ChemicalBook > CAS DataBase List > 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

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
CAS No.
1391053-95-4
Chemical 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
Isobutyl Sildenafil;Sildenafil A;Isobutyl Sildenafi;Sildenafil EP IMpurity A;Isomer of Isobutyl Sildenafil;Sildenafil Related CoMpound A;Sildenafil Citrate Impurity A;Sildenafil impurity A (Y0001579);Sildenafil Citrate EP Impurity A;Sildenafil USP Related Compound A
CBNumber
CB12622733
Molecular Formula
C23H32N6O4S
Formula Weight
488.6
MOL File
1391053-95-4.mol
More
Less

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 Property

storage temp. 
2-8°C
solubility 
Chloroform (Slightly), Methanol (Slightly)
InChIKey
LOAKEZDPQAIDEB-UHFFFAOYSA-N
SMILES
C1(C2=CC(S(N3CCN(C)CC3)(=O)=O)=CC=C2OCC)NC(=O)C2N(C)N=C(CC(C)C)C=2N=1
More
Less

Safety

HS Code 
2933599550
More
Less

Hazard and Precautionary Statements (GHS)

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
Y0001579
Product name
Sildenafil impurity A
Purity
European Pharmacopoeia (EP) Reference Standard
Packaging
5 mg
Price
$156
Updated
2025/07/31
Sigma-Aldrich
Product number
1612685
Product name
Sildenafil Related Compound A
Packaging
10mg
Price
$1300
Updated
2025/07/31
Sigma-Aldrich
Product number
Y0001579
Product name
Sildenafil impurity A
Purity
European Pharmacopoeia (EP) Reference Standard
Packaging
y0001579
Price
$153
Updated
2024/03/01
TRC
Product number
I780650
Product name
IsobutylSildenafil
Packaging
25mg
Price
$760
Updated
2021/12/16
TRC
Product number
I780650
Product name
IsobutylSildenafil
Packaging
5mg
Price
$180
Updated
2021/12/16
More
Less

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,Usage,Production

Uses

Isobutyl 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

Raw materials

Preparation Products

More
Less

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

Shanghai Xiang Xin Industrial Co., Ltd.
Tel
021-50211651 13651607026
Fax
+86-21-50211651
Email
sales@xxgmpharm.com
Country
China
ProdList
490
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94644
Advantage
76
Chemsky (shanghai) International Co.,Ltd
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
15402
Advantage
60
S.Z. PhyStandard Bio-Tech. Co., Ltd.
Tel
0755-4000505016 13380397412
Fax
0755 28094224
Email
3001272453@qq.com
Country
China
ProdList
5158
Advantage
50
ChemStrong Scientific Co.,Ltd
Tel
0755-0755-66853366 13670046396
Fax
0755-28363542
Email
sales@chem-strong.com
Country
China
ProdList
18333
Advantage
56
Shandong Boluoda Biological Technology Co., Ltd.
Tel
0531-68652053 15863796298;
Email
2310993908@qq.com
Country
China
ProdList
2437
Advantage
58
Nanjing XiZe Biotechnology CO., Ltd.
Tel
025-58362220 0086-15250997978
Fax
025-58362220
Email
sale@njxizebio.com
Country
China
ProdList
4855
Advantage
55
Nanjing Vital Chemical Co., Ltd.
Tel
025-87193546 18652950785
Fax
025-87193546
Email
chemweiao@163.com
Country
China
ProdList
9021
Advantage
60
Beijing Solarbio Science & Tecnology Co., Ltd.
Tel
17801761073
Email
3193328036@qq.com
Country
China
ProdList
6338
Advantage
68
Shijiazhuang yaoBo Pharmaceutical Co., Ltd.
Tel
15633056635
Email
2880679888@qq.com
Country
China
ProdList
2373
Advantage
58
Shanghai Witofly Chemical Co. ,Ltd.
Tel
021-50630626 18964684208
Email
sales@witofly.com
Country
China
ProdList
1606
Advantage
55
Shenzhen SUNGENING Bio-Medical Co., Ltd.
Tel
0755-0755-28967200-8062 13631290199
Fax
0755-28967200
Email
wxf@sungening.com
Country
China
ProdList
9624
Advantage
60
Nanjing Maikai Pharmaceutical Technology Co., Ltd.
Tel
17366198809
Fax
-
Email
mcyy-nj@hotmail.com
Country
China
ProdList
238
Advantage
58
GUANGZHOU CHANGTHINKING IMP.&EXP.CO.,LTD
Tel
020-37651955 13682223272
Fax
020-87659730
Email
173901442@qq.com
Country
China
ProdList
694
Advantage
58
Nanjing Pars Biochem CO.,Ltd
Tel
18252001943
Fax
86-025-52257530
Email
info@pariselements.com
Country
China
ProdList
308
Advantage
58
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Tel
+86-400-002-6226 +86-13028896684;
Email
sales@rrkchem.com
Country
China
ProdList
57422
Advantage
58
Shenzhen Botel Biotechnology Co. Ltd.
Tel
13316949107 13316968096
Email
1979313431@qq.com
Country
China
ProdList
9564
Advantage
58
Hefei Molake Biotechnology Co., Ltd.
Tel
0551-66336380 18956014586
Fax
055166336380
Email
983438788@qq.com
Country
China
ProdList
2298
Advantage
58
TOSUN PHARM
Tel
020-61855200 13326451905
Email
260366801@qq.com
Country
China
ProdList
7924
Advantage
58
sgtlifesciences pvt ltd
Tel
+8617013299288
Email
dj@sgtlifesciences.com
Country
China
ProdList
12373
Advantage
58
Guangzhou Dreampharm Biotechnology Co., Ltd.
Tel
020-36607679 19925672674
Fax
QQ 3008233717
Email
3008233746@qq.com
Country
China
ProdList
9883
Advantage
12
Hubei Jusheng Technology Co.,Ltd.
Tel
18871490254
Fax
027-59599243
Email
linda@hubeijusheng.com
Country
CHINA
ProdList
28172
Advantage
58
Shanghai Taijilin Industrial Co., Ltd.
Tel
021-50630626 18964684208
Fax
021-50563898
Email
kate@tajilin.com
Country
China
ProdList
1291
Advantage
58
Jinan blalong chemical co. LTD
Tel
2710913286@.com
Email
1513643261@qq.com
Country
China
ProdList
14246
Advantage
58
Hefei fuya biotechnology co. LTD
Tel
18096409024
Email
sales02@foreversyn.com
Country
China
ProdList
1961
Advantage
58
Shaanxi Dideu Medichem Co. Ltd
Tel
029-029-81024372 17792795018
Fax
029-88380327
Email
1027@dideu.com
Country
China
ProdList
9997
Advantage
58
Wuxi Minglu Medicine technology Co.,Ltd.
Tel
0510-88726693
Fax
0510-88726693
Email
3204601684@qq.com
Country
China
ProdList
2215
Advantage
58
Meng Cheng Technology (Shanghai) Co., LTD
Tel
400-820-6829
Email
sales@mitachieve.com
Country
China
ProdList
8860
Advantage
58
Shandong WorldSun Biological Technology Co., Ltd.
Tel
0531-88723173 18596073690
Email
1047208234@qq.com
Country
China
ProdList
6783
Advantage
58
Nanjing Shizhou Biology Technology Co.,Ltd
Tel
025-85560043 13675144456
Fax
025-85563444
Email
sean.lv@synzest.com
Country
China
ProdList
11438
Advantage
58
Energy Chemical
Tel
021-58432009 400-005-6266
Fax
021-58436166
Email
marketing1@energy-chemical.com
Country
China
ProdList
44894
Advantage
58
Guangzhou Juntang Technology Co., Ltd
Tel
020-36607679 13502246435
Email
sales@dmstandards.com
Country
China
ProdList
10945
Advantage
58
LEWOO PHARMATECH (SHANGHAI) CO.,LTD
Tel
15800805830
Fax
021 67898603
Email
miao@lewoopharma.com.cn
Country
China
ProdList
932
Advantage
58
Jiangsu Wansipu Technology Co., Ltd.
Tel
17826022701
Email
1485609990@qq.com
Country
China
ProdList
999
Advantage
58
TCI (Shanghai) Chemical Trading Co., Ltd.
Tel
021-61109150
Fax
021-61105897
Email
sales@tcisct.com
Country
China
ProdList
29668
Advantage
58
Foshan Treasure Biotechnology Co., Ltd
Tel
0757-85921206 18520245316
Email
2329783215@qq.com
Country
China
ProdList
12661
Advantage
58
Changzhou Xianglong Pharmaceutical Technology Co., LTD
Tel
18661161657
Email
yaoxiangqiu2021@163.com
Country
China
ProdList
9968
Advantage
58
QUALITY CONTROL SOLUTIONS LTD.
Tel
+86-0755-66853366 +86-13670046396
Email
export03@qcsrm.com
Country
China
ProdList
24342
Advantage
58
Molcoo Chemicals Inc.
Tel
18576690171
Email
3001025734@qq.com
Country
China
ProdList
8880
Advantage
58
Huaihua Yuanyanda Biotechnology Co., Ltd
Tel
18711085600
Email
1652923704@qq.com
Country
China
ProdList
4628
Advantage
58
Hubei Weideli Chemical Reagent Co.,Ltd.
Tel
027-59222918; 13385289472
Email
Z13385289472@163.com
Country
China
ProdList
4769
Advantage
58
Beijing Pharmin Tech. Co.;
Tel
13051859142
Email
yzhust@163.com
Country
China
ProdList
117
Advantage
58
Scinova Biotech(Guangzhou) Co., Ltd.
Tel
13268215580
Email
scinova_sales@163.com
Country
China
ProdList
7025
Advantage
58
Cato Research Chemicals Inc.
Tel
020-81960175-877 18933936954
Email
tianwen.zhan@cato-chem.com
Country
China
ProdList
7259
Advantage
58
LGC Science (Shanghai) Ltd.
Tel
17717235263
Email
cindy.yang@lgcgroup.com
Country
China
ProdList
18003
Advantage
58
Shanghai Haohong Scientific Co., Ltd.
Tel
400-8210725 4008210725
Email
malulu@leyan.com
Country
China
ProdList
40000
Advantage
58
LangFangshi Zekang Pharma Tech CO.,Itd.
Tel
0316-2883536 19333636468
Email
93618484@qq.com
Country
China
ProdList
2344
Advantage
58
Shenzhen Excellent Biomedical Technology Co., Ltd.
Tel
0755-26050679 18318671572
Email
2850803126@qq.com
Country
China
ProdList
10001
Advantage
58
Shanghai Zerui Biotechnology Co., Ltd.
Tel
021-54580889 18321124657
Fax
021-54580889
Email
731997554@qq.com
Country
China
ProdList
10608
Advantage
58
JiNan QiYuan Biotechnology Co., Ltd
Tel
18766124282; 18766124282
Email
18766124282@163.COM
Country
China
ProdList
929
Advantage
58
More
Less

View Lastest Price from 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

Moxin Chemicals
Product
Sildenafil Impurity 1391053-95-4
Price
US $0.00-0.00/mg
Min. Order
10mg
Purity
98%+
Supply Ability
100000000
Release date
2024-12-20

1391053-95-4, 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-oneRelated Search:


  • 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
  • Isobutyl Sildenafi
  • 5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-(2-methylpropyl)-4H-pyrazolo[4,3-d]pyrimidin-7-one
  • Sildenafil Impurity 1(Sildenafil EP Impurity A)
  • (5-(2-ETHOXY-5(4-METHYL PIPERAZINE-1-YL SULFONYL)PHENYL)-1-METHYL-3-PROPYL-6 7- DIHYDRO-1H-PYRAZOLO-4 3-D)PYRIMIDIN-7-ON
  • (5-(2-ETHOXY-5(4-METHYL PIPERAZINE-1-YL SULFONYL)PHENYL)-1-METHYL-3-PROPYL-6 7- DIHYDRO-1H-PYRAZOLO-4 3-D)PYRIMIDIN-7-ONE
  • Sildenafil EP Impurity A (Sildenafil USP Related Compound A, Isobutyl Sildenafil)
  • 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-(2-methylpropyl)-
  • 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-(2-methylpropyl)-1,6-dihydro-7H-p
  • Sildenafil impurity A (Y0001579)
  • Sildenafil Impurity AQ: What is Sildenafil Impurity A Q: What is the CAS Number of Sildenafil Impurity A Q: What is the storage condition of Sildenafil Impurity A Q: What are the applications of Sildenafil Impurity A
  • Sildenafil Related Compound A (F0K413)
  • 5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-3-isobutyl-1-methyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • Sildenafil USP Related Compound A
  • Sildenafil Citrate Impurity A
  • Sildenafil Citrate EP Impurity A
  • 5-{2-Ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl}-1-methyl-3-(2-methylpropyl)-1H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one
  • 5-[2-Ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-(2-methylpropyl)-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • Sildenafil citrate USP impurity A
  • 1391053-95-4
  • Aromatics
  • Heterocycles
  • Impurities
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • Sulfur & Selenium Compounds