Colorformer Yellow CK-37 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 144190-25-0 |
| Product name | Colorformer Yellow CK-37 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial 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 Colorformer Yellow CK-37
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Colorformer Yellow CK-37 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Colorformer Yellow CK-37
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food Coloring Agent | Used for coloring beverages, confectionery, and baked goods; added as required and uniformly dispersed |
| Cosmetics | Colorant for Color Cosmetics | Incorporated into formulations for eyeshadow, blush, and foundation to impart yellow hues |
| Pharmaceuticals | Coating or Tablet Coloring Agent | Employed as a pigment in tablets or capsules to differentiate drug types or enhance visual identification |
| Textiles | Fiber Dyeing | Applied in immersion dyeing or printing processes for synthetic or natural fibers; used with auxiliary agents |
| Plastics | Plastic Coloring | Added during plastic injection molding or extrusion to produce yellow plastic components |
Manufacturing Quality Control of Colorformer Yellow CK-37
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 420-450 nm. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using gradient HPLC with diode-array detection and spectral library matching. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents (e.g., methanol, acetone, DMF) by gas chromatography with flame ionization detection. |
| Heavy Metals (Total) | ICP-OES | Multi-element determination of Pb, Cd, Hg, As, Cr, and Ni after acid digestion, based on atomic emission intensities. |
| Sulfated Ash | Gravimetric Analysis | Measurement of inorganic residue mass after incineration at 700-750 C in a muffle furnace. |
| Water Content | Karl Fischer Titration | Coulometric or volumetric titration with iodine-based reagent to quantify water via stoichiometric redox reaction. |
| Particle Size Distribution | Laser Diffraction | Determination of size distribution in dry or dispersed state using Mie scattering theory applied to laser diffraction patterns. |
| pH of Aqueous Suspension | Potentiometric Measurement | Measurement of hydrogen ion activity in a standardized 1% w/v aqueous suspension using calibrated pH electrode. |
| Bulk Density | Tap Density Method | Determination of mass per unit volume after controlled mechanical tapping of a known powder mass in a graduated cylinder. |
| Microbial Contamination | Membrane Filtration | Enumeration of aerobic mesophilic microorganisms by filtration, membrane transfer to agar media, and colony counting after incubation. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride anions using suppressed conductivity detection after anion-exchange chromatography. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid phase, observed visually under controlled heating rate. |
Technical Specifications of Colorformer Yellow CK-37
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 185–189 °C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic, non-offensive |
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 Colorformer Yellow CK-37
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Colorformer Yellow CK-37
Packaging of Colorformer Yellow CK-37
Industrial Colorformer Yellow CK-37 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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