alpha-Sulfophenylacetic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 41360-32-1 |
| Product name | alpha-Sulfophenylacetic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeReagent 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 alpha-Sulfophenylacetic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk alpha-Sulfophenylacetic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of alpha-Sulfophenylacetic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) | Used as an intermediate in acylation reactions |
| Medical diagnostics | Production of chromogenic agents for diagnostic kits | Applied in coupling reactions to prepare labeled compounds |
| Dye manufacturing | Preparation of acid dyes | Involved in diazotization and coupling reactions |
| Analytical chemistry | Formulation of buffer solutions | Converted to salts via neutralization reactions |
| Food additives | Synthesis of preservatives | Modified via esterification or amidation prior to use |
Manufacturing Quality Control of alpha-Sulfophenylacetic acid
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, state, and presence of visible impurities under natural light or standard illumination. |
| Identification | Infrared Spectroscopy (IR) | Compare the infrared absorption spectrum of the sample with that of a reference standard to confirm the consistency of characteristic peaks for functional groups (such as sulfonic acid group, carboxyl group, and aromatic ring). |
| Proton Nuclear Magnetic Resonance (¹H-NMR) | Analyze the hydrogen spectrum of the sample in deuterated solvent. Confirm the molecular structure based on chemical shift, integration area, and splitting pattern. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with a UV detector (commonly at 254 nm or 210 nm). Separate and quantify the main component using a mobile phase system consisting of water and organic solvents (such as methanol/acetonitrile) with ion-pair reagents or buffer salts. |
| Acid-Base Titration | Utilize the acidity of carboxyl or sulfonic acid groups by titrating with a standard NaOH solution. Determine the endpoint using phenolphthalein or potentiometry to calculate the total acid content. | |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use the same conditions as content determination. Identify impurity peaks by relative retention time and calculate the content of each impurity using area normalization or external standard method. |
| Moisture | Karl Fischer Titration | Precisely determine the moisture content in the sample using a Karl Fischer reagent via coulometric or volumetric methods. |
| Sulfate Residue | Ion Chromatography (IC) | Determine the residual amount of free sulfate ions in the sample to evaluate the completeness of the sulfonation reaction and subsequent processing. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Digest the sample and measure the residual levels of heavy metals such as lead, cadmium, mercury, and arsenic. Ensure compliance with pharmacopoeia or industry limits. |
| Residue on Ignition | Sulfated Ash Test | After high-temperature incineration, add sulfuric acid for charring, then high-temperature ashing. Weigh the residue to assess the total amount of inorganic impurities. |
| pH Value | pH Meter Measurement | Prepare a solution of a certain concentration (e.g., 1% w/v), and measure the pH value using a calibrated pH meter to reflect the acidity strength and purity effects. |
Technical Specifications of alpha-Sulfophenylacetic acid
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 178–182°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 alpha-Sulfophenylacetic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of alpha-Sulfophenylacetic acid
Packaging of alpha-Sulfophenylacetic acid
Industrial alpha-Sulfophenylacetic 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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