Description

Carbamic Acid, (4-Chloro-1-Methyl-2,3-Butadienyl)-, Methyl Ester (9Ci) CAS NO 91434-57-0 is a specialized organic intermediate featuring a reactive allene and carbamate ester functional group. This compound is valued for its role as a versatile building block in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those requiring complex heterocyclic or functionalized side chains.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its reactive allene moiety.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex molecules, including natural product analogs and specialty polymers.
• Chemical Research: Acts as a model compound in methodological studies for reactions involving allenes and carbamate esters.
• Fine Chemical Production: Utilized in the pilot-scale and commercial manufacture of high-value, low-volume specialty chemicals.

Basic Information

Item	Detail
Product Name	Carbamic Acid, (4-Chloro-1-Methyl-2,3-Butadienyl)-, Methyl Ester (9Ci)
CAS No.	91434-57-0
Molecular Formula	C7H9ClNO2
Molecular Weight	174.60 g/mol
Synonyms	(4-Chloro-1-methylbuta-1,2-dien-1-yl) methylcarbamate; Methyl N-(4-chloro-1-methylbuta-1,2-dien-1-yl)carbamate; 4-Chloro-1-methyl-2,3-butadienyl methylcarbamate; Methyl (4-chloro-1-methyl-2,3-butadienyl)carbamate; Carbamic acid, (4-chloro-1-methyl-1,2-butadienyl)-, methyl ester; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of Carbamic Acid, (4-Chloro-1-Methyl-2,3-Butadienyl)-, Methyl Ester (9Ci) adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and structural confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong acids, bases, and oxidizing agents. Due to the reactive nature of the allene group, prolonged storage should be minimized, and the material should be used promptly after opening.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Typical: 97-99%)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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