620-32-6 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 620-32-6 |
| Product name | 620-32-6 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial 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 620-32-6
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 620-32-6 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 620-32-6
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Intermediate in the synthesis of antitumor agents (e.g., chlorambucil derivatives), antimicrobials, and anti-inflammatory drugs | Sodium benzylsulfonate is prepared via reaction of benzyl chloride with sodium sulfite, followed by oxidation to benzyl sulfone; alternatively, benzyl sulfone is prepared by oxidation of benzyl mercaptan |
| Organic Synthesis | Sulfone-based protecting group for stabilizing carbocations, used for functional group protection and deprotection in multistep syntheses | Reacts with Grignard or organolithium reagents under basic conditions to generate stable α-sulfonyl carbanions for C–C bond formation; deprotection is typically achieved via amalgamated sodium or Raney nickel hydrogenolysis |
| Materials Science | Monomer modifier for high-performance polymers (e.g., polysulfones, polyarylsulfones) to enhance thermal stability and mechanical strength | Copolymerized with bisphenol A, 4,4′-dichlorodiphenyl sulfone, etc., introducing sulfone side chains via nucleophilic substitution condensation |
| Pesticide Intermediates | Intermediate in the synthesis of sulfonyl-containing insecticides and fungicides (e.g., analogues of fluthiacet-methyl) | Introduces the benzyl sulfone moiety into heterocyclic cores through multistep reactions including chlorination, nitration, reduction, and cyclization |
Manufacturing Quality Control of 620-32-6
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard under optimized chromatographic conditions. |
| Appearance | Visual Inspection | Assessment of physical state and color against established specifications using transmitted light in a clear glass container. |
| Melting Point | Capillary Melting Point Determination | Thermal transition observed as the temperature at which solid phase transforms to liquid, measured using calibrated apparatus. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration quantifying water via iodine generation proportional to water content in the sample. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measurement of non-volatile inorganic residue after high-temperature ashing at 700–800 °C. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) or ICP-OES | Quantification of trace metal impurities by atomic absorption or emission intensity at element-specific wavelengths after acid digestion. |
| Chloride Impurity | Ion Chromatography (IC) or Potentiometric Titration | Separation and quantification of chloride anions via conductivity detection (IC) or argentometric endpoint detection (titration). |
| Sulfone Group Integrity | Fourier Transform Infrared Spectroscopy (FT-IR) | Verification of characteristic S=O stretching vibrations (~1300–1350 cm⁻¹ and ~1140–1170 cm⁻¹) and aromatic C–H patterns. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) with UV detection | Separation and quantification of structurally related impurities (e.g., benzyl alcohol, benzoic acid, sulfoxides) using reversed-phase C18 column and UV absorbance. |
| Acid Value | Acid-Base Titration (NaOH, phenolphthalein indicator) | Neutralization of acidic impurities (e.g., residual sulfonic acids) with standardized sodium hydroxide solution. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light to detect chiral impurities or enantiomeric contamination (though benzyl sulfone is achiral, method verifies absence of optically active contaminants). |
Technical Specifications of 620-32-6
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 62.0–65.0°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| 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 620-32-6
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 620-32-6
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Industrial 620-32-6 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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