Antioxidant HP136,2(3H)-Benzofuranone,5,7-bis(1,1-dimethylethyl)-3-(3,4-dimethylphenyl) Bulk Supply for Industrial Use

China Factory Direct
CAS number 164391-52-0
Product name Antioxidant HP136,2(3H)-Benzofuranone,5,7-bis(1,1-dimethylethyl)-3-(3,4-dimethylphenyl)
Stock Stock readily available; annual supply capacity exceeding 1,000 tons.
Grade Pharmaceutical GradeIndustrial GradeMaterial GradeFood Grade
Packaging 25KG/bag500KG/bag1000KG/bag
Sample Test Samples Available (Click to Request Samples)
COA View COA
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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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CAS No:164391-52-0
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Documents We Provide for 164391-52-0

COA TDS SDS NMR MOA Certificate of Origin Transport Report TSCA Declaration Production Flow Chart
Pre-sale: Only COA, SDS and NMR are available.
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 164391-52-0 Supplier from China

17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.

Industrial Applications of 164391-52-0

Industry Application Process
Plastics Industry Heat Stabilizer Added to plastics such as polyvinyl chloride (PVC) to prevent thermal degradation
Rubber Industry Antioxidant Used in rubber products to extend service life
Coatings Industry Aging Inhibitor Incorporated into coatings to prevent UV- and oxidation-induced degradation
Pharmaceutical Industry Excipient Used as an antioxidant in pharmaceutical packaging materials
Food Industry Food Additive Applied in food packaging materials to prevent oxidative spoilage of food

Manufacturing Quality Control of 164391-52-0

Detection Item Common Analytical Method Method Overview
Assay (purity) HPLC-UV Quantifies main component using reverse-phase HPLC with UV detection at 275 nm, based on peak area comparison against reference standard.
Melting Point Capillary Melting Point Apparatus Determines temperature range at which solid transitions to liquid, following ASTM D1565 or ISO 462.
Color (Gardner Scale) Visual Comparison or Spectrophotometer Measures yellowness intensity by comparing sample solution in toluene to Gardner color standards.
Ash Content Gravimetric Analysis (Ignition at 550 C) Residue mass after high-temperature incineration reflects inorganic impurities.
Volatile Matter Thermogravimetric Analysis (TGA) or Oven Drying Loss of mass upon heating at 105 C for 2 h indicates volatile impurities and residual solvents.
Moisture Content Karl Fischer Titration Electrochemical titration quantifies water via reaction with iodine and sulfur dioxide in methanol/pyridine medium.
Heavy Metals (as Pb) ICP-OES Multi-element detection after acid digestion; measures total heavy metal content by atomic emission intensity.
Chlorinated Impurities GC-ECD Detects trace chlorinated compounds using gas chromatography with electron capture detection.
Acid Number Acid-Base Titration (NaOH in isopropanol/toluene) Neutralizes acidic impurities with standardized NaOH; endpoint detected potentiometrically or by indicator.
Residue on Ignition Gravimetric Analysis (Ignition at 750 C) Measures non-volatile inorganic residue after controlled high-temperature ashing.
Particle Size Distribution Laser Diffraction Analyzes dispersed powder in liquid medium using Mie scattering theory to determine size distribution.
Bulk Density ASTM D1895 Method A Measures mass per unit volume of freely settled material in a calibrated cylinder.

Technical Specifications of 164391-52-0

Test Item Specification
Appearance White solid
Purity >=98.0% (GC-MS)
Melting Point 128–132°C
Water Content (KF) <=0.5%
Total Impurities <=2.0%
Single Impurity <=0.5%
Heavy Metals <=10 ppm
Residue on Ignition <=0.1%
Acid Value (mg KOH/g) <=0.5
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com

Download COA of 164391-52-0

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NMR Spectra of 164391-52-0

Packaging of 164391-52-0

We have a diverse range of chemicals in stock. Available in Bagged goods (25 kg.),Big bags (500 kg.), Big bags (1000 kg.).

Industrial 164391-52-0 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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