2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopen… 16691-79-5

About 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96%

2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone is an ester carrying the CAS registry number 16691-79-5, specified at 96% purity. Formula C21H16O5, molecular weight 348.3 g/mol. The IUPAC name is dimethyl 2-oxo-4,5-diphenylcyclopenta-3,5-diene-1,3-dicarboxylate.

The material typically appears as a light yellow to brown powder or crystalline powder. Store sealed in a dry, well-ventilated location away from incompatible materials. Good laboratory practice and suitable PPE are recommended during handling.

Typical applications include organic synthesis and diagnostic assays. Typical end-use sectors are pharmaceutical manufacturing, academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
Diagnostic assays

Industries

Specifications & identifiers

Chemical identifiers
Product name	2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96%
Catalogue No.	VQ-008685
CAS Number	16691-79-5
IUPAC name	dimethyl 2-oxo-4,5-diphenylcyclopenta-3,5-diene-1,3-dicarboxylate
Molecular formula	C₂₁H₁₆O₅
Molecular weight	348.3 g/mol
Exact mass	348.0998
Purity / assay	96%
HSN code	29420090
InChIKey	NTXFYWYVVGMAGT-UHFFFAOYSA-N
SMILES	COC(=O)C1=C(C(=C(C1=O)C(=O)OC)C2=CC=CC=C2)C3=CC=CC=C3
PubChem CID	2825971

Physical properties
Physical form	Powder
Appearance	Light yellow to brown powder or crystalline powder
LogP (XLogP3)	3.3
H-bond donors / acceptors	0 / 5
TPSA	69.7 Å²
Synonyms	3,4-Diphenylcyclopentadienone-2,5-dicarboxylic Acid Dimethyl Ester, 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 3,5-Cyclopentadiene-1,3-dicarboxylic acid, 2-oxo-4,5-diphenyl-, dimethyl ester, 2-oxo-4,5-diphenylcyclopenta-3,5-diene-1,3-dicarboxylic acid dimethyl ester, 1,3-dimethyl 2-oxo-4,5-diphenylcyclopenta-1(5),3-diene-1,3-dicarboxylate, 2,5-bis-(carbomethoxy)-3,4-diphenylcyclopentadienone, Dimethyl 3,4-Diphenylcyclopentadienone-2,5-dicarboxylate, dimethyl 2-oxo-4,5-diphenyl-cyclopenta-3,5-diene-1,3-dicarboxylate

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96%?

The CAS Registry Number of 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% is 16691-79-5. It is also known as 3,4-Diphenylcyclopentadienone-2,5-dicarboxylic Acid Dimethyl Ester, 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 3,5-Cyclopentadiene-1,3-dicarboxylic acid, 2-oxo-4,5-diphenyl-, dimethyl ester.

What is the molecular formula and molecular weight of 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96%?

2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% has the molecular formula C21H16O5 and a molecular weight of 348.3 g/mol. Its IUPAC name is dimethyl 2-oxo-4,5-diphenylcyclopenta-3,5-diene-1,3-dicarboxylate.

Which grade and pack sizes of 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% can I order?

We supply 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% in (96%) grade, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96%?

Yes. Every lot of 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% be shipped internationally?

Yes. We export 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone, 96% worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.