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Heterocyclen

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Structure Chemical Name CAS MF
4,4',4'',4'''-(2,2',4,4',6,6'-hexamethyl-[1,1'-biphenyl]-3,3',5,5'-tetrayl)tetrapyridine 4,4',4'',4'''-(2,2',4,4',6,6'-hexamethyl-[1,1'-biphenyl]-3,3',5,5'-tetrayl)tetrapyridine 809274-33-7 C38H34N4
8-fluoro-2-methylimidazo[1,2-a]pyridine-6-carbonit 8-fluoro-2-methylimidazo[1,2-a]pyridine-6-carbonit
5-CHLORO-7-METHOXYTHIENO[3,2-B]PYRIDINE 5-CHLORO-7-METHOXYTHIENO[3,2-B]PYRIDINE 90690-91-8 C8H6ClNOS
2-Methoxy-4-(tributylstannyl)pyridine 2-Methoxy-4-(tributylstannyl)pyridine 1204580-72-2 C18H33NOSn
4-methoxycarbonyl-6,6'-dimethyl-2,2'-bipyridine 4-methoxycarbonyl-6,6'-dimethyl-2,2'-bipyridine 562086-30-0 C14H14N2O2
1H-Pyrrolo[2,3-b]pyridine, 5-(4-chlorophenyl)- 1H-Pyrrolo[2,3-b]pyridine, 5-(4-chlorophenyl)- 918516-27-5 C13H9ClN2
3-Bromo-2-chloro-4-(trifluoromethyl)pyridine 3-Bromo-2-chloro-4-(trifluoromethyl)pyridine 1211588-39-4 C6H2BrClF3N
3-Fluoro-2-Bromo-4-(trifluoromethyl)pyridine 3-Fluoro-2-Bromo-4-(trifluoromethyl)pyridine 1227577-05-0 C6H2BrF4N
5,7-DIBROMO-1H-PYRAZOLO[4,3-B]PYRIDINE 5,7-DIBROMO-1H-PYRAZOLO[4,3-B]PYRIDINE 1956379-02-4 C6H3Br2N3
2,6-bis[1,1-bis(pyridin-2-yl)ethyl]pyridine 2,6-bis[1,1-bis(pyridin-2-yl)ethyl]pyridine 105631-67-2 C29H25N5
4-CHLORO-2-METHOXY-PYRIDINE 4-CHLORO-2-METHOXY-PYRIDINE 72141-44-7 C6H6ClNO
4,5,6,7-Tetrahydro-5-(triphenylmethyl)thieno[3,2-c]pyridine 4,5,6,7-Tetrahydro-5-(triphenylmethyl)thieno[3,2-c]pyridine 109904-25-8 C26H23NS
2-(2,4-difluorophenyl)-5-(trifluoroMethyl)pyridine 2-(2,4-difluorophenyl)-5-(trifluoroMethyl)pyridine 387827-64-7 C12H6F5N
5-chloro-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)pyridine 5-chloro-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)pyridine 1426337-02-1 C17H19BClNO3
6-bromo-3,3-dimethyl-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine 6-bromo-3,3-dimethyl-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine 1259512-11-2 C9H11BrN2
2-amino-5-(trifluoromethyl)pyridine-3-carbonitrile 2-amino-5-(trifluoromethyl)pyridine-3-carbonitrile 1211514-97-4 C7H4F3N3
3,6-dibromo-2-(trifluoromethyl)pyridine 3,6-dibromo-2-(trifluoromethyl)pyridine 1211588-54-3 C6H2Br2F3N
5-Chloro-7-iodo-1H-pyrazolo[3,4-c]pyridine 5-Chloro-7-iodo-1H-pyrazolo[3,4-c]pyridine 1951371-15-5 C6H3ClIN3
7-Bromothieno[3,2-c]pyridine 7-Bromothieno[3,2-c]pyridine 1535297-40-5 C7H4BrNS
Gentioflavine Gentioflavine 18058-50-9 C10H11NO3
7-Methoxy-4-nitro-1H-pyrazolo[3,4-c]pyridine 7-Methoxy-4-nitro-1H-pyrazolo[3,4-c]pyridine 1416374-56-5 C7H6N4O3
2-chloro-3-(MethoxyMethoxy)pyridine 2-chloro-3-(MethoxyMethoxy)pyridine 862667-72-9 C7H8ClNO2
2-amino-5-nitro-4,6-dimethylpyridine 2-amino-5-nitro-4,6-dimethylpyridine 22934-22-1 C7H9N3O2
1-phenyl-1H-imidazo[4,5-c]pyridine 1-phenyl-1H-imidazo[4,5-c]pyridine 61532-35-2 C12H9N3
4-Chlorooxazolo[4,5-c]pyridine 4-Chlorooxazolo[4,5-c]pyridine 1159829-15-8 C6H3ClN2O
3-(3,5-di-pyridin-4-yl-(1,2,4)triazol-1-ylmethyl)-pyridine 3-(3,5-di-pyridin-4-yl-(1,2,4)triazol-1-ylmethyl)-pyridine 55391-41-8 C18H14N6
5',3'']Terpyridine 5',3'']Terpyridine 106047-31-8 C15H11N3
2-Pyridinecarboximidic acid, 2-methylhydrazide 2-Pyridinecarboximidic acid, 2-methylhydrazide 28819-35-4 C7H10N4
[2,2':6',2''-terpyridine]-6,6''-dicarboxylic acid [2,2':6',2''-terpyridine]-6,6''-dicarboxylic acid 149982-11-6 C17H11N3O4
6-broMo-3-iodoH-iMidazo[1,2-a]pyridine 6-broMo-3-iodoH-iMidazo[1,2-a]pyridine 474706-74-6 C7H4BrIN2
2-(4-fluorophenyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(4-fluorophenyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)pyridine 1402172-82-0 C17H19BFNO2
3-Hydroxy-2-bromo-6-trifluoromethylpyridine 3-Hydroxy-2-bromo-6-trifluoromethylpyridine 1211526-50-9 C6H3BrF3NO
5-(5-phenyl-4-((pyridin-2-ylmethyl)amino)quinazolin-2-yl)pyridine-3-sulfonamide 5-(5-phenyl-4-((pyridin-2-ylmethyl)amino)quinazolin-2-yl)pyridine-3-sulfonamide 1272353-82-8 C25H20N6O2S
3-Bromo-6-(trifluoromethyl)pyridine-2-carbaldehyde 3-Bromo-6-(trifluoromethyl)pyridine-2-carbaldehyde 1227573-28-5 C7H3BrF3NO
Manufacturer of phenacetin API Manufacturer of phenacetin API
(2,5-dioxopyrrolidin-1-yl) (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-5-(phenylmethoxycarbonylamino)pentanoate (2,5-dioxopyrrolidin-1-yl) (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-5-(phenylmethoxycarbonylamino)pentanoate 57225-26-0 C22H29N3O8
(2R,4S)-1-((S)-2-amino-3,3-dimethylbutanoyl)-4-hydroxy-N-((S)-1-(4-(4-methylthiazol-5-yl)phenyl)ethyl)pyrrolidine-2-carboxamide hydrochloride (2R,4S)-1-((S)-2-amino-3,3-dimethylbutanoyl)-4-hydroxy-N-((S)-1-(4-(4-methylthiazol-5-yl)phenyl)ethyl)pyrrolidine-2-carboxamide hydrochloride
1,6-Diazabicyclo[3.2.1]octane-2-carboxylic acid, 7-oxo-6-(sulfooxy)-, 2-[2-[(3S)-3-pyrrolidinylcarbonyl]hydrazide], (1R,2S,5R)- 1,6-Diazabicyclo[3.2.1]octane-2-carboxylic acid, 7-oxo-6-(sulfooxy)-, 2-[2-[(3S)-3-pyrrolidinylcarbonyl]hydrazide], (1R,2S,5R)- 1452460-79-5 C12H19N5O7S
3-Pyrrolidin-1-ylandrosta-3,5-dien-17-on 3-Pyrrolidin-1-ylandrosta-3,5-dien-17-on 905-30-6 C23H33NO
(S)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride (S)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride 2828444-29-5 C7H11ClIN3
2-Pyridinecarboxamide, 5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]amino]-1,2,5,6-tetrahydro-4-methyl-, (2S,5R)- 2-Pyridinecarboxamide, 5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]amino]-1,2,5,6-tetrahydro-4-methyl-, (2S,5R)- 2209874-05-3 C13H27N3O2Si
1-(3S)-3-Pyrrolidinyl-piperidine 1-(3S)-3-Pyrrolidinyl-piperidine 917560-78-2 C9H18N2
3-Hydroxymethylpyrrolidine 3-Hydroxymethylpyrrolidine 5082-74-6 C5H11NO
cis-1-(tert-butoxycarbonyl)-4-ethylpyrrolidine-3-carboxylic acid cis-1-(tert-butoxycarbonyl)-4-ethylpyrrolidine-3-carboxylic acid 1310731-87-3 C12H21NO4
2-((S)-1-acryloyl-4-(7-(8-methylnaphthalen-1-yl)-2-(((S)-1-methylpyrrolidin-2-yl)methoxy)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)piperazin-2-yl)acetonitrile 2-((S)-1-acryloyl-4-(7-(8-methylnaphthalen-1-yl)-2-(((S)-1-methylpyrrolidin-2-yl)methoxy)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-yl)piperazin-2-yl)acetonitrile 2206736-04-9 C33H39N7O2
10-((1-Methyl-3-pyrrolidinyl)-methyl)-10H-phenothiazin 10-((1-Methyl-3-pyrrolidinyl)-methyl)-10H-phenothiazin 1982-37-2 C18H20N2S
1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl-2,2,3,3-d4)-2-(octylamino)-3-(pyrrolidin-1-yl)propan-1-ol 1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl-2,2,3,3-d4)-2-(octylamino)-3-(pyrrolidin-1-yl)propan-1-ol
6-amino-1-((2S,4R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxypyrrolidin-1-yl)hexan-1-one 6-amino-1-((2S,4R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxypyrrolidin-1-yl)hexan-1-one
(2R,4R)-4-fluoro-2-methylpyrrolidine (2R,4R)-4-fluoro-2-methylpyrrolidine
(2S,4S)-4-fluoro-2-methylpyrrolidine hydrochloride (2S,4S)-4-fluoro-2-methylpyrrolidine hydrochloride 2828444-34-2 C5H11ClFN
2-(2,6-dioxopiperidin-3-yl)-5-(3-(hydroxymethyl)pyrrolidin-1-yl)isoindoline-1,3-dione 2-(2,6-dioxopiperidin-3-yl)-5-(3-(hydroxymethyl)pyrrolidin-1-yl)isoindoline-1,3-dione
BOC-GLU(OSU)-OTBU BOC-GLU(OSU)-OTBU 81659-82-7 C18H28N2O8
(S)-3-METHOXY-PYRROLIDINE HYDROCHLORIDE (S)-3-METHOXY-PYRROLIDINE HYDROCHLORIDE 685828-16-4 C5H12ClNO
1-((S)-2-HydroxyMethyl-pyrrolidin-1-yl)-ethanone 1-((S)-2-HydroxyMethyl-pyrrolidin-1-yl)-ethanone 66158-68-7 C7H13NO2
4-isocyanato-1-methyl-1H-pyrazole 4-isocyanato-1-methyl-1H-pyrazole 1174064-57-3 C5H5N3O
5-(2,5-dimethyl-1H-pyrrol-1-yl)-1-methyl-1H-pyrazole 5-(2,5-dimethyl-1H-pyrrol-1-yl)-1-methyl-1H-pyrazole 34605-70-4 C10H13N3
4,4'-Bi-1H-pyrazole 4,4'-Bi-1H-pyrazole 25240-33-9 C6H6N4
4-(Difluoromethylene)-4,5-dihydro-3H-pyrazole 4-(Difluoromethylene)-4,5-dihydro-3H-pyrazole 88766-66-9 C4H4F2N2
1-ALLYL-3 5-DIMETHYLPYRAZOLE 96 1-ALLYL-3 5-DIMETHYLPYRAZOLE 96 13369-74-9 C8H12N2
1-(2,2,2-trifluoroethyl)pyrazole-3-carbaldehyde 1-(2,2,2-trifluoroethyl)pyrazole-3-carbaldehyde 1310379-34-0 C6H5F3N2O
N,N'-BIS-BOC-1-GUANYLPYRAZOLE N,N'-BIS-BOC-1-GUANYLPYRAZOLE 152120-54-2 C14H22N4O4
1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-pyrazole 1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-pyrazole 1607838-14-1 C16H21BN2O2
4-BROMO-3,5-DIMETHYL-1-(TETRAHYDRO-2H-PYRAN-4-YL)-1H-PYRAZOLE 4-BROMO-3,5-DIMETHYL-1-(TETRAHYDRO-2H-PYRAN-4-YL)-1H-PYRAZOLE 1339665-24-5 C10H15BrN2O
N,N-Dimethyl-1H-pyrazole-3-carboxamide N,N-Dimethyl-1H-pyrazole-3-carboxamide 853058-59-0 C6H9N3O
3-(3-Bromophenyl)-1-methyl-1H-pyrazole 3-(3-Bromophenyl)-1-methyl-1H-pyrazole 425379-68-6 C10H9BrN2
5-(forMylaMino)-1H-pyrazole-4-carboxaMide 5-(forMylaMino)-1H-pyrazole-4-carboxaMide 22407-20-1 C5H6N4O2
1-(DiMethylsulfaMoyl)pyrazole 1-(DiMethylsulfaMoyl)pyrazole 133228-21-4 C5H9N3O2S
1-(azetidin-3-yl)-4-iodo-1H-pyrazole 1-(azetidin-3-yl)-4-iodo-1H-pyrazole 1343072-59-2 C6H8IN3
Terevalefim Terevalefim 1070881-42-3 C9H8N2S
1-(azetidin-3-yl)-4-iodo-1H-pyrazole hydrochloride 1-(azetidin-3-yl)-4-iodo-1H-pyrazole hydrochloride
3-(TRIFLUOROMETHYL)-5-P-TOLYL-1H-PYRAZOLE 3-(TRIFLUOROMETHYL)-5-P-TOLYL-1H-PYRAZOLE 26974-15-2 C11H9F3N2
3-bromo-1-(oxan-2-yl)-1h-pyrazole 3-bromo-1-(oxan-2-yl)-1h-pyrazole 1044270-96-3 C8H11BrN2O
4-AMino-N-[(1-ethyl-5-oxo-2-pyrrolidinyl)Methyl]-5-(ethylsulfonyl)-2-MethoxybenzaMide 4-AMino-N-[(1-ethyl-5-oxo-2-pyrrolidinyl)Methyl]-5-(ethylsulfonyl)-2-MethoxybenzaMide 1391052-47-3 C17H25N3O5S
(3R,5S)-5-Methylpyrrolidin-3-ol (3R,5S)-5-Methylpyrrolidin-3-ol 1108234-23-6 C5H11NO
(S)-1-(2-aminoacetyl)-4,4-difluoropyrrolidine-2-carbonitrile (S)-1-(2-aminoacetyl)-4,4-difluoropyrrolidine-2-carbonitrile 1448440-39-8 C7H9F2N3O
Phosphonium, [(3'R)-1'-[(1,1-dimethylethoxy)carbonyl]-2-oxo[1,3'-bipyrrolidin]-3-yl]triphenyl-, bromide Phosphonium, [(3'R)-1'-[(1,1-dimethylethoxy)carbonyl]-2-oxo[1,3'-bipyrrolidin]-3-yl]triphenyl-, bromide 376653-42-8 C31H36BrN2O3P
(3S,5R)-5-methylpyrrolidin-3-ol hydrochloride (3S,5R)-5-methylpyrrolidin-3-ol hydrochloride 1107658-78-5 C5H12ClNO
3-(difluoromethyl)pyrrolidine hydrochloride 3-(difluoromethyl)pyrrolidine hydrochloride 1376176-56-5 C5H10ClF2N
(2S,4S)-4-Fluoro-2-(Fluoromethyl)Pyrrolidine Hydrochloride(WX601106) (2S,4S)-4-Fluoro-2-(Fluoromethyl)Pyrrolidine Hydrochloride(WX601106) 1951424-95-5 C5H10ClF2N
(2α,3α,5α,16β,17β)-2,3-Epoxy-16-(1-pyrrolidinyl)androstan-17-ol (2α,3α,5α,16β,17β)-2,3-Epoxy-16-(1-pyrrolidinyl)androstan-17-ol 119302-19-1 C23H37NO2
(2S,4R)-4-fluoro-2-methylpyrrolidine hydrochloride (2S,4R)-4-fluoro-2-methylpyrrolidine hydrochloride 2828444-35-3 C5H11ClFN
Sulfuric acid, mono[(1R,2S,5R)-7-oxo-2-[[[(3S)-3-pyrrolidinyloxy]amino]carbonyl]-1,6-diazabicyclo[3.2.1]oct-6-yl] ester Sulfuric acid, mono[(1R,2S,5R)-7-oxo-2-[[[(3S)-3-pyrrolidinyloxy]amino]carbonyl]-1,6-diazabicyclo[3.2.1]oct-6-yl] ester 1452458-72-8 C11H18N4O7S
1-Benzyl-4-pyrrolidin-1-ylpiperidin, dihydrochlorid 1-Benzyl-4-pyrrolidin-1-ylpiperidin, dihydrochlorid 4983-38-4 C16H26Cl2N2
(2S,5R)-7-oxo-2-((((R)-pyrrolidin-3-yl)oxy)carbamoyl)-1,6-diazabicyclo[3.2.1]octan-6-yl hydrogen sulfate (2S,5R)-7-oxo-2-((((R)-pyrrolidin-3-yl)oxy)carbamoyl)-1,6-diazabicyclo[3.2.1]octan-6-yl hydrogen sulfate 1452458-70-6 C11H18N4O7S
(S)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole (S)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole
N-(2-AMINO-4-TRIFLUOROMETHYLPHENYL)PYRROLIDINE N-(2-AMINO-4-TRIFLUOROMETHYLPHENYL)PYRROLIDINE 133184-80-2 C11H13F3N2
(S)-2-AMINOMETHYL-1-N-CBZ-PYRROLIDINE (S)-2-AMINOMETHYL-1-N-CBZ-PYRROLIDINE 141774-68-7 C13H18N2O2
3-Pyrrolidinemethanamine,N-cyclopropyl-4-fluoro-,(3R,4S)-(9CI) 3-Pyrrolidinemethanamine,N-cyclopropyl-4-fluoro-,(3R,4S)-(9CI) 604798-54-1 C8H15FN2
1-(3-HydroxyMethyl-pyrrolidin-1-yl)-ethanone 1-(3-HydroxyMethyl-pyrrolidin-1-yl)-ethanone 191347-96-3 C7H13NO2
2-AMino-3-(pyrrolidin-3-yl)propanoic acid 2-AMino-3-(pyrrolidin-3-yl)propanoic acid 1313016-75-9 C7H14N2O2
2,5-Pyrrolidinedione, 1-[(4-chlorobenzoyl)oxy]- 2,5-Pyrrolidinedione, 1-[(4-chlorobenzoyl)oxy]- 68388-09-0 C11H8ClNO4
Benzyl [(1R,2R)-1-Hydroxy-1-phenyl-3-(1-pyrrolidinyl)-2-propanyl]carbamate Benzyl [(1R,2R)-1-Hydroxy-1-phenyl-3-(1-pyrrolidinyl)-2-propanyl]carbamate 193545-67-4 C21H26N2O3
(3S,4R)-4-(3-fluorophenyl)-1-(2-methoxyethyl)pyrrolidin-3-aminedihydrochloride (3S,4R)-4-(3-fluorophenyl)-1-(2-methoxyethyl)pyrrolidin-3-aminedihydrochloride 1414567-41-1 C13H20ClFN2O
(R)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride (R)-4-iodo-1-(pyrrolidin-3-yl)-1H-pyrazole hydrochloride 2828444-26-2 C7H11ClIN3
(R)-1-acetyl-2-PyrrolidineMethanol (R)-1-acetyl-2-PyrrolidineMethanol 123958-87-2 C7H13NO2
3-AMino-1-Boc-4,4-difluoropyrrolidine 3-AMino-1-Boc-4,4-difluoropyrrolidine 1408074-83-8 C9H16F2N2O2
Alkyne NHS ester (hexynoic acid NHS ester) Alkyne NHS ester (hexynoic acid NHS ester) 906564-59-8 C10H11NO4
2,5-dioxopyrrolidin-1-yl 5-{2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl}pentanoate 2,5-dioxopyrrolidin-1-yl 5-{2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl}pentanoate 85718-04-3 C14H19N3O5S
(2S)-3-(decyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid (2S)-3-(decyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid 1013997-51-7 C22H23NO4
1-ethyl-4-(2-morpholinoethyl)-3,3-diphenylpyrrolidin-2-one monohydrochloride 1-ethyl-4-(2-morpholinoethyl)-3,3-diphenylpyrrolidin-2-one monohydrochloride 113-07-5 C24H31ClN2O2
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