1,3-Propanediol

1,3-Propanediol is a high-performance polyol raw material with excellent moisturizing, solubility, and formulation compatibility. The product is stable, has a refreshing feel, and can be stably used in various systems, finding wide application in personal care, cosmetics, pharmaceuticals, and related industrial fields. In formulations, 1,3-Propanediol helps enhance moisturizing effects, improve the user experience, and strengthen the dispersion and stability of active ingredients, providing reliable functional support for the development of high-quality products.

 

Basic Introduction

INCI Name: Propylene Glycol

CAS Registry Number: 504-63-2

EINECS login number: 200-338-0

HS Code: 2905 320000

Molecular _formula : _C3H8O2​_​

Molecular weight: 76.09

Synonyms: 1,3 - dihydroxypropane

 

Application areas

Application areas	Application Notes
Food and beverage industry	As a food additive, humectant, and solvent, it can enhance the texture of food and keep it moist. It is widely used in food processing, such as in the production of candy, bread, and biscuits, and in the production of seasonings and flavorings.
Industrial manufacturing	As a coolant and antifreeze, it lowers the freezing point of the liquid and prevents the cooling system from freezing. It is commonly used in automobiles, industrial equipment, and air conditioning systems to ensure that the liquid can still flow under cold conditions.
Pharmaceutical manufacturing	As a carrier for drugs and vaccines, propylene glycol stabilizes and extends the shelf life of medications. In pharmaceutical processes, it serves as a solvent and diluent, and also plays a role in regulating temperature and humidity in pharmaceutical products.
Daily chemical industry	It possesses moisturizing and solvent properties, making cosmetics easier to apply and absorb. It can be added to skincare, cosmetic, and personal care products such as lotions, creams, and lipsticks.

Packaging

ton containers, leather drums, tank trucks

 

Stability and storage conditions

Propylene glycol is hygroscopic and should be stored in a tightly closed container in a cool, dry place, away from direct sunlight. Keep away from open flames, heat sources, and oxidizers.

 

Product Compliance

Indicator range	GB29216	CP	USP	EP
Senses	Colorless, transparent, viscous liquid	Colorless, clear, viscous liquid	Colorless, transparent, liquid	Colorless, transparent, liquid
Propylene glycol content	≥99.5	/	≥99.5	/
Moisture, %	≤0.2	≤0.2	≤0.2	≤0.2
Initial boiling point (°C)	≥185	/	/	/
Dry point (°C)	≤189	/	/	/
Burning residue, %	≤0.007	≤2.5mg	≤3.5mg	≤0.01
Specific gravity (25/25℃)	1.035-1.037	1.035-1.037	1.035-1.037	1.035-1.037
Sulfate, ppm	/	≤60	≤60	/
Chloride, ppm	/	≤70	≤70	/
acid value	Through the experiment	≤0.5-0.01 mol/L NaOH	≤0.2-0.1 mol/L NaOH	Through the experiment

Cornigs Polyols is a leading technology unicorn company in China, specializing in the research, development, production, and application of bio-based intermediates, bio-based materials, and bio-based polymers. Based on synthetic biology and materials science, and utilizing biomass raw materials and biomanufacturing methods, the company focuses on bio-based polyols as its core product.
Leveraging its leading technological capabilities and superior product quality, Cornigs has developed product lines including CORNIGS? biomaterials, Cornitol? polyols, CornMed? medical intermediates, and Cornzymes? biosynthesis. Its business covers bio-based polyols, biomaterials, biopharmaceuticals, biological products, modern agriculture, biochemistry, and new electronic materials, providing comprehensive product and technology solutions from demand assessment and technology development to product customization, application process development, and intellectual property sharing.
Cornigs has established the "Nanjing University of Technology - Cornigs Polyols Joint R&D Center" in collaboration with Nanjing University of Technology. This center houses a world-class biological development laboratory and boasts a team of nearly 30 consultants, academicians, and professors. The core team members come from prestigious Chinese universities such as Peking University, Sichuan University, and Nanjing University. The company has accumulated 35 authorized core intellectual property rights, including invention patents and software copyrights.
Headquartered in the Wuzhong Economic Development Zone of Suzhou, Cornigs has independently designed and built the first GMP-standard flexible automated production line in China. Utilizing an Industry 4.0 intelligent production control system, it has pioneered a new jet processing technology. High-precision online sensor matrices provide real-time monitoring, and intelligent algorithms and edge computing enable continuous flow production of multiple product categories and batches. This has created an industry-leading smart factory with advanced manufacturing capabilities, covering an area of ??50,000 square meters.