Description

1,3-Propanediol (CAS NO 504-63-2) is a versatile, high-purity diol serving as a critical building block for advanced polymers and specialty chemicals. Its bifunctional nature and favorable properties make it a superior, sustainable alternative to traditional glycols in demanding formulations. This compound is essential for manufacturers in the polymer, cosmetic, pharmaceutical, and industrial lubricant sectors seeking performance and regulatory compliance.

Application

• Polymer Synthesis: A key monomer for producing high-performance polytrimethylene terephthalate (PTT) fibers and polyurethanes (PU).
• Cosmetics & Personal Care: Used as a humectant, solvent, and viscosity modifier in skin creams, lotions, and serums.
• Pharmaceutical Intermediates: Serves as a precursor and solvent in the synthesis of various active pharmaceutical ingredients (APIs).
• Industrial Fluids: Employed as a base or component in advanced lubricants, antifreeze, and heat transfer fluids.
• Food & Flavor Industry: Functions as a carrier solvent for flavors, colors, and food additives.
• Chemical Intermediate: Used in organic synthesis for producing plasticizers, adhesives, and cross-linking agents.

Basic Information

Product Name	1,3-Propanediol
CAS No.	504-63-2
Molecular Formula	C3H8O2
Molecular Weight	76.09 g/mol
Synonyms	Trimethylene Glycol; 1,3-Dihydroxypropane; Propane-1,3-diol; PDO; Bio-PDO; Zemea® (DuPont trade name); 1,3-Propylene Glycol
EINECS	207-997-3

Quality Control

Our 1,3-Propanediol is manufactured under a stringent quality management system. Each batch is tested to ensure it meets exacting specifications for purity, identity, and performance. Certificates of Analysis (COA) are provided and the product can be supplied to meet relevant standards such as USP, FCC, and REACH compliance for global markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, acids, and heat sources. The product is hygroscopic (moisture-sensitive).

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
Water Content (KF)	≤ 0.1%
Specific Gravity (20/20°C)	1.053 - 1.058
Refractive Index (20°C)	1.439 - 1.442

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