2-Methyl-1,4-benzenedicarboxylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5156-01-4 |
| Product name | 2-Methyl-1,4-benzenedicarboxylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeMaterial Grade |
| Packaging | 25KG/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 2-Methyl-1,4-benzenedicarboxylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Methyl-1,4-benzenedicarboxylic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Methyl-1,4-benzenedicarboxylic acid
| Industry | Application | Process |
|---|---|---|
| Chemical Industry | Synthesis of polyester resins | Condensation polymerization with diols to produce polyesters |
| Plastics Manufacturing | Production of engineering plastics | Used as a monomer in polymerization reactions |
| Coatings Industry | Formulation of high-performance coatings | Employed in resin synthesis to enhance coating heat resistance and adhesion |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Utilized as an organic synthesis raw material for specific drug molecules |
| Fine Chemicals | Production of plasticizers | Used to synthesize phthalate-based plasticizers |
| Textile Industry | Manufacture of dye fixatives | Applied in the synthesis of dye crosslinking agents to improve color fastness |
Manufacturing Quality Control of 2-Methyl-1,4-benzenedicarboxylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration with NaOH | Quantifies carboxylic acid groups by neutralization with standardized sodium hydroxide solution using phenolphthalein or potentiometric endpoint detection. |
| Moisture Content | Karl Fischer Titration | Measures water content based on the stoichiometric reaction of iodine with sulfur dioxide and water in a methanol-based reagent. |
| Residue on Ignition | Gravimetric Analysis | Determines non-volatile inorganic impurities by ignition at 700-800 C and weighing the residual ash. |
| Heavy Metals | ICP-OES | Quantifies trace metal contaminants (e.g., Pb, Cd, Hg, As) after acid digestion by measuring element-specific atomic emission intensities. |
| Chloride Content | Potentiometric Titration with AgNO3 | Measures chloride ions via precipitation titration with silver nitrate using a silver indicator electrode. |
| Sulfated Ash | Gravimetric Analysis | Evaluates inorganic residue after combustion with sulfuric acid treatment followed by high-temperature incineration and weighing. |
| Melting Point | Capillary Melting Point Determination | Determines purity and identity by observing the temperature range at which solid transitions to liquid under controlled heating. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separates and quantifies structurally related compounds using reversed-phase chromatography and UV absorbance at 254 nm. |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Oven Drying | Measures volatile matter loss by weight difference before and after drying at 105 C for specified time. |
| Iron Content | AAS (Flame Atomic Absorption Spectroscopy) | Quantifies iron after sample digestion by measuring absorption of light at 248.3 nm by ground-state Fe atoms in an air-acetylene flame. |
| Appearance (Color and Clarity) | Visual Inspection against Standard Solutions | Assesses physical appearance by comparing sample solution (in specified solvent) to reference standards under controlled lighting. |
| pH of Aqueous Suspension | pH Meter Measurement | Determines acidity/basicity of a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
Technical Specifications of 2-Methyl-1,4-benzenedicarboxylic acid
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 245-249°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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-Methyl-1,4-benzenedicarboxylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Methyl-1,4-benzenedicarboxylic acid
Safety Information of 2-Methyl-1,4-benzenedicarboxylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2-Methyl-1,4-benzenedicarboxylic acid
Industrial 2-Methyl-1,4-benzenedicarboxylic acid 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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