Description

5-Heptyn-2-One, 3-Hydroxy-, (3S)- (9Ci) is a chiral, hydroxylated alkyne ketone, a versatile and valuable building block in advanced organic synthesis. Its unique structure, featuring both a terminal alkyne and a stereogenic center, makes it a critical intermediate for constructing complex molecules with high precision. This compound is essential for researchers and manufacturers in the pharmaceutical and fine chemical industries, particularly for developing active pharmaceutical ingredients (APIs), chiral ligands, and novel materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Used in the preparation of chiral ligands, catalysts, and auxiliaries for stereoselective reactions.
• Natural Product Synthesis: Serves as a building block for the total synthesis of natural products containing hydroxylated alkyne motifs.
• Material Science Research: Employed in the development of novel polymers and functional organic materials with tailored properties.
• Chemical Biology Probes: Utilized in click chemistry applications (e.g., CuAAC) to create bioconjugates and molecular probes due to its terminal alkyne group.
• Agrochemical Research: Acts as an intermediate in the development of new crop protection agents and specialty agrochemicals.

Basic Information

Item	Details
Product Name	5-Heptyn-2-One, 3-Hydroxy-, (3S)- (9Ci)
CAS No.	687638-94-4
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	(3S)-3-Hydroxy-5-heptyn-2-one; (S)-3-Hydroxy-5-heptyn-2-one; 5-Heptyn-2-one, 3-hydroxy-, (3S)-; 3-Hydroxy-5-heptyn-2-one, (S)-; (S)-3-Hydroxyhept-5-yn-2-one; 3S-Hydroxy-5-heptyn-2-one; (3S)-3-Hydroxyhept-5-yn-2-one
EINECS	Contact for details

Quality Control

Our 5-Heptyn-2-One, 3-Hydroxy-, (3S)- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity analysis, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing identity, purity, and chiral excess are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and degradation. Keep the container in a cool, dry, and well-ventilated place, away from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (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.