Zhejiang Realsun Chemical Co., Ltd. is one of the most reliable manufacturers and suppliers of 1,2-pentanediol in China. If you're going to buy high quality 1,2-pentanediol, welcome to get pricelist and free sample from our factory. Good service and low price are available.
- Product Name:1,2-Pentanediol

Also Known As: PTD
CAS No.: 5343-92-0
Molecular Formula: C₅H₁₂O₂
Appearance: Colorless, clear, low-viscosity liquid with no noticeable odor
Purity: ≥99.0%
Grade: Industrial grade for personal care and cosmetics applications
1,2-Pentanediol is a low-molecular-weight diol with moisturizing and antimicrobial properties. It is used as a multifunctional ingredient and preservative booster in personal care formulations and as a chemical intermediate for the synthesis of propiconazole.
The current product specification is intended for personal care and agrochemical applications. Electronic-grade and injectable pharmaceutical-grade products are not currently mass-produced.
|
Name |
1,2-Pentanediol |
|
CAS number |
5343-92-0 |
|
Molecular formula |
C5H12O2 |
|
Molecular weight |
104.15 |
|
Melting point |
50.86°C |
|
Boiling point |
206 °C |
|
Flash point |
104 °C |
|
Storage conditions |
Keep in dark place,Sealed in dry,Room Temperature |
|
Form |
liquid |
|
Color |
Transparent, colorless to light yellow |
Technical Specifications
A batch-specific COA with complete GC testing results is available for each shipment.
|
Test Item |
Standard Personal Care Grade |
|
Assay Purity |
≥99.00% |
|
Water Content |
≤300 ppm |
|
Color |
≤15 APHA |
|
Density at 25°C |
0.970–0.972 g/cm³ |
|
Boiling Point at Atmospheric Pressure |
206°C |
For customers with application-specific specifications, additional technical requirements can be reviewed before order confirmation.
Applications
Personal Care & Cosmetics
1,2-Pentanediol is used in a range of personal care formulations as a moisturizing and antimicrobial formulation component.
Typical applications include:
• Facial masks
• Creams
• Sunscreens
• Serums
• Shampoos
• Shower gels
In skincare formulations, it can support moisture retention and help improve product preservation performance. In hair and body care formulations, it can also function as a formulation aid and preservation booster.
Formulation Consideration
For cosmetic manufacturers, impurity control is an important consideration when selecting 1,2-pentanediol for export-oriented formulations. Higher levels of olefin-related impurities may affect formulation quality and skin compatibility.
Liansheng supplies high-purity 1,2-pentanediol with controlled impurity levels for personal care applications and overseas formulation requirements.

Agrochemical Applications
1,2-Pentanediol is used as an upstream synthetic intermediate in the production of triazole fungicides such as propiconazole.
It contributes to the synthesis of the active molecular structure and supports the production of agrochemical intermediates used in crop protection formulations.
Impurity Control
For agrochemical manufacturers, impurity profiles can affect downstream synthesis and product registration requirements. Controlled production and purification help provide a more consistent raw material for customers operating under overseas regulatory requirements.
Polymers & Coatings
1,2-Pentanediol can be used as a formulation aid in water-based acrylic and polyurethane systems.
Potential functions include:
• Solubilization support
• Preservation support
• Formulation stability
• Reduced reliance on certain high-VOC aromatic solvents
It can be considered for water-based coating systems where low-VOC formulation requirements and controlled raw material quality are important.
Regulatory & Quality Documentation
U.S. Regulatory Status
1,2-Pentanediol is listed on the existing U.S. TSCA chemical substance inventory. Additional PMN submission is therefore not required for the substance under the stated inventory status.
Customers can request relevant regulatory documentation for import and compliance review before shipment.
Quality Management
The production facility has completed the required environmental assessment and maintains relevant production safety and pollutant discharge permits.
The facility is certified to:
• ISO 9001
• ISO 14001
Relevant documentation can be provided to support customer supplier qualification and EHS review.
Documentation Available
Depending on customer requirements, the following documents can be provided:
• Chinese and English GHS-compliant SDS/MSDS
• Batch-specific COA
• Original GC test results and chromatograms
• Manufacturer qualification documents
• Certificate of Origin
• SGS third-party testing reports upon request
Supply Capability
Production Capacity
A dedicated 1,000-ton-per-year 1,2-pentanediol synthesis and distillation line is currently in operation.
Upstream olefin raw materials are produced in-house, helping reduce dependence on external crude intermediates and supporting more stable production throughout the year.
Inventory & Order Support
The product is stored in dedicated, temperature-controlled and sealed storage tanks with separate storage areas.
Safety stock is maintained for regular orders.
Available order quantities include:
• 25 kg R&D samples
• 200 kg orders
• IBC quantities
• Full-container orders
• Annual supply agreements
Long-Term Supply
For qualified overseas customers, 1–3-year annual framework agreements can be considered.
Credit-term qualification and written delivery arrangements can also be discussed based on customer requirements.
Lead Time
• Domestic stock: Typically available for dispatch within 3 days
• Full-container export orders: Generally 7–10 days for hazardous chemical declaration and customs clearance, subject to order quantity and shipping schedule
Packaging & International Logistics
1,2-Pentanediol is supplied as a liquid at normal ambient temperatures and does not present a solidification risk under standard storage and transportation conditions.
Standard Export Packaging
R&D Samples
• 25 kg food-grade plastic drums
• PE inner liner
• Sealed and light-protected packaging
Regular Export Shipments
• 210 L heavy-duty corrosion-resistant plastic drums
• Net weight: 190 kg per drum
• Double-layer leak-proof sealing gaskets
Large-Volume Orders
• 1,000 kg sealed IBC containers
• Customized insulated ISO tank containers for suitable long-term orders
Transportation Support
Moisture & Packaging Protection
Export packaging is fully sealed to minimize exposure to air and moisture. Under normal ocean transportation conditions of approximately 45 days, water content, purity and impurity levels are expected to remain within the specified product requirements when properly handled.
Export Documentation
Our international trade team can support the required export declaration and hazardous chemical shipping documentation based on the applicable transportation and destination-country requirements.
Transportation Options
• Full-container-load ocean freight
• LCL ocean freight
• Air freight for samples where applicable
Chemical cargo insurance can also be arranged for international shipments.
Storage Conditions
Store in a cool, dry and sealed warehouse at room temperature.
Keep away from direct heat sources and conditions that may promote oxidation or impurity formation.
FAQ
What is the purity of your 1,2-Pentanediol?
+
-
The standard personal care grade has an assay purity of ≥99.0%.
What documentation is provided with each batch?
+
-
A batch-specific COA with complete GC testing results is available. Chinese and English SDS/MSDS and other relevant export documentation can also be provided according to customer requirements.
Can you provide samples for R&D or formulation testing?
+
-
Yes. 25 kg R&D samples are available for customers who need to conduct formulation or application testing.
What packaging options are available?
+
-
Standard options include 25 kg plastic drums, 210 L export drums and 1,000 kg IBC containers.
Customized packaging can be discussed for larger-volume orders.
Can you support long-term supply contracts?
+
-
Yes. For qualified overseas customers, 1–3-year annual framework supply agreements can be considered based on forecast volume and commercial terms.
What is the typical export lead time?
+
-
For full-container export orders, hazardous chemical declaration and customs clearance generally require 7–10 days, subject to order quantity, documentation and shipping schedules.
How should 1,2-Pentanediol be stored?
+
-
Store the product in a cool, dry and sealed warehouse at room temperature and keep it away from direct heat sources.
Will the product absorb moisture during ocean transportation?
+
-
The export packaging uses sealed, moisture-resistant packaging designed to minimize moisture ingress. Under normal transportation and storage conditions, the product is expected to maintain its specified water content and purity through a standard ocean transit period of approximately 45 days.
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