1,2,3,6-Tetrahydro-4-methylphthalic anhydride Bulk Supply for Industrial Use

China Factory Direct
CAS number 3425-89-6
Product name 1,2,3,6-Tetrahydro-4-methylphthalic anhydride
Stock Stock readily available; annual supply capacity exceeding 1,000 tons.
Grade Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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)
Ordering Procedure & Service Assurance
Inquiry
Inquiry
Submit requirements
Quotation
Quotation
Clear pricing
Spec
Spec Confirmation
Avoid mismatch
Sample
Sample Testing
Verify quality
Order
Order
Secure deal
Delivery
Delivery
On-time
Spec Confirmation
Sample Testing
Contract Protection
QC Inspection
On-time Delivery

QUOTE TYPE

FOB (Free On Board)
CIF (Cost, Insurance, Freight)
EXW (Ex Works)

PACKAGING TYPE

TOTAL QUANTITY(KG)

PREFERRED SHIPPING METHOD

Air Freight
Sea Freight

YOUR COMPANY

YOUR E-MAIL

Calculate Summary

Based on current marketvolatility and material availability.

CAS No:3425-89-6
QUOTE TYPE:--
PACKAGING TYPE:--
TOTAL QUANTITY:--
SHIPPING METHOD:--

Documents We Provide for 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

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 1,2,3,6-Tetrahydro-4-methylphthalic anhydride Supplier from China

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

Industrial Applications of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

Industry Application Process
Electronics Epoxy curing agent (for semiconductor packaging and printed circuit boards) Thermal curing
Composites Curing agent for reinforced plastics (e.g., wind turbine blades, automotive lightweight components) High-temperature, high-pressure molding
Coatings Crosslinker for weather-resistant coatings (industrial corrosion protection, marine coatings) Solvent evaporation/thermal curing
Adhesives Curing component for high-strength epoxy adhesives (structural adhesives for construction and aerospace) Ambient-temperature or elevated-temperature curing
Pharmaceutical Intermediates Synthesis of active pharmaceutical ingredients (e.g., antibiotics, antineoplastic agents) Catalytic reaction/purification

Manufacturing Quality Control of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

Detection Item Common Analytical Method Method Overview
Assay (Purity) Acid-Base Titration Quantifies acid anhydride content by hydrolysis with standardized NaOH and back-titration with HCl.
Color APHA Color Scale Compares sample color to platinum-cobalt standard solutions using visual or spectrophotometric matching.
Water Content Karl Fischer Titration Measures water via coulometric or volumetric reaction between water and iodine in pyridine/methanol medium.
Acid Number Acid-Base Titration Determines free carboxylic acid content by titration with KOH in ethanol/isopropanol.
Residue on Ignition Gravimetric Analysis Measures non-volatile inorganic impurities after high-temperature ashing and weighing.
Heavy Metals ICP-OES Quantifies metal impurities (e.g., Pb, Fe, Cu) by plasma excitation and elemental emission spectroscopy.
Chloride Content Potentiometric Titration Detects chloride ions using silver nitrate titrant and silver/silver chloride indicator electrode.
Refractive Index Refractometry Measures light bending angle in liquid sample at specified temperature to assess purity and composition.
Specific Gravity Pycnometry Determines density relative to water using calibrated glass pycnometer at controlled temperature.
Gas Chromatographic Purity GC-FID Separates and quantifies organic components using capillary column and flame ionization detection.
Melting Point Capillary Melting Point Apparatus Determines solid-to-liquid transition temperature range using calibrated heating block and capillary tube.
Appearance Visual Inspection Assesses physical state, clarity, and presence of suspended particles or phase separation under controlled lighting.

Technical Specifications of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

Test Item Specification
Appearance White crystalline solid
Purity >=98.5%
Water Content (KF) <=0.5%
Melting Point 72-76°C
Acid Value (mg KOH/g) 450-470 mg KOH/g
Total Impurities <=1.5%
Single Impurity <=0.5%
Color (APHA/Pt-Co) <=50
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 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

CAS/Product ID *Required fields
Lot/Batch Number *Required fields

NMR Spectra of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

Safety Information of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

Pictograms
Signal Word Danger
Safety Data Sheet

Packaging of 1,2,3,6-Tetrahydro-4-methylphthalic anhydride

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

Industrial 1,2,3,6-Tetrahydro-4-methylphthalic anhydride 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.

Industrial
Use
Bulk
Supply
Factory
Direct
ISO 9001
Certified
Samples
Available
Stable
Supply