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Sildenafil Carboxylic Acid Impurity
Chemical Name: 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl)benzoic acid
Synonym: Hydroxychloroquine USP related impurity a ; Desethylhydroxychloroquine
| CAT No: | VS-S023012 |
| CAS No: | 147676-78-6 |
| Mol.F. | C18H20N4O4 |
| Mol.Wt.: | 356.4 |
| Status: | Custom Synthesis |
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Sildenafil
CAT No: VS-S023000
CAS No: 139755-83-2
Mol.F.: C22H30N6O4S
Mol.Wt.: 474.6
Status: Custom Synthesis
Sildenafil EP Impurity A
CAT No: VS-S023001
CAS No: 1391053-95-4
Mol.F.: C23H32N6O4S
Mol.Wt.: 488.6
Status: In Stock
Sildenafil EP Impurity B
CAT No: VS-S023002
CAS No: 1094598-75-0
Mol.F.: C22H30N6O5S
Mol.Wt.: 490.6
Status: In Stock
Sildenafil Impurity B
CAT No: VS-S023003
CAS No: 200575-15-1
Mol.F.: C22H32N6O5S
Mol.Wt.: 492.6
Status: Custom Synthesis
Sildenafil EP Impurity C
CAT No: VS-S023004
CAS No: 139755-91-2
Mol.F.: C20H26N6O4S
Mol.Wt.: 446.5
Status: In Stock
Sildenafil Impurity C
CAT No: VS-S023005
CAS No: 139755-95-6
Mol.F.: C21H28N6O4S
Mol.Wt.: 460.6
Status: Custom Synthesis
Sildenafil EP Impurity D
CAT No: VS-S023006
CAS No: 1357931-55-5
Mol.F.: C17H20N4O5S
Mol.Wt.: 392.4
Status: In Stock
Sildenafil EP Impurity E
CAT No: VS-S023007
CAS No: 288-32-4
Mol.F.: C3H4N2
Mol.Wt.: 68.1
Status: Limited Stock
Sildenafil EP Impurity F
CAT No: VS-S023008
CAS No: 139755-82-1
Mol.F.: C21H28N6O4S
Mol.Wt.: 460.6
Status: In Stock
Sildenafil EP Impurity G
CAT No: VS-S023009
CAS No: 1346602-67-2
Mol.F.: C38H46N10O8S2
Mol.Wt.: 835
Status: In Stock
2-Ethoxybenzoyl Chloride Impurity
CAT No: VS-S023010
CAS No: 42926-52-3
Mol.F.: C9H9ClO2
Mol.Wt.: 184.6
Status: Custom Synthesis
Sildenafil Amino Amide Impurity
CAT No: VS-S023011
CAS No: 139756-02-8
Mol.F.: C8H14N4O
Mol.Wt.: 182.2
Status: Custom Synthesis
Sildenafil Carboxylic Acid Impurity
CAT No: VS-S023012
CAS No: 147676-78-6
Mol.F.: C18H20N4O4
Mol.Wt.: 356.4
Status: Custom Synthesis
Sildenafil Chloroacetyl Impurity
CAT No: VS-S023013
CAS No: 1058653-74-9
Mol.F.: C19H21ClN4O3
Mol.Wt.: 388.9
Status: Custom Synthesis
Chlorosulfone 2-Methyl Isomer
CAT No: VS-S023014
CAS No: 501120-42-9
Mol.F.: C17H19ClN4O4S
Mol.Wt.: 410.9
Status: Custom Synthesis
Sildenafil Chlorosulfone Impurity
CAT No: VS-S023015
CAS No: 139756-22-2
Mol.F.: C17H19ClN4O4S
Mol.Wt.: 410.9
Status: Custom Synthesis
Chlorosulfone O-Desethyl Impurit
CAT No: VS-S023016
CAS No: 139756-27-7
Mol.F.: C15H15ClN4O4S
Mol.Wt.: 382.8
Status: Custom Synthesis
Des(methylpiperazinyl) Chlorosulfone Impurity
CAT No: VS-S023017
CAS No: 139756-31-3
Mol.F.: C16H17ClN4O4S
Mol.Wt.: 396.9
Status: Custom Synthesis
Sildenafil Descarbon Impurity
CAT No: VS-S023018
CAS No: 1393816-99-3
Mol.F.: C21H30N6O4S
Mol.Wt.: 462.6
Status: Custom Synthesis
Sildenafil Di-Amide Impurity
CAT No: VS-S023019
CAS No: 139756-03-9
Mol.F.: C17H22N4O3
Mol.Wt.: 330.4
Status: Custom Synthesis
Isobutylpyrazolopyrimidine Impurity
CAT No: VS-S023020
CAS No: 1346600-82-5
Mol.F.: C9H12N4
Mol.Wt.: 176.2
Status: Custom Synthesis
Sildenafil Lactam Impurity
CAT No: VS-S023021
CAS No: 139756-21-1
Mol.F.: C17H20N4O2
Mol.Wt.: 312.4
Status: In Stock
Sildenafil N-Desmethyl Thione Impurity
CAT No: VS-S023022
CAS No: 479073-86-4
Mol.F.: C21H28N6O3S2
Mol.Wt.: 476.6
Status: Custom Synthesis
Iso Sildenafil
CAT No: VS-S023023
CAS No: 253178-46-0
Mol.F.: C22H30N6O4S
Mol.Wt.: 474.6
Status: Custom Synthesis
Sildenafil Acid Impurity
CAT No: VS-S023024
CAS No: 139756-00-6
Mol.F.: C8H11N3O4
Mol.Wt.: 213.2
Status: In Stock
Sildenafil Nitroamide
CAT No: VS-S023025
CAS No: 139756-01-7
Mol.F.: C8H12N4O3
Mol.Wt.: 212.2
Status: In Stock
2-ethoxybenzoic acid
CAT No: VS-S023026
CAS No: 134-11-2
Mol.F.: C9H10O3
Mol.Wt.: 166.2
Status: Custom Synthesis
Sildenafil Methyl Sulfonate Ester Impurity
CAT No: VS-S023027
CAS No: 2512206-40-3
Mol.F.: C18H22N4O5S
Mol.Wt.: 406.5
Status: Limited Stock
Amino Sildenafil
CAT No: VS-S023028
CAS No: 319491-68-4
Mol.F.: C18H23N5O4S
Mol.Wt.: 405.5
Status: Custom Synthesis
Sildenafil Citrate
CAT No: VS-S023029
CAS No: 171599-83-0
Mol.F.: C22H30N6O4S : C6H8O7
Mol.Wt.: 474.6 : 192.1
Status: Custom Synthesis
N-Desmethyl Sildenafil-N-β-D-Glucuronide
CAT No: VS-S023030
CAS No: N/A
Mol.F.: C27H35N6O10S : Na
Mol.Wt.: 635.7 : 23.0
Status: Custom Synthesis
Sildenafil Impurity 1
CAT No: VS-S023031
CAS No: 501120-38-3
Mol.F.: C17H22N4O3
Mol.Wt.: 330.4
Status: Custom Synthesis
Sildenafil Impurity 2
CAT No: VS-S023032
CAS No: 1004455-71-3
Mol.F.: C9H13N3O4
Mol.Wt.: 227.2
Status: Custom Synthesis
Sildenafil Impurity 3
CAT No: VS-S023033
CAS No: 1467610-65-6
Mol.F.: C18H22N4O2
Mol.Wt.: 326.4
Status: Custom Synthesis
Sildenafil Impurity 4
CAT No: VS-S023034
CAS No: 911715-34-9
Mol.F.: C9H14N4O3
Mol.Wt.: 226.2
Status: Custom Synthesis
Sildenafil Impurity 5
CAT No: VS-S023035
CAS No: 247583-78-4
Mol.F.: C8H14N4O
Mol.Wt.: 182.2
Status: Custom Synthesis
Sildenafil Impurity 6
CAT No: VS-S023036
CAS No: 268204-00-8
Mol.F.: C9H16N4O
Mol.Wt.: 196.3
Status: Custom Synthesis
Sildenafil Impurity 7
CAT No: VS-S023037
CAS No: 247583-72-8
Mol.F.: C8H12N4O3
Mol.Wt.: 212.2
Status: In Stock
Sildenafil Impurity 8
CAT No: VS-S023038
CAS No: 139755-98-9
Mol.F.: C23H32N6O4S
Mol.Wt.: 488.6
Status: Custom Synthesis
Sildenafil Impurity 9
CAT No: VS-S023039
CAS No: N/A
Mol.F.: C22H30N6O5S
Mol.Wt.: 490.6
Status: Custom Synthesis
Homo Sildenafil
CAT No: VS-S023040
CAS No: 642928-07-2
Mol.F.: C23H32N6O4S
Mol.Wt.: 488.61
Status: Custom Synthesis
Sildenafil D8
CAT No: VS-S023041
CAS No: 951385-68-5
Mol.F.: C22H22D8N6O4S
Mol.Wt.: 482.6
Status: Custom Synthesis
Sildenafil Impurity 10
CAT No: VS-S023042
CAS No: 360068-47-9
Mol.F.: C8H10ClN3O3
Mol.Wt.: 231.64
Status: Custom Synthesis
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