Description

(2-Methyl-4-Oxo-3-Prop-2-Enyl-1-Cyclopent-2-Enyl) 2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropane-1-Carboxylate CAS NO 42534-61-2 is a high-purity synthetic intermediate and active ingredient, recognized for its complex cyclopropane and cyclopentenone structure. This compound is valued for its role as a key building block in the synthesis of advanced fine chemicals and active pharmaceutical ingredients (APIs). It is primarily sought by research institutions, agrochemical manufacturers, and pharmaceutical companies engaged in the development of novel compounds requiring this specific bicyclic framework.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and insecticides, leveraging its bioactive structural motifs.
• Fine Chemical Production: Acts as a specialized building block for creating flavors, fragrances, and other high-value specialty chemicals.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new synthetic pathways and novel compound libraries.
• Material Science: Investigated as a monomer or additive for creating polymers with unique properties.

Basic Information

Product Name	(2-Methyl-4-Oxo-3-Prop-2-Enyl-1-Cyclopent-2-Enyl) 2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropane-1-Carboxylate
CAS No.	42534-61-2
Molecular Formula	C20H28O3
Molecular Weight	316.44 g/mol
Synonyms	Allethrin II; (2-Methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl) 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate; d-Allethrin; Bioallethrin; S-Bioallethrin; Pynamin; Pyresin; (1R)-trans-Chrysanthemic acid ester of allethrolone
EINECS	255-896-4

Quality Control

Our production of (2-Methyl-4-Oxo-3-Prop-2-Enyl-1-Cyclopent-2-Enyl) 2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropane-1-Carboxylate adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment. We support compliance with REACH and other relevant global regulatory frameworks.

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 material is light-sensitive and easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale yellow solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 92.0% (sum of isomers)
Specific Rotation	Contact for details
Related Substances (HPLC)	Total impurities ≤ 8.0%
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.