M-METHYL RED Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 20691-84-3 |
| Product name | M-METHYL RED |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 M-METHYL RED
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk M-METHYL RED Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of M-METHYL RED
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Acid-base indicator (pH transition range: 7.4–9.6, red → yellow) | Used in titration analysis, pH test paper preparation, and visual determination of solution pH |
| Dye Industry | Intermediate for azo dyes | Participates in diazotization-coupling reactions to synthesize red or orange disperse dyes and acid dyes |
| Biological Staining | Adjunct reagent for histological staining | Applied as a counterstain or pH-sensitive staining reference reagent in microscopy |
Manufacturing Quality Control of M-METHYL RED
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies concentration based on absorbance at characteristic wavelength (e.g., ~505 nm) using Beer-Lambert law with reference standard. |
| Moisture Content | Karl Fischer Titration | Measures water content via stoichiometric reaction between water, iodine, sulfur dioxide, and base in methanol medium. |
| Loss on Drying | Gravimetric Analysis (Thermogravimetry) | Determines volatile matter by measuring mass loss after controlled heating (e.g., 105 C for 2 h) under specified conditions. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Measures inorganic impurities by ignition of sample to constant weight after sulfuric acid treatment. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomization and absorption measurement at specific wavelengths after wet digestion. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Detects chloride ions via argentometric titration using silver nitrate and a silver indicator electrode. |
| Sulfate Impurity | Gravimetric Analysis (Barium Sulfate Precipitation) | Measures sulfate as insoluble BaSO4 precipitate formed after addition of barium chloride in acidic medium. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents or low-MW organics using capillary column and flame ionization detection. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determines acidity/basicity of a defined aqueous suspension (e.g., 1% w/v) using calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension by analyzing angular variation of scattered laser light. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity. |
| Related Substances | High Performance Liquid Chromatography (HPLC-UV) | Separates and quantifies structurally related impurities using reversed-phase column and UV detection. |
Technical Specifications of M-METHYL RED
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Melting Point | 178-182°C |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 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 M-METHYL RED
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of M-METHYL RED
Packaging of M-METHYL RED
Industrial M-METHYL RED 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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