ChemicalBook >> CAS DataBase List >>tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
- CAS No.
- 6337-43-5
- Chemical Name:
- tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
- Synonyms
- B-CAP;NSC 38065;WSP UV-2000;Hostavin B-CAP;Einecs 228-726-5;UV ABSORBER B-CAP;p-Phenylenebis(methylenemalonic acid) tetraethyl ester;tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate;Tetra-ethyl-2,2’-(1,4-phenylene-dimethylidene)-bismalonate;tetraethyl-2,2′-[1,4-phenylenebis(methanylylidene)]dimalonate
- CBNumber:
- CB7923764
- Molecular Formula:
- C22H26O8
- Molecular Weight:
- 418.44
- MDL Number:
- MOL File:
- 6337-43-5.mol
Last updated:2026-05-12 09:14:19
| Product description | Number | Pack Size | Price |
| Tetraethyl 2,2'-[1,4-Phenylenebis(methaneylylidene)]dimalonate | T4315 | 25G | $27 |
| Tetraethyl 2,2'-[1,4-Phenylenebis(methaneylylidene)]dimalonate | T4315 | 100G | $93 |
| More product size | |||
| Melting point | 136-137℃ |
|---|---|
| Boiling point | 484.4±45.0 °C(Predicted) |
| Density | 1.195 |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 1mg/L at 22℃ |
| InChI | InChI=1S/C22H26O8/c1-5-27-19(23)17(20(24)28-6-2)13-15-9-11-16(12-10-15)14-18(21(25)29-7-3)22(26)30-8-4/h9-14H,5-8H2,1-4H3 |
| InChIKey | YUOKTNQLLUHUEK-UHFFFAOYSA-N |
| SMILES | C1(/C=C(\C(OCC)=O)/C(OCC)=O)=CC=C(/C=C(/C(OCC)=O)\C(OCC)=O)C=C1 |
| LogP | 3.39 at 23℃ |
| EPA Substance Registry System | Propanedioic acid, 2,2'-(1,4-phenylenedimethylidyne)bis-, tetraethyl ester (6337-43-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H317 |
| Precautionary statements | P261-P272-P280-P302+P352-P333+P313-P321-P363-P501 |
| TSCA | TSCA listed |
| REACH Registrations | Active |
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate price More Price(2)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | T4315 | Tetraethyl 2,2'-[1,4-Phenylenebis(methaneylylidene)]dimalonate | 6337-43-5 | 25G | $27 | 2026-04-30 | Buy |
| TCI Chemical | T4315 | Tetraethyl 2,2'-[1,4-Phenylenebis(methaneylylidene)]dimalonate | 6337-43-5 | 100G | $93 | 2026-04-30 | Buy |
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate Chemical Properties,Uses,Production
Uses
UV-988 is a high-absorption UV absorber developed specifically for transparent polymer materials. It effectively absorbs the UVB band of ultraviolet light, which is sensitive to PC/PET/PMMA materials, reducing UV damage to the substrate. This allows the material to withstand various weather conditions and maintain good optical and physical properties even after long-term use. Consequently, it extends the lifespan of solar panels and films, achieving the goal of aging resistance.
Flammability and Explosibility
Non flammable
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 69)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16513 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21588 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29816 | 58 |
| QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD | +86-（+86-532）68077006 13658692156 | zandrew@jadenmtc.com | China | 222 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569262 +86-15003564040 | 1056@dideu.com | China | 3979 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8828 | 58 |
| Jiangxi Lotchem Co.,Ltd. | +8615270827708 | lancetu@jxlotchem.com | CHINA | 338 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-04-17 | Tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
|
US $2.20-8.80 / kg | 1kg | 99%min | 1000kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
 |
2025-04-15 | tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
|
US $10.00 / kg | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co.,Ltd | |
 |
2024-09-20 | UV ABSORBER B-CAP
6337-43-5
|
US $0.00 / KG | 25KG | 99 | 20 | QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD |
-
- Tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
- US $2.20-8.80 / kg
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
- US $10.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
-
- UV ABSORBER B-CAP
6337-43-5
- US $0.00 / KG
- 99
- QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD
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High purity CAS 6337-43-5 tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate in stock
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6337-43-5
