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Sildenafil impurity

Sildenafil impurity structure

CAS No.: 1971915-89-5

Chemical Name:: Sildenafil impurity

Synonyms: Sildenafil-002;SildefilImpurity33;Sildenafil Impurity J;Ethyl 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-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;3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid;Benzenesulfonic acid, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-, ethyl ester;Sildenafil impurity 9/ 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid

CBNumber:: CB54665426

Molecular Formula:: C19H24N4O5S

Molecular Weight:: 420.48

MDL Number:

MOL File:: 1971915-89-5.mol

Last updated:2023-04-23 13:52:06

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Sildenafil impurity Properties

Melting point	149 - 152°C
Boiling point	624.0±65.0 °C(Predicted)
Density	1.37±0.1 g/cm3(Predicted)
storage temp.	Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility	Chloroform (Slightly), Methanol (Slightly)
form	Solid
pka	0.36±0.20(Predicted)
color	White to Off-White

Sildenafil impurity price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	D414610	3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethylesterBenzenesulfonicacid	1971915-89-5	250mg	$965	2021-12-16	Buy

Product number	Packaging	Price	Buy
D414610	250mg	$965	Buy

Sildenafil impurity Chemical Properties,Uses,Production

Uses

3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid is used in the preparation of sildenafil impurity for pharmaceutical quality control by esterification.

Sildenafil impurity Preparation Products And Raw materials

Raw materials

Preparation Products

Sildenafil impurity Suppliers

Global( 34)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14336	58
Career Henan Chemica Co	+86-0371-86658258 15093356674;	laboratory@coreychem.com	China	30255	58
China National Standard Pharmaceutical Corporation Limited	+8615391658522	overseasales@yongstandards.com	China	11927	58
ChemStrong Scientific Co.,Ltd	0755-66853366 13670046396	sales@chem-strong.com	China	17982	56
Shanghai Kewel Chemical Co., Ltd.	021-64609169 18901607656	greensnown@163.com	China	9911	50
Nanjing XiZe Biotechnology CO., Ltd.	025-58362220 15250997978	1511893459@qq.com	China	7715	55
Lianyungang TengFa Biological Technology Co. Ltd	0518-85475186 18705131893	wang666xt@163.com	China	351	55
Shanghai Xiang Xin Industrial Co., Ltd.	021-50211651 13651607026	sales@xxgmpharm.com	China	487	58
Shijiazhuang yaoBo Pharmaceutical Co., Ltd.	15633056635	2880679888@qq.com	China	2684	58
Chengdu Saint - Kay Biotechnology Co., Ltd.	028-85157043 15882256948	676046971@qq.com	China	4392	58

Supplier	Advantage
Standardpharm Co. Ltd.	58
Career Henan Chemica Co	58
China National Standard Pharmaceutical Corporation Limited	58
ChemStrong Scientific Co.,Ltd	56
Shanghai Kewel Chemical Co., Ltd.	50
Nanjing XiZe Biotechnology CO., Ltd.	55
Lianyungang TengFa Biological Technology Co. Ltd	55
Shanghai Xiang Xin Industrial Co., Ltd.	58
Shijiazhuang yaoBo Pharmaceutical Co., Ltd.	58
Chengdu Saint - Kay Biotechnology Co., Ltd.	58

1971915-89-5(Sildenafil impurity)Related Search:

4-Amino-2-methyl-5-propyl-2H-pyrazole-3-carboxylic acid 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(5-chloro-2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl- Sildenafil EP IMpurity D Propoxyphenyl Sildenafil DESMETHYL SILDENAFIL

Homo Sildenafil 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 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 Desethyl Sildenafil 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 1H-PYRAZOLE-5-CARBOXAMIDE, 4-[[2-ETHOXY-5-[(4-METHYL-1-PIPERAZINYL)SULFONYL]BENZOYL]AMINO]-1-METHYL-3-PROPYL-

1-Piperazinesulfonicacid,4-methyl-(9CI) 2-ETHOXY-5-[(4-METHYLPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID 5-CHLOROSULFONYL-2-ETHOXYBENZOIC ACID

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Sildenafil-002 Sildenafil Impurity J Sildenafil impurity 9/ 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid SildefilImpurity33 Ethyl 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate Benzenesulfonic acid, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-, ethyl ester 1971915-89-5