Description

3-Decynoic Acid is a linear, unsaturated carboxylic acid featuring a terminal alkyne group at the C-3 position, widely employed as a specialty building block in synthetic organic chemistry. Its unique structure enables selective metal-catalyzed couplings (e.g., Sonogashira, Glaser), making it a high-value intermediate for pharmaceuticals, agrochemicals, and functional materials. This compound is essential for R&D laboratories and fine chemical manufacturers requiring chemoselective, high-purity alkynoic acid derivatives. 3-Decynoic Acid CAS NO 27007-78-9 is supplied under stringent quality controls to ensure batch-to-batch consistency and reactivity reliability.

Application

• Key intermediate in the synthesis of bioactive molecules, including kinase inhibitors and antifungal agents
• Building block for conjugated polymers and molecular electronics due to its alkyne–carboxyl bifunctionality
• Reagent in click chemistry-enabled bioconjugation strategies for diagnostic probe development
• Substrate for palladium- and copper-catalyzed cross-coupling reactions in process R&D
• Starting material for preparing decynoate esters used as flavor/fragrance precursors and polymer initiators
• Tool compound in medicinal chemistry for structure–activity relationship (SAR) studies of fatty acid mimetics
• Component in advanced lubricant additives where thermal stability and polar anchoring are critical

Basic Information

Product Name	3-Decynoic Acid
CAS No.	27007-78-9
Molecular Formula	C10H16O2
Molecular Weight	168.23 g/mol
Synonyms	Dec-3-ynoic acid; 3-Decynoic acid; 3-Decynoic acid (95%); 3-Decynoic acid, 97%; 3-Decynoic acid, ≥98%; n-Dec-3-ynoic acid; 3-Yn-decanoic acid; CH3(CH2)6C≡CCOOH; NSC 142315; UNII-8Q0J1X5V1U
EINECS	248-193-2

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches of 3-Decynoic Acid are verified for identity (IR, NMR), assay (HPLC), and impurity profile (GC, residual solvents) per ACS and EP guidelines. We maintain ISO 9001-certified manufacturing practices and full traceability from raw materials to final packaging.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15–25°C) in a dry, well-ventilated area away from strong oxidizers and bases. Due to its light-sensitive nature, minimize exposure to ambient and UV light during handling and storage.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic sharp odor
Assay (by HPLC)	≥98.0%
Identity (IR)	Conforms to reference standard
Acid Value	330–340 mg KOH/g
Water Content (KF)	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals (as Pb)	≤10 ppm

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