butoxycarbonyl)phenyl Isothiocyanate; 4-[(tert-Butoxy)carbonyl]phenyl Isothiocyanate; 1-Isothiocyanato-4-[(2-methylpropan-2-yl)oxycarbonyl]benzene; 4-Boc-Phenylisothiocyanate; Boc-Phe-NCS; p-(tert-Butoxycarbonyl)phenyl Isothiocyanate
EINECS	Contact for details

Quality Control

Our 4-(tert-Butoxycarbonyl)Phenyl Isothiocyanate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and to prevent degradation upon opening.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.