Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7… 1971915-89-5

Name: Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate
Brand: Vaqora Chemicals
SKU: VQ-028025

About Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate

Listed under CAS 1971915-89-5, Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate is an impurity of Sildenafil available from Vaqora Chemicals. With the molecular formula C19H24N4O5S, it has a molar mass of 420.5 g/mol. Its systematic (IUPAC) name is ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-5-yl)benzenesulfonate.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Sildenafil to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Sildenafil

View every impurity, metabolite and intermediate we list for Sildenafil.

Sildenafil impurities

Specifications & identifiers

Chemical identifiers
Product name	Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate
Catalogue No.	VQ-028025
CAS Number	1971915-89-5
IUPAC name	ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-5-yl)benzenesulfonate
Molecular formula	C₁₉H₂₄N₄O₅S
Molecular weight	420.5 g/mol
Exact mass	420.1467
Grade	Reference Standard
HSN code	38229090
InChIKey	DBEUWCBPDBKWCB-UHFFFAOYSA-N
SMILES	CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)OCC)OCC)C
PubChem CID	154631337

Physical properties
Physical form	Solid
LogP (XLogP3)	2.2
H-bond donors / acceptors	1 / 7
TPSA	120 Å²

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 Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate?

The CAS Registry Number of Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate is 1971915-89-5.

What is the molecular formula and molecular weight of Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate?

Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate has the molecular formula C19H24N4O5S and a molecular weight of 420.5 g/mol. Its IUPAC name is ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,5-d]pyrimidin-5-yl)benzenesulfonate.

What is Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate used for?

Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate is supplied as a characterised reference material related to Sildenafil. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate can I order?

We supply Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate?

Yes. Every lot of Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate 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 Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate be shipped internationally?

Yes. We export Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.