ChemicalBook > Product Catalog >Analytical Chemistry >Standard >Pharmaceutical Impurity Reference Standards >5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one

5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one

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5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Suppliers list
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Products Intro: Product Name:Sildenafil Impurity
CAS:1391053-95-4
Purity:98%+ Package:10mg;|30mg;|100mg
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Products Intro: Product Name:Sildenafil EP Impurity A
CAS:1391053-95-4
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Products Intro: Product Name:Isobutyl Sildenafil
CAS:1391053-95-4
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Products Intro: Product Name:Sildenafil EP Impurity A
CAS:1391053-95-4
Purity:0.95 Package:10mg; 25mg;50mg;100mg Remarks:Brand: QCS; Can provide COA, hydrogen spectrum, mass spectrometry, liquid phase; Level: Pharmaceutical Impurity Standard
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Products Intro: Product Name:Sildenafil EP Impurity A
CAS:1391053-95-4
Purity:95.8 Package:Customize Packaging (As per customer requirement in Miligram)

5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one manufacturers

  • Sildenafil Impurity
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  • $0.00 / 10mg
  • 2025-12-16
  • CAS:1391053-95-4
  • Min. Order: 10mg
  • Purity: 98%+
  • Supply Ability: 100000000
5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Basic information
Product Name:5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one
Synonyms:Sildenafil A;Sildenafil Impurity 1/Sildenafil EP Impurity A/Isobutyl Sildenafil/5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-(2-methylpropyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one;Isomer of Isobutyl Sildenafil;5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one;Isobutyl Sildenafil;Sildenafil EP IMpurity A;Sildenafil Related CoMpound A;5-[2-Ethoxy-5[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-(2-methylpropyl)-6,7-dihydro-1H-pyrazol[4,3-d]pyrimidin-7-one
CAS:1391053-95-4
MF:C23H32N6O4S
MW:488.6
EINECS:
Product Categories:Aromatics;Heterocycles;Impurities;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds
Mol File:1391053-95-4.mol
5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Structure
5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Chemical Properties
storage temp. 2-8°C
solubility Chloroform (Slightly), Methanol (Slightly)
Major Applicationpharmaceutical (small molecule)
InChI1S/C23H32N6O4S/c1-6-33-19-8-7-16(34(31,32)29-11-9-27(4)10-12-29)14-17(19)22-24-20-18(13-15(2)3)26-28(5)21(20)23(30)25-22/h7-8,14-15H,6,9-13H2,1-5H3,(H,24,25,30)
InChIKeyLOAKEZDPQAIDEB-UHFFFAOYSA-N
SMILESC1(C2=CC(S(N3CCN(C)CC3)(=O)=O)=CC=C2OCC)NC(=O)C2N(C)N=C(CC(C)C)C=2N=1
Safety Information
WGK Germany WGK 3
HS Code 2933599550
Storage Class11 - Combustible Solids
MSDS Information
5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Usage And Synthesis
UsesIsobutyl Sildenafil is an impurity of Sildenafil citrate (S435000), as analogue.
5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Preparation Products And Raw materials
Tag:5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one(1391053-95-4) Related Product Information
Sildenafil EP IMpurity D 4-Amino-2-methyl-5-propyl-2H-pyrazole-3-carboxylic acid 4-Amino-1-methyl-3-propyl-5-pyrazolecarboxamide Propoxyphenyl Sildenafil DESMETHYL SILDENAFIL Homo Sildenafil Sildenafil impurity Sildenafil DiMer IMpurity SILDENAFIL N-OXIDE 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,6-dihydro-5-(2-hydroxyphenyl)-1-methyl-3-propyl- 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide Desethyl Sildenafil 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Thiosildenafil 1H-PYRAZOLE-5-CARBOXAMIDE, 4-[[2-ETHOXY-5-[(4-METHYL-1-PIPERAZINYL)SULFONYL]BENZOYL]AMINO]-1-METHYL-3-PROPYL- 2-ETHOXY-5-[(4-METHYLPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID 4-nitro-5-propyl-1H-pyrazole-3-carboxylic acid