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ChemicalBook >> CAS DataBase List >>tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate

tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate

tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate Structure
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate structure
CAS No.
6337-43-5
Chemical Name:
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
Synonyms
B-CAP;Hostavin B-CAP;NSC 38065;WSP UV-2000;Einecs 228-726-5;UV ABSORBER B-CAP;UV absorber UV-988;p-Phenylenebis(methylenemalonic acid) tetraethyl ester;tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate;Tetra-ethyl-2,2’-(1,4-phenylene-dimethylidene)-bismalonate
CBNumber:
CB7923764
Molecular Formula:
C22H26O8
Molecular Weight:
418.44
MDL Number:
MOL File:
6337-43-5.mol
Last updated:2026-05-28 04:21:56
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tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate Properties

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)  Exclamation Mark (GHS07)
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(5)

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
aablocks AA00ED1R 1,1′,3,3′-Tetraethyl 2,2′-(1,4-phenylenedimethylidyne)bis[propanedioate] 98 6337-43-5 5g $29 2026-05-28 Buy
aablocks AA00ED1R 1,1′,3,3′-Tetraethyl 2,2′-(1,4-phenylenedimethylidyne)bis[propanedioate] 98.0% 6337-43-5 25g $58 2026-05-28 Buy
aablocks AA00ED1R 1,1′,3,3′-Tetraethyl 2,2′-(1,4-phenylenedimethylidyne)bis[propanedioate] 98.0% 6337-43-5 100g $75 2026-05-28 Buy
Product number Packaging Price Buy
T4315 25G $27 Buy
T4315 100G $93 Buy
AA00ED1R 5g $29 Buy
AA00ED1R 25g $58 Buy
AA00ED1R 100g $75 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

tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate Suppliers

Global Suppliers ( 72)
Supplier Tel Email Country ProdList Advantage
Shanghai Fansheng Chemical Technology Co., LTD 021-33927391-803 15601735299 danty@function-chem.com China 31 58
Nanyang Runhong Pharmaceutical Technology Co., Ltd 17637776888 17637776888@163.com China 23 58
Xinyang Longye Chemical Products Co., Ltd. 15737681111 705829620@qq.com China 293 58
Deltachem (Qingdao) Co., Ltd 18766299236 summerzhai@deltachem.net China 163 58
Xiangyang Runtongda Chemical Co., Ltd. 0710-3535121 13508666631 xfurunda@163.com China 21 58
Qingdao Jade New Material Technology 0532-68077006 13658692156 zandrew@jadenmtc.com China 302 58
Hubei widely chemical technology Co., Ltd. 17771478861 13419635609 3525818213@qq.com China 1887 55
Wuhai Shuou Technology Co., Ltd. 17792809151;18872220797 2355916837@ycphar.com China 6120 55
Jiangxi Lotchem Co., Ltd. 0791-0791-85061535 15270827708 lancetu@jxlotchem.com China 300 58
Qingdao Truelight functional Materials Technology Co., Ltd. 0532-81159002 13573844393 info@truelightchem.com China 173 58
Supplier Advantage
Shanghai Fansheng Chemical Technology Co., LTD 58
Nanyang Runhong Pharmaceutical Technology Co., Ltd 58
Xinyang Longye Chemical Products Co., Ltd. 58
Deltachem (Qingdao) Co., Ltd 58
Xiangyang Runtongda Chemical Co., Ltd. 58
Qingdao Jade New Material Technology 58
Hubei widely chemical technology Co., Ltd. 55
Wuhai Shuou Technology Co., Ltd. 55
Jiangxi Lotchem Co., Ltd. 58
Qingdao Truelight functional Materials Technology Co., Ltd. 58

View Latest Price from tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate pictures 2026-08-25 Tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
 $2.20-8.80 1kg 99%min 1000kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
UV ABSORBER B-CAP pictures 2026-06-02 UV ABSORBER B-CAP
6337-43-5
 25KG 99 20 QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD
tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate pictures 2025-04-15 tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
6337-43-5
 $10.00 1kg 99% 20ton Hebei Zhuanglai Chemical Trading Co.,Ltd

6337-43-5 (tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate) Related Search:

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tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate [2,2'-(1,4-Phenylene)bis(ethene)]-1,1,1',1'-tetracarboxylic acid tetraethyl ester α,α'-Bis(ethoxycarbonyl)-1,4-benzenedipropenoic acid diethyl ester Einecs 228-726-5 Propanedioic acid, 2,2'-(1,4-phenylenedimethylidyne)bis-, 1,1',3,3'-tetraethyl ester Propanedioic acid, 2,2'-(1,4-phenylenedimethylidyne)bis-, tetraethyl ester NSC 38065 p-Phenylenebis(methylenemalonic acid) tetraethyl ester UV ABSORBER B-CAP tetraethyl-2,2′-[1,4-phenylenebis(methanylylidene)]dimalonate WSP UV-2000/p-Phenylenebis(methylenemalonic acid) tetraethyl ester WSP UV-2000 High purity CAS 6337-43-5 tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate in stock iethyl2-[[4-(3-ethoxy-2-ethoxycarbonyl-3-oxoprop-1-enyl)phenyl]methylidene]propanedioate Tetra-ethyl-2,2’-(1,4-phenylene-dimethylidene)-bismalonate B-CAP Hostavin B-CAP UV absorber UV-988 diethyl 2-[[4-(3-ethoxy-2-ethoxycarbonyl-3-oxoprop-1-enyl)phenyl]methylidene]propanedioate 6337-43-5