5,5'-Methylenedisalicylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 122-25-8 |
| Product name | 5,5'-Methylenedisalicylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent 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 5,5'-Methylenedisalicylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5,5'-Methylenedisalicylic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5,5'-Methylenedisalicylic acid
| Industry | Application | Process |
|---|---|---|
| Chemical Industry | Organic synthesis intermediate | Used to prepare other salicylic acid derivatives; serves as a reactive intermediate in condensation, esterification, and related reactions |
| Pharmaceutical Industry | Raw material for drug synthesis | Used to synthesize anti-inflammatory and antimicrobial drug compounds; incorporated as a structural building block into target molecules |
| Materials Science | Polymer modifier | Employed as a crosslinking agent or functional monomer in the synthesis of heat-resistant and chemically resistant polymers |
| Analytical Chemistry | Analytical reagent | Used in complexometric titration for metal ion analysis, particularly for detection of certain transition metal ions |
Manufacturing Quality Control of 5,5'-Methylenedisalicylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography. |
| Moisture Content | Karl Fischer titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| Residue on Ignition | Gravimetric analysis | Determination of non-volatile inorganic impurities by high-temperature ashing followed by weighing of residual mass. |
| Heavy Metals | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg) after acid digestion using plasma emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Barium sulfate gravimetry | Precipitation of sulfate as BaSO4 under controlled pH, followed by filtration and weighing of dried precipitate. |
| Melting Point | Capillary melting point apparatus | Thermal transition measurement where solid-to-liquid phase change is observed visually or optically. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separation and detection of residual solvents or low-MW organics using flame ionization detection. |
| pH of Aqueous Solution | Potentiometric pH measurement | Determination of hydrogen ion activity in a saturated aqueous suspension using calibrated glass electrode. |
| Color (APHA) | Visual comparison or spectrophotometric method | Evaluation of yellowness intensity relative to platinum-cobalt standards at 430 nm wavelength. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered light patterns from dispersed particles to calculate size distribution by Mie theory. |
| Bulk Density | Graduated cylinder method | Measurement of mass per unit volume for freely settled powder under standardized tapping conditions. |
Technical Specifications of 5,5'-Methylenedisalicylic acid
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 198-202°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Acid Value (mg KOH/g) | 380-400 mg KOH/g |
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 5,5'-Methylenedisalicylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of 5,5'-Methylenedisalicylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 5,5'-Methylenedisalicylic acid
Industrial 5,5'-Methylenedisalicylic 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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