API Impurities
2-ETHOXYBENZOIC ACID
Chemical Name: 2-Ethoxybenzoic acid
CAS No:
134-11-2
Molecular Formula: C9H10O3
Molecular Weight: 166.2
CAT No:
ALL-SILD-62
Keywords: SMILES string -CCOC1=C(C(O)=O)C=CC=C1
Inventory Status:DELIVERY 3-4 WEEKS
DEMETHYLPIPERAZINYL DESETHYL SILDENAFIL SULFONYL CHLORIDE
Chemical Name: 4-Hydroxy-3-(1-methyl-7-oxo-3-propyl-6,7...
CAS No:
139756-27-7
Molecular Formula: C15H15ClN4O4S
Molecular Weight: 382.8
CAT No:
ALL-SILD-38
Keywords: SMILES string - O=S(C1=CC=C(O)C(C2=NC3=C...
Inventory Status:DELIVERY 3-4 WEEKS
DESCARBON SILDENAFIL
Chemical Name: 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-...
CAS No:
466684-88-8
Molecular Formula: C20H28N6O4S
Molecular Weight: 448.5
CAT No:
ALL-SILD-39
Keywords: SMILES string - CCCC(C(NC(C(C=C1[S](NCCN...
Inventory Status:DELIVERY 3-4 WEEKS
DESMETHYL CARBODENAFIL IMPURITY
Chemical Name: 5-(2-Ethoxy-5-(4-methylpiperazine-1-carb...
CAS No:
147676-79-7
Molecular Formula: C23H30N6O3
Molecular Weight: 438.5
CAT No:
ALL-SILD-40
Keywords: SMILES string - O=C1N=C(C2=C(OCC)C=CC(C(...
Inventory Status:DELIVERY 3-4 WEEKS
DESMETHYL SILDENAFIL D3
Chemical Name: 5-(2-Hydroxy-5-((4-(methyl-d3)piperazin-...
CAS No:
1346603-75-5
Molecular Formula: C20H23D3N6O4S
Molecular Weight: 449.5
CAT No:
ALL-SILD-52
Keywords: SMILES string - CCCC1=NN(C)C2=C1NC(C3=CC...
Inventory Status:DELIVERY 3-4 WEEKS
DESMETHYL THIOSILDENAFIL
Chemical Name: 5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phe...
CAS No:
479073-86-4
Molecular Formula: C21H28N6O3S2
Molecular Weight: 476.62
CAT No:
ALL-SILD-21
Keywords: SMILES string - S=C1C(N(C)N=C2CCC)=C2N=C...
Inventory Status:DELIVERY 3-4 WEEKS
DIMETHYL SILDENAFIL
Chemical Name: 5-(5-((3,5-Dimethylpiperazin-1-yl)sulfon...
CAS No:
1416130-63-6
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAT No:
ALL-SILD-41
Keywords: SMILES string - CCCC(C(NC(C(C=C1[S](=O)(...
Inventory Status:DELIVERY 3-4 WEEKS
HOMO SILDENAFIL D5
Chemical Name: 5-(2-Ethoxy-5-((4-(ethyl-d5)piperazin-1-...
CAS No:
1216711-61-3
Molecular Formula: C23H27D5N6O4S
Molecular Weight: 493.6
CAT No:
ALL-SILD-53
Keywords: SMILES string - CCCC1=NN(C)C2=C1NC(C(C=C...
Inventory Status:DELIVERY 3-4 WEEKS
HYDROXYHOMO SILDENAFIL
Chemical Name: 5-(2-Ethoxy-5-((4-(2-hydroxyethyl)pipera...
CAS No:
139755-85-4
Molecular Formula: C23H32N6O5S
Molecular Weight: 504.6
CAT No:
ALL-SILD-42
Keywords: SMILES string - CCOC(C=C1)=C(C(NC(C(CCC)...
Inventory Status:DELIVERY 3-4 WEEKS
ISO SILDENAFIL
Chemical Name: 5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)s...
CAS No:
253178-46-0
Molecular Formula: C22H30N6O4S
Molecular Weight: 474.6
CAT No:
ALL-SILD-59
Keywords: SMILES string - CCCC1=C(N=C(C(C=C([S](=O...
Inventory Status:DELIVERY 3-4 WEEKS
ISOBUTYLPYRAZOLOPYRIMIDINE IMPURITY
Chemical Name: 3-(2-Methylpropyl)-1H-pyrazolo[4,3-d]pyr...
CAS No:
1346600-82-5
Molecular Formula: C9H12N4
Molecular Weight: 176.22
CAT No:
ALL-SILD-17
Keywords: SMILES string - CC(C)CC1=NNC2=CN=CN=C21
Inventory Status:DELIVERY 3-4 WEEKS
N-DESMETHYL SILDENAFIL N-GLUCURONIDE
Chemical Name: (2S,3S,4S,5R,6R)-6-(4-((4-ethoxy-3-(1-me...
CAS No:
N.A.
Molecular Formula: C27H36N6O10S
Molecular Weight: 636.7
CAT No:
ALL-SILD-43
Keywords: SMILES string -O=C([C@@H]1[C@@H](O)[C@H]...
Inventory Status:DELIVERY 3-4 WEEKS
N-DESMETHYL SILDENAFIL-N-BETA-D-GLUCURONIDE
Chemical Name: Sodium (2S,3S,5R,6R)-6-(4-((4-ethoxy-3-(...
CAS No:
N.A.
Molecular Formula: C27H35N6O10S : Na
Molecular Weight: 635.7 : 23.0
CAT No:
ALL-SILD-44
Keywords: SMILES string - CCOC1=C(C2=NC(C(CCC)=NN3...
Inventory Status:DELIVERY 3-4 WEEKS
N-NITROSO N-DESMETHYL SILDENAFIL
Chemical Name: 5-(2-Ethoxy-5-((4-nitrosopiperazin-1-yl)...
CAS No:
N.A.
Molecular Formula: C21H27N7O5S
Molecular Weight: 489.6
CAT No:
ALL-SILD-55
Keywords: SMILES string - O=S(N1CCN(N=O)CC1)(C2=CC...
Inventory Status:DELIVERY 3-4 WEEKS
N-NITROSO PYRAZOLE N-DEMETHYL SILDENAFIL
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
N.A.
Molecular Formula: C21H27N7O5S
Molecular Weight: 489.6
CAT No:
ALL-SILD-57
Keywords: SMILES string - CN1CCN(S(C2=CC=C(OCC)C(C...
Inventory Status:DELIVERY 3-4 WEEKS
N-NITROSO SILDENAFIL
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
N.A.
Molecular Formula: C22H29N7O5S
Molecular Weight: 503.6
CAT No:
ALL-SILD-58
Keywords: SMILES string -O=C1N(N=O)C(C2=C(OCC)C=CC...
Inventory Status:DELIVERY 3-4 WEEKS
NITROSO PRODENAFIL
Chemical Name: N-(2-((5-(5-((3,5-dimethylpiperazin-1-yl...
CAS No:
N.A.
Molecular Formula: C27H35N9O5S2
Molecular Weight: 629.8
CAT No:
ALL-SILD-56
Keywords: NITROSO PRODENAFIL
Inventory Status:DELIVERY 3-4 WEEKS
PROPOXYPHENYL-THIOSILDENAFIL-D8
Chemical Name: 1-Methyl-5-(5-((4-methylpiperazin-1-yl-2...
CAS No:
N.A.
Molecular Formula: C23H24D8N6O3S2
Molecular Weight: 512.7
CAT No:
ALL-SILD-54
Keywords: SMILES string - S=C1C(N(C)N=C2CCC)=C2NC(...
Inventory Status:DELIVERY 3-4 WEEKS
PYRAZOLE N-DEMETHYL SILDENAFIL
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
139755-95-6
Molecular Formula: C21H28N6O4S
Molecular Weight: 460.6
CAT No:
ALL-SILD-36
Keywords: SMILES string - O=C1C(NN=C2CCC)=C2N=C(C3...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL
Chemical Name: 5-[2-Ethoxy-5-(4-methylpiperazine-1-sulf...
CAS No:
139755-83-2
Molecular Formula: C22H30N6O4S
Molecular Weight: 474.6
CAT No:
ALL-SILD-60
Keywords: SMILES string - O=C1NC(C2=C(OCC)C=CC(S(N...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL 2-ETHOXYBENZOYL CHLORIDE IMPURITY
Chemical Name: 2-Ethoxybenzoyl chloride
CAS No:
42926-52-3
Molecular Formula: C9H9ClO2
Molecular Weight: 184.62
CAT No:
ALL-SILD-1
Keywords: SMILES string -O=C(Cl)C1=CC=CC=C1OCC
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL ACID IMPURITY
Chemical Name: 1-Methyl-4-nitro-3-propyl-1H-pyrazole-5-...
CAS No:
139756-00-6
Molecular Formula: C8H11N3O4
Molecular Weight: 213.2
CAT No:
ALL-SILD-61
Keywords: SMILES string - CN1N=C(CCC)C([N+]([O-])=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL ALDEHYDE IMPURITY
Chemical Name: 2-Ethoxy-5-(4-methyl-piperazin-1-yl-sulp...
CAS No:
N.A.
Molecular Formula: C14H20N2O4S
Molecular Weight: 312.38
CAT No:
ALL-SILD-2
Keywords: Sildenafil Aldehyde Impurity, 2-Ethoxy-5...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL AMINO AMIDE IMPURITY
Chemical Name: 4-Amino-1-methyl-3-propylpyrazole-5-carb...
CAS No:
139756-02-8
Molecular Formula: C8H14N4O
Molecular Weight: 182.22
CAT No:
ALL-SILD-3
Keywords: Sildenafil Amino Amide Impurity, 4-Amino...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CARBOXYLIC ACID IMPURITY
Chemical Name: 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-...
CAS No:
147676-78-6
Molecular Formula: C18H20N4O4
Molecular Weight: 356.38
CAT No:
ALL-SILD-4
Keywords: SMILES string - O=C(O)C1=CC=C(OCC)C(C2=N...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CHLOROACETYL IMPURITY
Chemical Name: 5-[5-(2-Chloroacetyl)-2-ethoxyphenyl]-1,...
CAS No:
1058653-74-9
Molecular Formula: C19H21ClN4O3
Molecular Weight: 388.85
CAT No:
ALL-SILD-5
Keywords: SMILES string - O=C1C(N(C)N=C2CCC)=C2N=C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CHLOROSULFONE 2-METHYL ISOMER
Chemical Name: 4-Ethoxy-3-(2-methyl-7-oxo-3-propyl-6,7-...
CAS No:
501120-42-9
Molecular Formula: C17H19ClN4O4S
Molecular Weight: 410.88
CAT No:
ALL-SILD-6
Keywords: SMILES string - O=S(C1=CC=C(OCC)C(C2=NC3...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CHLOROSULFONE IMPURITY
Chemical Name: 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-me...
CAS No:
139756-22-2
Molecular Formula: C17H19ClN4O4S
Molecular Weight: 410.88
CAT No:
ALL-SILD-7
Keywords: SMILES string - O=C1C(N(C)N=C2CCC)=C2N=C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CHLOROSULFONE O-DESETHYL IMPURITY
Chemical Name: 4-Hydroxy-3-(1-methyl-7-oxo-3-propyl-6,7...
CAS No:
139756-27-7
Molecular Formula: C15H15ClN4O4S
Molecular Weight: 382.82
CAT No:
ALL-SILD-8
Keywords: SMILES string - O=S(C1=CC=C(O)C(C2=NC3=C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CITRATE
Chemical Name: 5-[2-Ethoxy-5-[(4-methylpiperazin-1-yl)s...
CAS No:
171599-83-0
Molecular Formula: C22H30N6O4S : C6H8O7
Molecular Weight: 474.6 : 192.1
CAT No:
ALL-SILD-23
Keywords: SMILES string - O=C1NC(C2=C(OCC)C=CC(S(N...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL CITRATE 13CD3
Chemical Name: 5-(2-Ethoxy-5-((4-(methyl-13C-d3)piperaz...
CAS No:
N.A.
Molecular Formula: C2113CH27D3N6O4S : C6H8O7
Molecular Weight: 478.6 : 192.1
CAT No:
ALL-SILD-24
Keywords: SMILES string -OC(CC(O)(C(O)=O)CC(O)=O)=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL D5
Chemical Name: 5-(2-(Ethoxy-d5)-5-((4-methylpiperazin-1...
CAS No:
951385-70-9
Molecular Formula: C22H25D5N6O4S
Molecular Weight: 479.6
CAT No:
ALL-SILD-48
Keywords: SMILES string - O=C1C(N(C)N=C2CCC)=C2NC(...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL D8
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl-2...
CAS No:
951385-68-5
Molecular Formula: C22H22D8N6O4S
Molecular Weight: 482.6
CAT No:
ALL-SILD-51
Keywords: SMILES string - CCOC1=C(C(NC2=C3N(C)N=C2...
Inventory Status:DELIVERY 3-4 WEEKS
 Chlorosulfone Impurity.png)
SILDENAFIL DES(METHYLPIPERAZINYL) CHLOROSULFONE IMPURITY
Chemical Name: 4-Ethoxy-3-(7-oxo-3-propyl-6,7-dihydro-1...
CAS No:
139756-31-3
Molecular Formula: C16H17ClN4O4S
Molecular Weight: 396.85
CAT No:
ALL-SILD-9
Keywords: Sildenafil Impurity
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL DESCARBON IMPURITY
Chemical Name: 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1...
CAS No:
1393816-99-3
Molecular Formula: C21H30N6O4S
Molecular Weight: 462.57
CAT No:
ALL-SILD-10
Keywords: Sildenafil Descarbon Impurity, 3-(6,7-Di...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL DI-AMIDE IMPURITY
Chemical Name: 4-(2-Ethoxybenzamido)-1-methyl-3-n-propy...
CAS No:
139756-03-9
Molecular Formula: C17H22N4O3
Molecular Weight: 330.38
CAT No:
ALL-SILD-11
Keywords: SMILES string - O=C(C1=C(NC(C2=CC=CC=C2O...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL DIMER D8
Chemical Name: 5,5'-((piperazine-1,4-disulfonyl-2,...
CAS No:
N.A.
Molecular Formula: C38H38D8N10O8S2
Molecular Weight: 843.0
CAT No:
ALL-SILD-49
Keywords: SMILES string -CCCC1=NN(C)C2=C1N=C(C3=CC...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL DISULFONAMIDE DIMER IMPURITY
Chemical Name: 5-{2 -Ethoxy-5-[(4-{[4-ethoxy-3-(1-methy...
CAS No:
1346602-67-2
Molecular Formula: C38H46N10O8S2
Molecular Weight: 834.96
CAT No:
ALL-SILD-12
Keywords: SMILES string - CCCC1=NN(C)C2=C1N=C(C3=C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL EP IMPURITY A
Chemical Name: 5-[2-Ethoxy-5-[(4-methylpiperazin-1-yl)s...
CAS No:
1391053-95-4
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAT No:
ALL-S03589
Keywords: Sildenafil EP Impurity A
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL EP IMPURITY B
Chemical Name: 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piper...
CAS No:
1094598-75-0
Molecular Formula: C22H30N6O5S
Molecular Weight: 490.58
CAT No:
ALL-SIL-2347
Keywords: SMILES string -O=C1C(N(C)N=C2CCC)=C2N=C(...
Inventory Status:IN STOCK-633-75
SILDENAFIL EP IMPURITY C
Chemical Name: 5-[2-Hydroxy-5-(4-methylpiperazinylsulph...
CAS No:
139755-91-2
Molecular Formula: C20H26N6O4S
Molecular Weight: 446.52
CAT No:
ALL-SIL-2348
Keywords: SMILES string -O=C1C(N(C)N=C2CCC)=C2N=C(...
Inventory Status:IN STOCK-634-75
SILDENAFIL EP IMPURITY D
Chemical Name: 4-Ethoxy-3-(1-methyl-3-propyl-7-oxo-6, 7...
CAS No:
1357931-55-5
Molecular Formula: C17H20N4O5S
Molecular Weight: 392.43
CAT No:
ALL-S03088
Keywords: SMILES string -O=S(C1=CC=C(OCC)C(C2=NC3=...
Inventory Status:IN STOCK-635-75
SILDENAFIL ETHYL SULFONATE IMPURITY
Chemical Name: Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propy...
CAS No:
1971915-89-5
Molecular Formula: C19H24N4O5S
Molecular Weight: 420.5
CAT No:
ALL-SILD-45
Keywords: SMILES string - O=C1NC(C2=C(OCC)C=CC(S(=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 1
Chemical Name: 4-(2-Ethoxybenzamido)-1-methyl-5-propyl-...
CAS No:
501120-38-3
Molecular Formula: C17H22N4O3
Molecular Weight: 330.4
CAT No:
ALL-SILD-25
Keywords: SMILES string - O=C(C(C=CC=C1)=C1OCC)NC(...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 10
Chemical Name: 2-(2-Ethoxyphenyl)-5-methyl-7-propyl-3,5...
CAS No:
N.A.
Molecular Formula: C18H21N3O2
Molecular Weight: 311.4
CAT No:
ALL-SILD-32
Keywords: SMILES string -O=C1C2=C(C(CCC)=NC2C)N=C(...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 11
Chemical Name: 5-(5-Chloro-2-ethoxyphenyl)-1-methyl-3-p...
CAS No:
1829588-57-9
Molecular Formula: C17H19ClN4O2
Molecular Weight: 346.8
CAT No:
ALL-SILD-46
Keywords: SMILES string - CCCC(C(NC(C(C=C1Cl)=C(C=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 2
Chemical Name: 3-Isobutyl-1-methyl-4-nitro-1H-pyrazole-...
CAS No:
1004455-71-3
Molecular Formula: C9H13N3O4
Molecular Weight: 227.2
CAT No:
ALL-SILD-26
Keywords: SMILES string - O=[N](C(C(CC(C)C)=NN1C)=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 3
Chemical Name: 5-(2-Ethoxyphenyl)-3-isobutyl-1-methyl-1...
CAS No:
1467610-65-6
Molecular Formula: C18H22N4O2
Molecular Weight: 326.4
CAT No:
ALL-SILD-27
Keywords: SMILES string - CC(C)CC1=NN(C)C2=C1NC(C(...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 4
Chemical Name: 3-Isobutyl-1-methyl-4-nitro-1H-pyrazole-...
CAS No:
911715-34-9
Molecular Formula: C9H14N4O3
Molecular Weight: 226.2
CAT No:
ALL-SILD-28
Keywords: SMILES string - O=[N](C(C(CC(C)C)=NN1C)...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 5
Chemical Name: 4-Amino-1-methyl-5-propyl-1H-pyrazole-3-...
CAS No:
247583-78-4
Molecular Formula: C8H14N4O
Molecular Weight: 182.2
CAT No:
ALL-SILD-29
Keywords: SMILES string - CCCC(N1C)=C(C(C(N)=O)=N1...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 6
Chemical Name: 4-Amino-3-isobutyl-1-methyl-1H-pyrazole-...
CAS No:
268204-00-8
Molecular Formula: C9H16N4O
Molecular Weight: 196.3
CAT No:
ALL-SILD-30
Keywords: SMILES string - NC(C(N1C)=C(C(CC(C)C)=N1...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 7
Chemical Name: 1-Methyl-4-nitro-5-propyl-1H-pyrazole-3-...
CAS No:
247583-72-8
Molecular Formula: C8H12N4O3
Molecular Weight: 212.2
CAT No:
ALL-SILD-31
Keywords: SMILES string - O=[N](C(C(C(N)=O)=NN1C)=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 8
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
139755-98-9
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAT No:
ALL-SILD-37
Keywords: SMILES string - CCCC1=NN(CC)C2=C1N=C(C(C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY 9
Chemical Name: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
N.A.
Molecular Formula: C22H30N6O5S
Molecular Weight: 490.6
CAT No:
ALL-SILD-47
Keywords: SMILES string - CN1CCN(S(=O)(C2=CC=C(OCC...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY B
Chemical Name: 4-(2-Ethoxy-5-((4-methylpiperazin-1-yl)s...
CAS No:
200575-15-1
Molecular Formula: C22H32N6O5S
Molecular Weight: 492.6
CAT No:
ALL-SILD-33
Keywords: SMILES string -O=C(C1=C(NC(C2=CC(S(=O)(N...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL IMPURITY F
Chemical Name: 5-[2-Ethoxy-5-(piperazin-1-yl) sulfonylp...
CAS No:
139755-82-1
Molecular Formula: C21H28N6O4S
Molecular Weight: 460.55
CAT No:
ALL-SIL-2533
Keywords: SMILES string - O=C1N=C(C2=CC(S(=O)(N3CC...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL LACTAM IMPURITY
Chemical Name: 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6...
CAS No:
139756-21-1
Molecular Formula: C17H20N4O2
Molecular Weight: 312.37
CAT No:
ALL-SILD-18
Keywords: SMILES string - O=C1C(N(C)N=C2CCC)=C2N=C...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL METHYL SULFONATE ESTER IMPURITY
Chemical Name: Methyl 4-ethoxy-3-(1-methyl-7-oxo-3-prop...
CAS No:
2512206-40-3
Molecular Formula: C18H22N4O5S
Molecular Weight: 406.5
CAT No:
ALL-SILD-34
Keywords: SMILES string - O=S(C1=CC=C(OCC)C(C2=NC3...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL MONOSULFONE DIMER IMPURITY
Chemical Name: 5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7...
CAS No:
1346603-48-2
Molecular Formula: C34H38N8O6S
Molecular Weight: 686.78
CAT No:
ALL-SILD-19
Keywords: Sildenafil Monosulfone Dimer Impurity, 5...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL N-ETHYL ANALOG
Chemical Name: 5-[2-Ethoxy-5-(4-ethylpiperazin-1-yl)sul...
CAS No:
642928-07-2
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAT No:
ALL-SILD-22
Keywords: Sildenafil N-Ethyl Analog, 5-[2-Ethoxy-5...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL NITROAMIDE
Chemical Name: 1-Methyl-4-nitro-3-n-propyl pyrazole-5-c...
CAS No:
139756-01-7
Molecular Formula: C8H12N4O3
Molecular Weight: 212.2
CAT No:
ALL-SILD-35
Keywords: SMILES string - CN1N=C(CCC)C([N+]([O-])=...
Inventory Status:DELIVERY 3-4 WEEKS
SILDENAFIL-D3
Chemical Name: 5-(2-Ethoxy-5-((4-(methyl-d3)piperazin-1...
CAS No:
1126745-90-1
Molecular Formula: C22H27D3N6O4S
Molecular Weight: 477.6
CAT No:
ALL-SILD-50
Keywords: SMILES string - CCOC1=C(C(NC2=C3N(C)N=C2...
Inventory Status:DELIVERY 3-4 WEEKS