Description

6-Methyl-1,4,5,6-Tetrahydrocyclopentapyrazole-3-Carboxylic Acid Ethyl Ester is a high-value, synthetically versatile heterocyclic building block, specifically an ester-substituted cyclopentapyrazole derivative. Its core value lies in its fused bicyclic structure, which serves as a critical scaffold for the development of novel pharmacologically active compounds. This intermediate is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for use in medicinal chemistry, lead optimization, and the synthesis of new chemical entities.

Application

This specialized chemical intermediate is designed for advanced synthetic applications, particularly in research-driven environments.

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), especially those targeting central nervous system (CNS) disorders, inflammation, or metabolic diseases.
• Medicinal Chemistry & Lead Optimization: Used as a core scaffold for constructing compound libraries to explore structure-activity relationships (SAR) and identify new drug candidates.
• Agrochemical Research: Serves as a building block for developing new herbicides, fungicides, or insecticides with novel modes of action.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological pathways and target validation.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of bespoke compounds for client projects.
• Academic Research: Employed in university and institutional labs for methodological development in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	6-Methyl-1,4,5,6-Tetrahydrocyclopentapyrazole-3-Carboxylic Acid Ethyl Ester
CAS No.	856256-53-6
Molecular Formula	C11H16N2O2
Molecular Weight	208.26 g/mol
Synonyms	Ethyl 6-Methyl-1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate; 1,4,5,6-Tetrahydro-6-methylcyclopentapyrazole-3-carboxylic Acid Ethyl Ester; 6-Methyl-4,5,6,7-tetrahydro-1H-cyclopenta[c]pyrazole-3-carboxylic acid ethyl ester; Ethyl 6-methyl-4,5,6,7-tetrahydro-1H-cyclopenta[c]pyrazole-3-carboxylate; Cyclopentapyrazole-3-carboxylic acid ethyl ester, 6-methyl-1,4,5,6-tetrahydro-; CAS 856256-53-6
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for your critical research and development processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles. Quality is verified using advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry. While typically supplied as a high-purity R&D grade, we can discuss custom synthesis under GMP-like conditions for later-stage projects upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep the container tightly sealed in a dry environment to minimize exposure to moisture. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Standard R&D Grade)
Purity (GC)	≥ 97.0%
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.