2-Methylene-1,3-propanediol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3513-81-3 |
| Product name | 2-Methylene-1,3-propanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 2-Methylene-1,3-propanediol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Methylene-1,3-propanediol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Methylene-1,3-propanediol
| Industry | Application | Process |
|---|---|---|
| Coatings & Inks | Used as a reactive diluent and crosslinking monomer to enhance coating hardness, chemical resistance, and cure speed | Participates in free-radical UV or thermal curing reactions; copolymerized with acrylate monomers |
| Adhesives | Functions as a functional monomer to improve film flexibility, adhesion, and moisture resistance | Introduced as a crosslinker in acrylic or epoxy-modified adhesive formulations |
| Polymer Synthesis | Used to prepare hydroxymethyl-containing degradable polyesters and functional copolymers | Reacted via condensation or ring-opening polymerization with diacids, diols, or lactone monomers |
| Pharmaceutical Intermediates | Serves as a structural building block for synthesizing antiviral agents and heterocyclic compounds | Transformed through multi-step organic synthesis, including selective protection, oxidation, or cyclization |
Manufacturing Quality Control of 2-Methylene-1,3-propanediol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component using retention time and peak area against calibrated standard. |
| Water Content | Karl Fischer Titration | Measures water via coulometric or volumetric titration with iodine-based reagent. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralizes acidic impurities; endpoint detected by potentiometric or phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry at 430 nm | Compares sample color to APHA platinum-cobalt standards or measures absorbance at 430 nm. |
| Density at 20 C | Digital Density Meter | Determines mass per unit volume using oscillating U-tube principle. |
| Refractive Index at 20 C | Refractometry | Measures bending of light through sample at specified temperature to infer purity and concentration. |
| Residue on Evaporation | Gravimetric Analysis | Evaporates known volume at controlled temperature and weighs non-volatile residue. |
| Chloride Content | Ion Chromatography (IC) or Potentiometric Titration with AgNO3 | Separates and quantifies chloride ions (IC) or titrates with silver nitrate to form AgCl precipitate. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Atomizes sample and measures absorption of characteristic wavelength light by metal atoms. |
| Aldehydes (as Formaldehyde) | Spectrophotometry after DNPH Derivatization | Derivatizes aldehydes with 2,4-dinitrophenylhydrazine; measures hydrazone absorbance at ~450 nm. |
| Non-Volatile Matter | Gravimetric Analysis | Evaporates sample to dryness at 105 C and weighs residual solids. |
| Specific Optical Rotation | Polarimetry | Measures rotation of plane-polarized light induced by chiral compounds in solution. |
Technical Specifications of 2-Methylene-1,3-propanediol
| Test Item | Specification |
|---|---|
| Appearance | Brown liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | <=1.0 |
| Refractive Index (n20/D) | 1.450–1.460 |
| Relative Density (20°C/25°C) | 1.080–1.095 g/cm³ |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 2-Methylene-1,3-propanediol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Methylene-1,3-propanediol
Packaging of 2-Methylene-1,3-propanediol
Industrial 2-Methylene-1,3-propanediol Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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