Description

4-Penten-1-ol is a versatile five-carbon unsaturated primary alcohol characterized by a terminal double bond and a hydroxyl group. This bifunctional structure makes it a valuable chemical intermediate for synthesizing more complex molecules in fine chemical and pharmaceutical manufacturing. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for its utility in organic synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a monomer or co-monomer for creating specialty polymers with tailored properties.
• Flavor & Fragrance Ingredient: Employed as a precursor in the manufacture of specific aroma chemicals.
• Organic Synthesis Reagent: Utilized in various reactions, including cross-coupling, hydrofunctionalization, and as a protected diene in Diels-Alder reactions.
• Surface Active Agent Precursor: A starting material for the synthesis of certain surfactants and emulsifiers.

Basic Information

Product Name	4-Penten-1-ol
CAS No.	821-09-0
Molecular Formula	C5H10O
Molecular Weight	86.13 g/mol
Synonyms	4-Penten-1-ol; 4-Pentenol; 1-Penten-5-ol; Allylcarbinol; 5-Hydroxy-1-pentene; Homoallyl alcohol; Pent-4-en-1-ol; 4-Pentenyl alcohol
EINECS	212-485-8

Quality Control

Our 4-Penten-1-ol is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) confirming identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep container tightly sealed when not in use to prevent evaporation and moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.428 - 1.432
Density (20°C)	0.83 - 0.85 g/mL

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