Name
Sildenafil Impurity 27
Synonyms
4-ethoxy-3-(3-isobutyl-1-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride
Molecular Formula
C₁₈H₂₁ClN₄O₄S
Molecular Weight
424.9
CAS Number (Or Watson Number for Non-CAS Products)
139755-83-227
Use
Impurity of API Sildenafil
Links
This product is developed by our R&D company Caming Pharmaceutical Ltd (
https://www.caming.com/).
Quick Inquiry
Fill out our inquiry form and one of our experts will be in touch with you shortly.
![5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE CAS 139756-21-1](https://www.watson-int.com/wp-content/uploads/2018/11/139756-21-1.jpg)
![1H-Pyrazolo[4,3-d]pyrimidine, 7-ethoxy-5-[2-ethoxy-5-[(4- methyl-1-piperazinyl)sulfonyl] phenyl]-1-m...](https://www.watson-int.com/wp-content/uploads/2019/07/1093065-15-6.jpg){kind=small}
![Structure of Bis[tris(2-Methoxyphenyl)phosphine]palladium(II)chloride CAS 1260367-34-7](https://www.watson-int.com/wp-content/uploads/2026/09/Structure-of-Bistris2-MethoxyphenylphosphinepalladiumIIchloride-CAS-1260367-34-7.jpg "Structure of Bis[tris(2-Methoxyphenyl)phosphine]palladium(II)chloride CAS 1260367-34-7")
