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Heterocyclic compound

Heterocyclic compounds are a class of organic compounds with cyclic structure. The ring-constituting atoms in the molecule, in addition to carbon, also include one or more nitrogen, sulfur, oxygen and other atoms. Those containing one ring are called single-heterocyclic compounds, such as furan, thiazole, and pyridine. Those containing two or more rings are called fused heterocyclic compounds such as quinoline and purine. The most common and most stable are five- or six-membered heterocyclic ring. Simple heterocyclic ring is capable of merging with benzene or another heterocyclic ring to form a bicyclic, tricyclic or more complex ring system. Some kinds of heterocyclic rings have features of aromatic compounds, such as being easy to participate into substitution reaction, difficult to have addition reaction and being stable to oxidant. Heterocyclic compounds are widely found in nature, such as nucleic acids, most kinds of vitamins, chlorophyll, heme, most kinds of alkaloids, pigments and so on. A fraction of the heterocyclic compounds have aromatic characteristics, such as plants coumarone, jasmonate and animals civetone. There are many synthetic pesticides that belong to such compounds such as herbicides atrazine, amitrole, CMPT, insecticide fluorine propargite, quinoline parathion, thioquinox and so on. Simple heterocyclic compound is an important raw material of organic chemical industry.

The cyclic compounds with atoms constituting the ring system, in addition to carbon atom, also containing O, S, and N heteroatom are collectively referred to as heterocyclic compounds. According to this definition, the cyclic dicarboxylic anhydride, the cyclic imide, lactones, lactides, cyclic anhydrides, lactams, and cyclic ethers, strictly speaking, also belong to heterocyclic compounds. However, due to the nature of these compounds are similar with aliphatic compound, and can easily undergo either the cyclization of the open-chain compounds or ring open reaction to be transformed into chain compounds, thus being generally attributed to the aliphatic chemistry for discussion. Therefore, heterocyclic compounds generally refer specifically to those heterocyclic compounds with relatively stable ring system but different levels of aromatic properties, namely aromatic heterocyclic compound.

The organic heterocyclic compounds belong to a large class in the three large categories of organic compounds, open chain, carbocyclic and heterocyclic organic compounds. It contains various kinds and has a large number accounting for about one-third of all known organic compounds and is also widespread in the biosphere, having close relation with the biological growth, development, reproduction, and genetic variation and so on. Common heterocyclic compounds include furan, thiophene, pyrrole, pyridine, quinoline, carbazole and so on.

These kinds of heterocyclic compounds are widely used in organic synthesis or as pharmaceuticals, pesticides, solvents and so on. They are colorless liquids with special smell or crystallization and have specific gravity being less than or close to water. They are toxic and can be soluble in some organic solvents and slightly soluble in water. In case of fire, heat, oxidants and strong acids, it can cause fire or explosion with simultaneous deposition of toxic sulfur dioxide or nitrogen oxide gas. Furan, when being exposed to the air, is capable of forming peroxides with causing an explosion during distillation. In the management of dangerous goods, according to the risk grades of fire, explosion, toxicity risk, they were classified as flammable liquids, flammable solids and organic toxic chemicals; when used in the reservoir, the first two comply danger of the A and B class while the latter one is based on class C fire danger for conducting fire management. In case of fire, we can use foam, dry powder, water mist, 1211 and carbon dioxide for fire extinguishing agents.

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Structure Chemical Name CAS MF
6-methylpyrazin-3,5-d2-2-amine 6-methylpyrazin-3,5-d2-2-amine 3124708-40-0
6-Fluoroindole-2-carboxylic acid 6-Fluoroindole-2-carboxylic acid 3093-97-8 C9H6FNO2
Ethyl 2-(2-aminothiazole-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetate Ethyl 2-(2-aminothiazole-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetate 86299-46-9 C15H23N3O5S
3-(trifluoromethyl)cyclohexane-1-carboxylic acid 3-(trifluoromethyl)cyclohexane-1-carboxylic acid 104907-44-0 C8H11F3O2
3-Amino-5-mercapto-1,2,4-triazole 3-Amino-5-mercapto-1,2,4-triazole 16691-43-3 C2H4N4S
(S)-4-Methyl-2,5-oxazolidonedione (S)-4-Methyl-2,5-oxazolidonedione 2224-52-4 C4H5NO3
2,7-DIAZA-SPIRO[4.4]NONANE-2-CARBOXYLIC ACID TERT-BUTYL ESTER 2,7-DIAZA-SPIRO[4.4]NONANE-2-CARBOXYLIC ACID TERT-BUTYL ESTER 236406-49-8 C12H22N2O2
2-CHLORO-3-PHENYLPYRIDINE 2-CHLORO-3-PHENYLPYRIDINE 31557-57-0 C11H8ClN
2-BROMO-5-ETHOXYPYRAZINE 2-BROMO-5-ETHOXYPYRAZINE 1060803-83-9 C6H7BrN2O
2-mercapto-3,5-dimethylthieno[2,3-d]pyrimidin-4(3H)-one 2-mercapto-3,5-dimethylthieno[2,3-d]pyrimidin-4(3H)-one 51486-14-7 C8H8N2OS2
6-CYCLOHEXYLPYRIDINE-2-BORONIC ACID PINACOL ESTER 6-CYCLOHEXYLPYRIDINE-2-BORONIC ACID PINACOL ESTER 1259370-17-6 C17H26BNO2
6-ETHOXYPYRIDINE-2-BORONIC ACID PINACOL ESTER 6-ETHOXYPYRIDINE-2-BORONIC ACID PINACOL ESTER 1310385-03-5 C13H20BNO3
(1S,2S)-N,N'-Dihydroxy-N,N'-bis(diphenylacetyl)cyclohexane-1,2-diamine (1S,2S)-N,N'-Dihydroxy-N,N'-bis(diphenylacetyl)cyclohexane-1,2-diamine 1217464-22-6 C34H34N2O4
METHYL 1H-PYRROLO[2,3-C]PYRIDINE-5-CARBOXYLATE METHYL 1H-PYRROLO[2,3-C]PYRIDINE-5-CARBOXYLATE 147071-00-9 C9H8N2O2
3-(5-methyl-1H-tetrazol-1-yl)aniline 3-(5-methyl-1H-tetrazol-1-yl)aniline 500701-24-6 C8H9N5
6-(PROPAN-2-YLOXY)PYRIDIN-3-AMINE 6-(PROPAN-2-YLOXY)PYRIDIN-3-AMINE 52025-36-2 C8H12N2O
2,3,4,5-Tetrahydro-3-(trifluoroacetyl)-1,5-methano-1H-3-benzazepine 2,3,4,5-Tetrahydro-3-(trifluoroacetyl)-1,5-methano-1H-3-benzazepine 230615-51-7 C13H12F3NO
4,7,8-TRICHLOROQUINOLINE 4,7,8-TRICHLOROQUINOLINE 17999-80-3 C9H4Cl3N
BBT-176 BBT-176 2254805-44-0 C28H37ClN8O3S
2,2'-BIPYRIMIDINE 2,2'-BIPYRIMIDINE 34671-83-5 C8H6N4
3-(4-Pyridinyl)-1H-1,2,4-triazole 3-(4-Pyridinyl)-1H-1,2,4-triazole 14803-99-7 C7H6N4
5-BROMO-2-(1H-IMIDAZOL-1-YL)PYRIMIDINE 5-BROMO-2-(1H-IMIDAZOL-1-YL)PYRIMIDINE 883230-68-0 C7H5BrN4
(+)-Rubiginone B2 (+)-Rubiginone B2 130548-10-6 C20H16O4
6-Methyl-3-piperidinol 6-Methyl-3-piperidinol 54751-93-8 C6H13NO
α-Methyl-9-oxo-9H-xanthene-2-acetic acid α-Methyl-9-oxo-9H-xanthene-2-acetic acid 30087-33-3 C16H12O4
5-PHENYLTHIAZOL-2-OL 5-PHENYLTHIAZOL-2-OL 83631-55-4 C9H7NOS
2-DIETHYLAMINO-4-BROMOTHIAZOLE 2-DIETHYLAMINO-4-BROMOTHIAZOLE 446286-59-5 C7H11BrN2S
2-(IMIDAZOL-1-YL)-5-BROMOTHIAZOLE 2-(IMIDAZOL-1-YL)-5-BROMOTHIAZOLE 446287-07-6 C6H4BrN3S
4-AMINO-6-PIPERIDINOPYRIMIDINE 4-AMINO-6-PIPERIDINOPYRIMIDINE 69206-89-9 C9H14N4
4,6-DICHLORO-2-PROPYL-PYRIMIDINE 4,6-DICHLORO-2-PROPYL-PYRIMIDINE 1197-28-0 C7H8Cl2N2
2-BROMO-4-(2-FURANYL)THIAZOLE 2-BROMO-4-(2-FURANYL)THIAZOLE 917566-86-0 C7H4BrNOS
4,6-DICHLORO-2-(4-FLUOROPHENYL)PYRIMIDINE 4,6-DICHLORO-2-(4-FLUOROPHENYL)PYRIMIDINE 83217-30-5 C10H5Cl2FN2
3-HYDROXY-CYCLOBUTANECARBOXYLIC ACID BENZYL ESTER 3-HYDROXY-CYCLOBUTANECARBOXYLIC ACID BENZYL ESTER 480449-99-8 C12H14O3
Tert-butyl 4-(6-nitropyridin-3-yl)piperazine-1-carboxylate Tert-butyl 4-(6-nitropyridin-3-yl)piperazine-1-carboxylate 571189-16-7 C14H20N4O4
2-(3-(TERT-BUTOXYCARBONYL)-3-AZASPIRO[5.5]UNDECAN-9-YL)ACETIC ACID 2-(3-(TERT-BUTOXYCARBONYL)-3-AZASPIRO[5.5]UNDECAN-9-YL)ACETIC ACID 952480-32-9 C17H29NO4
4-Chloro-6-(4-methyl-1-piperazinyl)pyrimidine 4-Chloro-6-(4-methyl-1-piperazinyl)pyrimidine 27174-60-3 C9H13ClN4
1-(5-Bromo-2-pyridinyl)-4-methylpiperidine 1-(5-Bromo-2-pyridinyl)-4-methylpiperidine 633283-66-6 C11H15BrN2
Thiazole, 4-[3-(trifluoromethyl)phenyl]- Thiazole, 4-[3-(trifluoromethyl)phenyl]- 939805-29-5 C10H6F3NS
(2-CHLORO-8-METHYLQUINOLIN-3-YL)METHANOL (2-CHLORO-8-METHYLQUINOLIN-3-YL)METHANOL 333408-31-4 C11H10ClNO
2-fluoro-6-(thiophen-2-yl)pyridine 2-fluoro-6-(thiophen-2-yl)pyridine 842136-47-4 C9H6FNS
5-cyclopropylpyridin-2-amine 5-cyclopropylpyridin-2-amine 893738-68-6 C8H10N2
(7a,17b)-7-(9-Bromononyl)-estra-1,3,5(10)-triene-3,17-diol 17-acetate (7a,17b)-7-(9-Bromononyl)-estra-1,3,5(10)-triene-3,17-diol 17-acetate 875573-66-3 C29H43BrO3
4-Methyl-2-thiophenamine 4-Methyl-2-thiophenamine 14770-82-2 C5H7NS
3-Bromo-5-isopropylpyridine 3-Bromo-5-isopropylpyridine 1209459-74-4 C8H10BrN
4-Amino-5-bromo-2-ethoxypyridine 4-Amino-5-bromo-2-ethoxypyridine 1187732-68-8 C7H9BrN2O
3-(o-tolyl)pyridin-4-ol 3-(o-tolyl)pyridin-4-ol 3124621-13-9 C12H11NO
4-bromo-N-cyclopropylpyridin-3-amine 4-bromo-N-cyclopropylpyridin-3-amine 3124621-22-0 C8H9BrN2
4-methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,6-naphthyridine 4-methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,6-naphthyridine 3124585-67-4 C15H19BN2O2
1-(2-Pyridyl)cyclopropylamine Dihydrochloride 1-(2-Pyridyl)cyclopropylamine Dihydrochloride 1215107-39-3 C8H11ClN2
2,7-diazaspiro[4.4]nonan-1-one 2,7-diazaspiro[4.4]nonan-1-one 1203796-97-7 C7H12N2O
3-bromo-5-isopropoxypyridine 3-bromo-5-isopropoxypyridine 212332-40-6 C8H10BrNO
3-Furanacetic acid, .alpha.-aminotetrahydro-, [S-(R*,R*)]- (9CI) 3-Furanacetic acid, .alpha.-aminotetrahydro-, [S-(R*,R*)]- (9CI) 150331-99-0 C6H11NO3
1-(4-bromo-3-fluorophenyl)pyrrolidin-2-one 1-(4-bromo-3-fluorophenyl)pyrrolidin-2-one 1461715-23-0 C10H9BrFNO
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)piperazine-1-carboxylate tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)piperazine-1-carboxylate 1346808-98-7 C20H32BN3O4
N-desmethylxanomeline N-desmethylxanomeline 131986-96-4 C13H21N3OS
6-O-BETA-D-GLUCOPYRANOSYL-D-GLUCOPYRANOSE 6-O-BETA-D-GLUCOPYRANOSYL-D-GLUCOPYRANOSE 5996-00-9 C12H22O11
5,6-Dichloropyrazine-2,3-d2 5,6-Dichloropyrazine-2,3-d2 2256742-42-2 C4Cl2D2N2
Pyrazine, 2-(3-oxetanyloxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- Pyrazine, 2-(3-oxetanyloxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 2138879-93-1 C13H19BN2O4
4-(iso-Propyl)-2-(piperidino)thiazole-5-boronic acid pinacol ester 4-(iso-Propyl)-2-(piperidino)thiazole-5-boronic acid pinacol ester 2223011-48-9 C17H29BN2O2S
2-(tetrahydrofuran-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine 2-(tetrahydrofuran-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine 2222996-44-1 C14H21BN2O3
2-(1,4-dioxan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2-(1,4-dioxan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2222996-94-1 C13H21BN2O4
tert-butyl 2-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazin-2-yl)morpholine-4-carboxylate tert-butyl 2-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazin-2-yl)morpholine-4-carboxylate 2222996-95-2 C19H30BN3O5
1-(4-cyclopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-4-methylpiperazine 1-(4-cyclopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-4-methylpiperazine 2223046-88-4 C20H31BN2O2
2-(2-cyclopropyl-4-(tetrahydro-2H-pyran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(2-cyclopropyl-4-(tetrahydro-2H-pyran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2223006-41-3 C20H29BO3
2-(4-cyclopropyl-3-(tetrahydro-2H-pyran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(4-cyclopropyl-3-(tetrahydro-2H-pyran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2222997-00-2 C20H29BO3
6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyrazine 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyrazine 2223041-65-2 C14H17BN4O2
1-(propyl-d7)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 1-(propyl-d7)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 2241877-38-1 C12H14BD7N2O2
2-(iso-Butyl)imidazole-4-boronic acid pinacol ester 2-(iso-Butyl)imidazole-4-boronic acid pinacol ester 2223045-00-7 C13H23BN2O2
1-(furan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 1-(furan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2223049-79-2 C13H17BN2O3
1-(propyl-d7)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 1-(propyl-d7)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2241869-83-8 C12H14BD7N2O2
4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(p-tolyl)-1H-imidazole 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(p-tolyl)-1H-imidazole 2223055-68-1 C16H21BN2O2
2-(4-Bromoimidazol-1-yl)thiazole-5-boronic acid pinacol ester 2-(4-Bromoimidazol-1-yl)thiazole-5-boronic acid pinacol ester 1402237-85-7 C12H15BBrN3O2S
1-(Thiazol-5-yl)pyrazole-3-boronic acid pinacol ester 1-(Thiazol-5-yl)pyrazole-3-boronic acid pinacol ester 2223050-40-4 C12H16BN3O2S
1-(2-Cyanophenyl)-1H-pyrazole-3-boronic acid pinacol ester 1-(2-Cyanophenyl)-1H-pyrazole-3-boronic acid pinacol ester 2223048-73-3 C16H18BN3O2
3-Methyl-1-(2-bromophenyl)-1H-pyrazole-4-boronic acid pinacol ester 3-Methyl-1-(2-bromophenyl)-1H-pyrazole-4-boronic acid pinacol ester 2223028-84-8 C16H20BBrN2O2
methyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)benzoate methyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)benzoate 2223037-97-4 C17H21BN2O4
tert-butyl 3-(2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)piperidine-1-carboxylate tert-butyl 3-(2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)piperidine-1-carboxylate 2223006-62-8 C20H34BN3O4
1-(furan-3-yl)-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 1-(furan-3-yl)-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2223038-55-7 C14H19BN2O3
1-(4-fluorophenyl)-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 1-(4-fluorophenyl)-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2223038-59-1 C16H20BFN2O2
2-methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2-methyl-1-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2223030-03-1 C16H21BN2O2
1-(tert-Butyldimethylsilyl)imidazole-4-boronic acid pinacol ester 1-(tert-Butyldimethylsilyl)imidazole-4-boronic acid pinacol ester 2223030-75-7 C15H29BN2O2Si
2-methyl-1-nonylimidazole-4-boronic acid pinacol ester 2-methyl-1-nonylimidazole-4-boronic acid pinacol ester 2223053-76-5 C19H35BN2O2
2-(N-Boc-piperidin-4-yl)thiazole-4-boronic acid pinacol ester 2-(N-Boc-piperidin-4-yl)thiazole-4-boronic acid pinacol ester 2223044-04-8
tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9 tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9 2241870-59-5 C16H21BD9NO4
3,5-Dibromo-2-(2-methylimidazol-1-yl)pyridine 3,5-Dibromo-2-(2-methylimidazol-1-yl)pyridine 1289269-51-7 C9H7Br2N3
6-Chloro-6'-hydroxy-2,2'-bipyrazine 6-Chloro-6'-hydroxy-2,2'-bipyrazine 1185314-81-1 C8H5ClN4O
6-Chloro-5'-cyano-2,2'-bipyrazine 6-Chloro-5'-cyano-2,2'-bipyrazine 1185319-21-4 C9H4ClN5
2-Bromo-4-(4-tetrahydropyranyl)thiophene 2-Bromo-4-(4-tetrahydropyranyl)thiophene 1353853-60-7 C9H11BrOS
2-(5-aminopyrimidin-2-yl)propan-2-ol 2-(5-aminopyrimidin-2-yl)propan-2-ol 2806719-45-7 C7H11N3O
2-Bromo-6-propoxypyridine 2-Bromo-6-propoxypyridine 891842-82-3 C8H10BrNO
3-Chloro-5-methyl-pyrazine-2-carbonitrile 3-Chloro-5-methyl-pyrazine-2-carbonitrile 181284-14-0 C6H4ClN3
(4S)-3-[(5R)-5-(4-FLUOROPHENYL)-5-HYDROXYPENTANOYL]-4-PHENYL-1,3-OXAZOLIDIN-2-ONE (4S)-3-[(5R)-5-(4-FLUOROPHENYL)-5-HYDROXYPENTANOYL]-4-PHENYL-1,3-OXAZOLIDIN-2-ONE 189028-95-3 C20H20FNO4
6-BROMO-2-METHYL-2H-INDAZOLE 6-BROMO-2-METHYL-2H-INDAZOLE 590417-95-1 C8H7BrN2
1-(5-Bromo-3-pyridyl)piperazine 1-(5-Bromo-3-pyridyl)piperazine 412347-30-9 C9H12BrN3
6-(pyridin-3-yl)pyridazin-3-amine 6-(pyridin-3-yl)pyridazin-3-amine 1159817-05-6 C9H8N4
2-{4-(trifluoromethyl)phenyl}-3-pyridinamine 2-{4-(trifluoromethyl)phenyl}-3-pyridinamine 886508-05-0 C12H9F3N2
3-Amino-5-bromo-thiophene-2-carboxylic acid methyl ester 3-Amino-5-bromo-thiophene-2-carboxylic acid methyl ester 107818-55-3 C6H6BrNO2S
4-ethyl-1,3-thiazol-2-amine(SALTDATA: HCl 0.7H2O) 4-ethyl-1,3-thiazol-2-amine(SALTDATA: HCl 0.7H2O) 34631-53-3 C5H8N2S
4-isopropoxy-6-methyl-2-pyrimidinamine(SALTDATA: FREE) 4-isopropoxy-6-methyl-2-pyrimidinamine(SALTDATA: FREE) 90556-28-8 C8H13N3O
2-(1H-imidazol-1-yl)-3-pyridinamine(SALTDATA: 2HCl) 2-(1H-imidazol-1-yl)-3-pyridinamine(SALTDATA: 2HCl) 156489-93-9 C8H8N4
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