3,3-DIMETHYLGLUTARIC ANHYDRIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4160-82-1 |
| Product name | 3,3-DIMETHYLGLUTARIC ANHYDRIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 3,3-DIMETHYLGLUTARIC ANHYDRIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3,3-DIMETHYLGLUTARIC ANHYDRIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Key intermediate in the synthesis of the antiepileptic drug brivaracetam | Undergoes ring-opening amidation with ammonia or amines to construct the pyrrolidinone ring structure |
| Organic Synthesis | Monomer for preparing chiral diols, dicarboxylic acids, and functionalized polyesters | Introduces hydroxyl or carboxyl functional groups via selective hydrolysis, reduction, or alcoholysis |
| Polymer Materials | Copolymerizable monomer for synthesizing heat-resistant polyimides and polyester resins | Participates in condensation polymerization with diamines or diols to yield high-performance polymers containing alicyclic anhydride structures |
Manufacturing Quality Control of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Separates sample components using gas chromatography; quantifies main component purity via peak area normalization or external standard method. Suitable for volatile anhydride compounds. |
| Content Assay | High-Performance Liquid Chromatography (HPLC) | Separation using a reversed-phase column with UV detection (e.g., at 210 nm); quantification by external standard method, offering high sensitivity and good reproducibility. |
| Water Content | Karl Fischer Titration | Determines trace water content using coulometric or volumetric methods; suitable for quality control of moisture-sensitive anhydride compounds. |
| Acid Value / Free Acid | Acid-Base Titration | Titrates with a standard alkaline solution (e.g., NaOH in ethanol) to determine free acids generated after hydrolysis; calculates acid value to assess the degree of anhydride hydrolysis. |
| Appearance and Color | Visual Color Comparison / Colorimeter | Observes samples visually under standard lighting or quantitatively measures color using a colorimeter to ensure compliance with requirements for white to slightly yellow solid. |
| Melting Point | Capillary Melting Point Determination | Measures the melting temperature range of the sample using a digital melting point apparatus to assess purity and consistency of crystal structure. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Sealed sample is heated; volatile solvents in the headspace are detected by GC-FID or GC-MS to monitor residual organic solvents from the manufacturing process. |
| Structure Confirmation | Fourier Transform Infrared Spectroscopy (FTIR) | Verifies molecular structure through characteristic functional group absorption peaks (e.g., anhydride C=O doublet at ~1800 cm⁻¹ and ~1750 cm⁻¹). |
| Impurity Profile Analysis | Gas Chromatography-Mass Spectrometry (GC-MS) | Separates and identifies unknown impurity structures to assist in establishing an impurity profile, supporting method development and stability studies. |
| Heavy Metal Residues | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, measures concentrations of heavy metals such as lead, cadmium, mercury, and arsenic to comply with pharmacopeial or industrial safety standards. |
Technical Specifications of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 78–82°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 3,3-DIMETHYLGLUTARIC ANHYDRIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
Safety Information of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 3,3-DIMETHYLGLUTARIC ANHYDRIDE
Industrial 3,3-DIMETHYLGLUTARIC ANHYDRIDE 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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