Description

Carbamic Acid, (1-Oxido-4-Pyridinyl)-, 1,1-Dimethylethyl Ester (9Ci) CAS NO 205044-50-4 is a specialized organic compound featuring a pyridine N-oxide moiety protected by a tert-butyl carbamate group. This molecular architecture makes it a valuable protected intermediate and building block in advanced synthetic chemistry. It is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for constructing complex molecules, particularly in medicinal chemistry programs targeting novel therapeutics.

Application

• Pharmaceutical Intermediate: Serves as a key protected synthon in the multi-step synthesis of active pharmaceutical ingredients (APIs), especially those containing functionalized pyridine structures.
• Agrochemical Research: Used as a building block in the development of new crop protection agents, herbicides, and fungicides.
• Medicinal Chemistry: Employed in drug discovery for the construction of compound libraries and the exploration of structure-activity relationships (SAR).
• Chemical Synthesis: Acts as a precursor for generating other N-oxide derivatives or for introducing the pyridinyl group under controlled conditions.
• Academic & Industrial R&D: Utilized in research laboratories for methodological development in organic synthesis and heterocyclic chemistry.

Basic Information

Item	Details
Product Name	Carbamic Acid, (1-Oxido-4-Pyridinyl)-, 1,1-Dimethylethyl Ester (9Ci)
CAS No.	205044-50-4
Molecular Formula	C10H14N2O3
Molecular Weight	210.23 g/mol
Synonyms	tert-Butyl (4-pyridyl N-oxide)carbamate; 4-[(tert-Butoxycarbonyl)amino]pyridine 1-oxide; 1-Oxido-4-pyridinylcarbamic acid 1,1-dimethylethyl ester; N-Boc-4-aminopyridine N-oxide; Boc-4-Aminopyridine N-Oxide; 4-(Boc-amino)pyridine 1-oxide; (4-Pyridyl N-oxide)carbamic acid tert-butyl ester
EINECS	Contact for details

Quality Control

Our production of Carbamic Acid, (1-Oxido-4-Pyridinyl)-, 1,1-Dimethylethyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality management system supports compliance with cGMP standards for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture uptake and degradation. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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