ChemicalBook--->CAS DataBase List--->6337-43-5

6337-43-5

6337-43-5 Structure

6337-43-5 Structure
IdentificationBack Directory
[Name]

tetraethyl 2,2'-(1,4-phenylenedimethylidyne)bismalonate
[CAS]

6337-43-5
[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
tetraethyl-2,2′-[1,4-phenylenebis(methanylylidene)]dimalonate
WSP UV-2000/p-Phenylenebis(methylenemalonic acid) tetraethyl ester
α,α'-Bis(ethoxycarbonyl)-1,4-benzenedipropenoic acid diethyl ester
Propanedioic acid, 2,2'-(1,4-phenylenedimethylidyne)bis-, tetraethyl ester
[2,2'-(1,4-Phenylene)bis(ethene)]-1,1,1',1'-tetracarboxylic acid tetraethyl ester
Propanedioic acid, 2,2'-(1,4-phenylenedimethylidyne)bis-, 1,1',3,3'-tetraethyl ester
[EINECS(EC#)]

228-726-5
[Molecular Formula]

C22H26O8
[MOL File]

6337-43-5.mol
[Molecular Weight]

418.44
Chemical PropertiesBack Directory
[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)
Questions And AnswerBack Directory
[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.
Safety DataBack Directory
[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
Hazard InformationBack Directory
[Flammability and Explosibility]

Nonflammable
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