4,4’-(Ethyne-1,2-Diyl)Diphthalic Anhydride(CAS 129808-00-0)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 1G | In Stock | 14 USD
|
|
| 98% | RG | 5G | In Stock | 50 USD
|
|
|
|||||
Available NMR Spectrum
Verified In Stock
Fast Shipping ISO 9001
Quality System
Applications of 129808-00-0
| Industry | Application | Process |
|---|---|---|
| Polymer Materials | Synthesis of polyimide (PI) monomers for high-performance engineering plastics, films, and composites | Used as a dianhydride monomer in condensation polymerization with diamine monomers to produce polyimide |
| Electronics Industry | Manufacturing coverlay and base films for flexible printed circuit boards (FPCs), and alignment layers for liquid crystal displays (LCDs) | Imidization process to form polyimide films exhibiting excellent thermal stability, electrical insulation, and mechanical strength |
| Optoelectronics | Precursor for photosensitive polyimide (PSPI) used in photolithographically patterned insulating and buffer layers | Photolithographic patterning for semiconductor device packaging and insulation |
| Aerospace | High-temperature adhesives, composite matrix resins, or coatings | Thermal curing process leveraging high glass transition temperature and thermal stability |
| Advanced Packaging | Stress-buffering layers and redistribution layers (RDL) in chip-scale packaging (CSP) and wafer-level packaging (WLP) | Film formation via coating, photolithography, and curing processes |
Physical and chemical properties of 129808-00-0
Boiling Point |
633.9±40.0 °C(Predicted) |
|---|---|
Density |
1.65±0.1 g/cm3(Predicted) |
Exact Mass |
318.01600 |
LogP |
1.70760 |
Melting Point |
350 °C(dec.) |
Molecular Formula |
C18H6O6 |
Molecular Weight |
318.23700 |
PSA |
86.74000 |
Retrosynthesis analysis of 129808-00-0
Q&A for CAS 129808-00-0
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 129808-00-0
Pictograms |
![]() |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 129808-00-0
Operate under the ISO 9001 system
