Description

(±)-1,2-Propanediol CAS NO 4254-16-4 is a versatile chiral diol and a key intermediate in organic synthesis. This compound is valued for its role as a building block in the production of pharmaceuticals, agrochemicals, and specialty polymers. It is essential for research and manufacturing in industries requiring high-purity chiral synthons, including fine chemicals, pharmaceuticals, and advanced material science.

Application

• Pharmaceutical Intermediate: A crucial chiral building block for synthesizing active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Synthesis: Used in the production of chiral pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Modifier: Serves as a monomer or chain extender in the synthesis of specialty polyesters and polyurethanes.
• Solvent & Reaction Medium: Acts as a polar aprotic solvent for various organic reactions and crystallization processes.
• Cosmetic & Personal Care Ingredients: Employed in the formulation of humectants and skin-conditioning agents.
• Chemical Research & Development: A standard reagent in asymmetric synthesis and methodological studies in academic and industrial labs.

Basic Information

Product Name	(±)-1,2-Propanediol
CAS No.	4254-16-4
Molecular Formula	C3H8O2
Molecular Weight	76.09 g/mol
Synonyms	DL-1,2-Propanediol; DL-Propylene Glycol; (±)-Propylene Glycol; rac-1,2-Propanediol; rac-Propylene Glycol; 1,2-Dihydroxypropane; DL-1,2-Dihydroxypropane; 2-Hydroxypropan-1-ol
EINECS	224-208-8

Quality Control

Our (±)-1,2-Propanediol is produced under a strict quality management system. We offer various grades, including technical and high-purity standards, to meet diverse industrial requirements. Certificates of Analysis (COA) are provided with each batch, detailing purity, chiral composition, and impurity profiles to ensure compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Enantiomeric Purity (Chiral GC/HPLC)	racemic mixture (approx. 50:50)
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.430 - 1.435
Specific Gravity (20°C)	1.035 - 1.045

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