Description

Propanoic Acid, 3-Chloro-2-Hydroxy-, Propyl Ester is a specialized organic ester compound with the CAS registry number 81728-69-0. This chemical serves as a valuable synthetic intermediate and functional additive, prized for its unique combination of chlorinated and hydroxylated ester functionalities. It is primarily utilized by manufacturers and R&D chemists in the pharmaceutical, agrochemical, and specialty polymer sectors who require high-purity building blocks for complex synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a chlorinated hydroxy ester moiety.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where its specific structure imparts desired biological activity.
• Polymer Modification: Acts as a functional monomer or cross-linking agent to introduce chlorine and ester groups into polymer chains, enhancing properties like adhesion or flame retardancy.
• Organic Synthesis Reagent: Employed in research and fine chemical production for esterification reactions, nucleophilic substitutions, and as a protected form of a chlorinated hydroxy acid.
• Flavor & Fragrance Ingredient Synthesis: Serves as a precursor for creating complex ester compounds used in specialty aroma chemicals.

Basic Information

Product Name	Propanoic Acid, 3-Chloro-2-Hydroxy-, Propyl Ester
CAS No.	81728-69-0
Molecular Formula	C₆H₁₁ClO₃
Molecular Weight	166.60 g/mol
Synonyms	3-Chloro-2-hydroxypropyl propionate; Propyl 3-chloro-2-hydroxypropanoate; 2-Hydroxy-3-chloropropionic acid propyl ester; 3-Chloro-2-hydroxypropionic acid propyl ester; Propyl 3-chloro-2-hydroxypropionate; 81728-69-0; 3-Chloro-2-hydroxy-propionic acid propyl ester
EINECS	Contact for details

Quality Control

Our production of Propanoic Acid, 3-Chloro-2-Hydroxy-, Propyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting purity, physical properties, and safety data are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed due to potential sensitivity to moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.18 - 1.22
Refractive Index (20°C)	1.440 - 1.450

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