Description

1,2-Propanediol,Ar is a high-purity grade of propylene glycol specifically processed for analytical and research applications. This compound is valued for its consistent quality and low impurity profile, which is critical for precise laboratory work and method development. It serves as a versatile solvent and reagent in analytical chemistry, pharmaceutical research, and the development of high-performance formulations where traceability and purity are paramount.

Application

• Analytical Chemistry: Used as a high-purity solvent or reagent in chromatography (HPLC, GC), spectroscopy, and as a standard for calibration.
• Pharmaceutical Research & Development: Employed in the synthesis and purification of active pharmaceutical ingredients (APIs) and as a component in analytical method development.
• Electronics Manufacturing: Acts as a solvent in photoresist strippers and cleaning agents for semiconductor and printed circuit board (PCB) production.
• Cosmetics & Personal Care R&D: Serves as a high-purity humectant and solvent in the formulation of skin care products, lotions, and other personal care items during development stages.
• Laboratory Reagent: Functions as a key component in buffer solutions, extraction processes, and various chemical syntheses requiring a reliable, pure glycol.

Basic Information

Product Name	1,2-Propanediol,Ar
CAS No.	128439-95-2
Molecular Formula	C3H8O2
Molecular Weight	76.09 g/mol
Synonyms	Propylene Glycol, Analytical Reagent Grade; 1,2-Dihydroxypropane; Methyl Ethylene Glycol; (±)-1,2-Propanediol; PG, AR Grade; α-Propylene Glycol; 1,2-Propylene Glycol
EINECS	Contact for details

Quality Control

Our 1,2-Propanediol,Ar is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity suitable for analytical applications. Quality is verified through comprehensive testing, including assay, impurity profiling, and physical property checks. A Certificate of Analysis (COA) detailing all test results 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, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless, clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.432 - 1.434
Specific Gravity (20/20°C)	1.035 - 1.040

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