Description

5,7-Octadecadiynoic Acid is a long-chain fatty acid derivative featuring conjugated diyne functionality, which imparts unique reactivity and structural properties. This compound is valued as a specialized synthetic intermediate and building block in advanced organic and materials chemistry. It is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel compounds with targeted biological or physical characteristics.

Application

• Pharmaceutical Intermediate: Serves as a key building block for synthesizing novel drug candidates, particularly those targeting metabolic pathways or requiring specific lipid-like structures.
• Agrochemical Research: Used in the development of new pesticides and plant growth regulators, leveraging its alkyne groups for further chemical modification.
• Materials Science: Acts as a precursor for functionalized polymers, liquid crystals, or surface-modifying agents due to its long hydrocarbon chain and reactive diyne moiety.
• Chemical Synthesis: Employed in organic synthesis for cycloaddition reactions (e.g., click chemistry) and the construction of complex natural product analogs.
• Biochemical Probes: Can be utilized to create labeled fatty acids or other probes for studying lipid metabolism and membrane biology.
• Cosmetic Ingredient Research: Investigated for potential use in advanced skincare formulations requiring specific fatty acid derivatives.

Basic Information

Product Name	5,7-Octadecadiynoic Acid
CAS No.	136667-54-4
Molecular Formula	C₁₈H₂₈O₂
Molecular Weight	276.41 g/mol
Synonyms	Octadeca-5,7-diynoic Acid; 5,7-Octadecadiyne-1-oic Acid; 5,7-Octadecadiynoic Acid; (5Z,7Z)-5,7-Octadecadiynoic Acid (stereoisomer); C18:2-diynoic Acid; Fatty Acid C18:2 (5,7-diyn); 136667-54-4 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our 5,7-Octadecadiynoic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity assessment and structural confirmation, to ensure it meets the high standards required for research and development applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profile.

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). For long-term storage, consider holding under an inert atmosphere to minimize potential oxidation.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents	Complies with ICH guidelines

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