Description

1-Cyclopentene-1-Methanol,5-Hydroxy-4-Methyl-5-(1-Methylethyl)-,(4R,5R)-Rel-(9Ci) is a high-purity, stereochemically defined chiral building block of significant interest in advanced organic synthesis. Its complex, functionalized cyclopentene core makes it a valuable precursor for the development of novel pharmaceuticals, agrochemicals, and specialty materials. This compound is primarily sought by R&D chemists and process development scientists in the fine chemical and pharmaceutical industries for constructing complex molecular architectures with precise stereocontrol.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds with complex cyclic structures.
• Agrochemical Synthesis: Used in the synthesis of advanced, biologically active molecules for crop protection and pest management products.
• Asymmetric Catalysis Research: Acts as a substrate or ligand precursor in the development and testing of new asymmetric catalytic reactions.
• Fine Chemical Production: Employed in the multi-step synthesis of high-value specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Material Science Research: Potential building block for creating novel polymers or functional materials with tailored properties derived from its unique cyclic alkene and alcohol functionalities.

Basic Information

Product Name	1-Cyclopentene-1-Methanol,5-Hydroxy-4-Methyl-5-(1-Methylethyl)-,(4R,5R)-Rel-(9Ci)
CAS No.	232933-00-5
Molecular Formula	C10H18O2
Molecular Weight	170.25 g/mol
Synonyms	(4R,5R)-5-Hydroxy-4-methyl-5-(propan-2-yl)cyclopent-1-ene-1-methanol; (4R,5R)-rel-5-Hydroxy-4-methyl-5-(1-methylethyl)-1-cyclopentene-1-methanol; (rel)-(4R,5R)-5-Hydroxy-4-methyl-5-isopropylcyclopent-1-en-1-ylmethanol; 1-Cyclopentene-1-methanol, 5-hydroxy-4-methyl-5-(1-methylethyl)-, (4R,5R)-rel-; Chiral Hydroxy-Methyl Cyclopentene Derivative; Isopropylidenecyclopentenemethanol derivative.
EINECS	Contact for details

Quality Control

Our production of this advanced chiral intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is characterized using advanced analytical techniques including Chiral HPLC, GC, and NMR to confirm identity, enantiomeric/excess, and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 95.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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