METHYL HYDROGEN PHTHALATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4376-18-5 |
| Product name | METHYL HYDROGEN PHTHALATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty GradeCosmetic GradeFood 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 METHYL HYDROGEN PHTHALATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk METHYL HYDROGEN PHTHALATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of METHYL HYDROGEN PHTHALATE
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Intermediate for polyvinyl chloride (PVC) plasticizers | Serves as a key precursor in the synthesis of dimethyl phthalate and high-molecular-weight phthalate plasticizers (e.g., DOP, DINP), undergoing further conversion via transesterification or acylation |
| Organic Synthesis | Intermediate for pharmaceuticals and agrochemicals | Used in synthesizing anticancer agents (e.g., etoposide derivatives), fungicides (e.g., benomyl-type compounds), and plant growth regulators, leveraging hydroxyl/carboxyl functional groups in condensation, amidation, or alkylation reactions |
| Coatings & Inks | Monomer component for modified alkyd resins | Copolymerized with polyols (e.g., glycerol, pentaerythritol) to introduce flexible segments, enhancing film flexibility and adhesion; typically conducted via melt condensation at 180–220 °C |
| Fine Fragrances Industry | Fixative and base fragrance component | Acts as a synthetic intermediate for low-volatility aromatic ester fragrances, employed in formulating jasmine-, lily-of-the-valley-type accords; modified via selective reduction or aromatic ring substitution prior to use |
Manufacturing Quality Control of METHYL HYDROGEN PHTHALATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at 220-230 nm. |
| Appearance | Visual inspection | Assessment of physical state and color by observation against standard white background under controlled lighting. |
| Melting Point | Capillary melting point apparatus | Determination of temperature range at which solid transitions to liquid, indicating crystallinity and purity. |
| Acid Value | Acid-base titration with NaOH | Neutralization of carboxylic acid groups using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Water Content | Karl Fischer titration | Electrochemical quantification of water via iodine-sulfur dioxide reaction in anhydrous methanol-based reagent. |
| Residue on Ignition | Gravimetric analysis | Measurement of non-volatile inorganic residue after high-temperature ashing at 700-800 C. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using lead as the limiting metal surrogate. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and conductivity detection of chloride anions in aqueous extract after sample dissolution and filtration. |
| Sulfated Ash | Gravimetric analysis | Determination of inorganic sulfate residue after combustion with sulfuric acid treatment and subsequent ignition. |
| Related Substances | HPLC with gradient elution | Identification and quantification of structurally similar impurities (e.g., phthalic acid, dimethyl phthalate) using retention time and response factors. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Detection and quantification of residual solvents (e.g., methanol, acetone) using flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion via light scattering to determine D10, D50, and D90 values. |
Technical Specifications of METHYL HYDROGEN PHTHALATE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 78-82°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 340-360 mg KOH/g |
| Heavy Metals | <=10 ppm |
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 METHYL HYDROGEN PHTHALATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of METHYL HYDROGEN PHTHALATE
Packaging of METHYL HYDROGEN PHTHALATE
Industrial METHYL HYDROGEN PHTHALATE 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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