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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
5-(2-BROMOPHENYL)PYRIDIN-2-AMINE 5-(2-BROMOPHENYL)PYRIDIN-2-AMINE 142713-72-2 C11H9BrN2
5-(4-fluorophenyl)pyrimidin-2-amine 5-(4-fluorophenyl)pyrimidin-2-amine 31408-40-9 C10H8FN3
5-(Pyrazin-2-yl)-2-bromopyrazine 5-(Pyrazin-2-yl)-2-bromopyrazine 1563529-41-8 C8H5BrN4
5-(tetrahydro-2H-pyran-2-yl)pyrazin-2-ol 5-(tetrahydro-2H-pyran-2-yl)pyrazin-2-ol 2222934-26-9 C9H12N2O2
5-Amino-2-(4-methylimidazol-1-yl)thiazole 5-Amino-2-(4-methylimidazol-1-yl)thiazole 1314356-51-8 C7H8N4S
5-bromo-1-(3-(trifluoromethyl)phenyl)-1,3-dihydro-2H-imidazol-2-one 5-bromo-1-(3-(trifluoromethyl)phenyl)-1,3-dihydro-2H-imidazol-2-one 2294947-57-0 C10H6BrF3N2O
5-bromo-1-(4-(trifluoromethyl)phenyl)-1,3-dihydro-2H-imidazol-2-one 5-bromo-1-(4-(trifluoromethyl)phenyl)-1,3-dihydro-2H-imidazol-2-one 2294957-91-6 C10H6BrF3N2O
5-bromo-1-(sec-butyl)-1,3-dihydro-2H-imidazol-2-one 5-bromo-1-(sec-butyl)-1,3-dihydro-2H-imidazol-2-one 2294957-18-7 C7H11BrN2O
5-bromo-1-cyclopentyl-1,3-dihydro-2H-imidazol-2-one 5-bromo-1-cyclopentyl-1,3-dihydro-2H-imidazol-2-one 2294944-36-6 C8H11BrN2O
5-Bromo-2-(1H-Pyrrol-1-yl)thiazole 5-Bromo-2-(1H-Pyrrol-1-yl)thiazole 383142-31-2 C7H5BrN2S
5-Bromo-2-(cyclobutyl)thiazole 5-Bromo-2-(cyclobutyl)thiazole 1086382-50-4 C7H8BrNS
5-bromo-2-(ethoxy-d5)-1-(phenyl-d5)-1H-imidazole-4-d 5-bromo-2-(ethoxy-d5)-1-(phenyl-d5)-1H-imidazole-4-d 2294948-10-8 C11H11BrN2O
5-Bromo-4-ethyl-2-(N-methylpiperazin-1-yl)thiazole 5-Bromo-4-ethyl-2-(N-methylpiperazin-1-yl)thiazole 1643539-29-0 C10H16BrN3S
5-BROMO-6-CYCLOPROPYLPYRIMIDIN-4-AMINE 5-BROMO-6-CYCLOPROPYLPYRIMIDIN-4-AMINE 1434127-33-9 C7H8BrN3
5-Fluoro-3,4-dihydro-2H-pyran 5-Fluoro-3,4-dihydro-2H-pyran 1622840-65-6 C5H7FO
6-(2-fluorophenyl)pyridin-3-amine 6-(2-fluorophenyl)pyridin-3-amine 160664-94-8 C11H9FN2
6-(4-BROMOPHENYL)PYRIDIN-3-AMINE 6-(4-BROMOPHENYL)PYRIDIN-3-AMINE 1367930-24-2 C11H9BrN2
6-(methoxy-d3)pyrazin-3,5-d2-2-amine 6-(methoxy-d3)pyrazin-3,5-d2-2-amine 2256707-58-9 C5H7N3O
Pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione, 10-ethyl-3-methyl- Pyrimido[4,5-b]quinoline-2,4(3H,10H)-dione, 10-ethyl-3-methyl- 59997-14-7 C14H13N3O2
2-Pyridinamine, 5-propoxy- 2-Pyridinamine, 5-propoxy- 79567-65-0 C8H12N2O
2-Pyridinamine, 5-(2-furanyl)- 2-Pyridinamine, 5-(2-furanyl)- 827588-93-2 C9H8N2O
Dibenzoyl-D-tartaric acid Dibenzoyl-D-tartaric acid 17026-42-5 C18H14O8
1-Piperidinecarboxylic acid, 3-(5-bromo-2-thienyl)-, 1,1-dimethylethyl ester 1-Piperidinecarboxylic acid, 3-(5-bromo-2-thienyl)-, 1,1-dimethylethyl ester 1622834-60-9 C14H20BrNO2S
(3-(dibenzo[b,d]furan-4-yl)phenyl)boronic acid (3-(dibenzo[b,d]furan-4-yl)phenyl)boronic acid 1271726-52-3 C18H13BO3
5-ethoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-ethoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2223053-22-1 C13H20BNO3
7-BROMO-PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER 7-BROMO-PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER 885276-77-7 C10H9BrN2O2
6-(4-Amino-2,6-dichlorophenoxy)-4-isopropylpyridazin-3(2H)-one 6-(4-Amino-2,6-dichlorophenoxy)-4-isopropylpyridazin-3(2H)-one 920509-28-0 C13H13Cl2N3O2
6-bromo-3,4'-bipyridine 6-bromo-3,4'-bipyridine 1142197-30-5 C10H7BrN2
5-bromo-2-(2-methylpiperidin-1-yl)-1,3-thiazole 5-bromo-2-(2-methylpiperidin-1-yl)-1,3-thiazole 959240-04-1 C9H13BrN2S
4-piperidin-1-yl-1,3-thiazol-2-amine 4-piperidin-1-yl-1,3-thiazol-2-amine 1092289-19-4 C8H13N3S
3-ETHYL-1-METHYL-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE 3-ETHYL-1-METHYL-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE 1619991-78-4 C12H21BN2O2
6-(tetrahydrofuran-3-yl)pyrazin-2-amine 6-(tetrahydrofuran-3-yl)pyrazin-2-amine 2167947-36-4 C8H11N3O
6-Amino-8-methylimidazo[1,2-a]pyrazine 6-Amino-8-methylimidazo[1,2-a]pyrazine 1159821-60-9 C7H8N4
6-Hydroxy-8-phenylimidazo[1,2-a]pyrazine 6-Hydroxy-8-phenylimidazo[1,2-a]pyrazine 1159816-01-9 C12H9N3O
6-PROPOXYPYRIDIN-3-YLAMINE 6-PROPOXYPYRIDIN-3-YLAMINE 52025-35-1 C8H12N2O
8-Bromo-6-phenylimidazo[1,2-a]pyrazine 8-Bromo-6-phenylimidazo[1,2-a]pyrazine 756772-44-8 C12H8BrN3
8-Hydroxy-6-(cyclopropyl)imidazo[1,2-a]pyrazine 8-Hydroxy-6-(cyclopropyl)imidazo[1,2-a]pyrazine 1159818-70-8 C9H9N3O
methyl 2-(4-bromo-2-methyl-1H-imidazol-1-yl)benzoate methyl 2-(4-bromo-2-methyl-1H-imidazol-1-yl)benzoate 2294945-90-5 C12H11BrN2O2
methyl 2-(4-methylpiperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate methyl 2-(4-methylpiperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate 2256756-10-0 C20H30BNO4
methyl 3-(2-bromo-1H-imidazol-1-yl)benzoate methyl 3-(2-bromo-1H-imidazol-1-yl)benzoate 2294946-86-2 C11H9BrN2O2
methyl 3-(4-bromo-2-methyl-1H-imidazol-1-yl)benzoate methyl 3-(4-bromo-2-methyl-1H-imidazol-1-yl)benzoate 2294946-03-3 C12H11BrN2O2
Methyl 5-bromo-4-cyclopropylthiazole-2-carboxylate Methyl 5-bromo-4-cyclopropylthiazole-2-carboxylate 1314354-12-5 C8H8BrNO2S
tert-butyl 2-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole-1-carboxylate-5-d tert-butyl 2-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole-1-carboxylate-5-d 2256711-55-2 C15H25BN2O5
tert-butyl 3-(2-aminopyridin-4-yl)pyrrolidine-1-carboxylate tert-butyl 3-(2-aminopyridin-4-yl)pyrrolidine-1-carboxylate 2222933-77-7 C14H21N3O2
tert-butyl 3-(2-chloropyrimidin-5-yl)pyrrolidine-1-carboxylate tert-butyl 3-(2-chloropyrimidin-5-yl)pyrrolidine-1-carboxylate 2222933-86-8 C13H18ClN3O2
tert-butyl 3-(6-aminopyridin-2-yl)pyrrolidine-1-carboxylate tert-butyl 3-(6-aminopyridin-2-yl)pyrrolidine-1-carboxylate 1440427-80-4 C14H21N3O2
tert-butyl 3-(6-hydroxypyridin-2-yl)pyrrolidine-1-carboxylate tert-butyl 3-(6-hydroxypyridin-2-yl)pyrrolidine-1-carboxylate 2222934-22-5 C14H20N2O3
tert-butyl 4-(2-bromophenyl)-1H-pyrazole-1-carboxylate-3,5-d2 tert-butyl 4-(2-bromophenyl)-1H-pyrazole-1-carboxylate-3,5-d2 2256711-78-9 C14H15BrN2O2
tert-butyl 4-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 tert-butyl 4-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 2256704-15-9 C22H32BF3N2O4
tert-butyl 4-(3-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 tert-butyl 4-(3-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 2256704-91-1 C22H35BN2O5
tert-butyl 4-(3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 tert-butyl 4-(3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 2256705-01-6 C21H32BClN2O4
tert-butyl 4-(3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 tert-butyl 4-(3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 2256704-81-9 C21H32BFN2O4
tert-butyl 4-(3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 tert-butyl 4-(3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8 2256705-05-0 C22H35BN2O4
tert-butyl 4-(4-bromo-3-methoxyphenyl)piperazine-1-carboxylate tert-butyl 4-(4-bromo-3-methoxyphenyl)piperazine-1-carboxylate 1146950-52-8 C16H23BrN2O3
(2-Aminophenyl)dimethylphosphine Oxide (2-Aminophenyl)dimethylphosphine Oxide 1197953-47-1 C8H12NOP
6-(2-Fluorophenyl)pyridin-3-ol 6-(2-Fluorophenyl)pyridin-3-ol 859538-49-1 C11H8FNO
tert-butyl 3-broMo-5H-pyrrolo[3,4-b]pyridine-6(7H)-carboxylate tert-butyl 3-broMo-5H-pyrrolo[3,4-b]pyridine-6(7H)-carboxylate 1393546-06-9 C12H15BrN2O2
tert-butyl 4-(2-broMopyridin-4-yl)piperazine-1-carboxylate tert-butyl 4-(2-broMopyridin-4-yl)piperazine-1-carboxylate 1266118-96-0 C14H20BrN3O2
8-benzyloxy-2-chloroquinoline 8-benzyloxy-2-chloroquinoline 343788-51-2 C16H12ClNO
Methyl 4-broMo-6-Methoxypyridine-2-carboxylate Methyl 4-broMo-6-Methoxypyridine-2-carboxylate 1256789-39-5 C8H8BrNO3
2-broMo-5-isopropoxypyrazine 2-broMo-5-isopropoxypyrazine 959238-74-5 C7H9BrN2O
4-Bromo-1,5-dimethyl-1H-pyrrole-2-carbonitrile 4-Bromo-1,5-dimethyl-1H-pyrrole-2-carbonitrile 142057-56-5 C7H7BrN2
1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine hydrochloride 1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine hydrochloride 52605-52-4 C13H19Cl3N2
4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide 4-(4-Cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide 1050477-27-4 C21H22N4O3
Methyl 2-((2R,4aS,6S,7R,8S,8aS)-7,8-bis((tert-butyldimethylsilyl)oxy)-6-((S,E)-1-((tert-butyldimethylsilyl)oxy)-3-iodoallyl)octahydropyrano[3,2-b]pyran-2-yl)acetate Methyl 2-((2R,4aS,6S,7R,8S,8aS)-7,8-bis((tert-butyldimethylsilyl)oxy)-6-((S,E)-1-((tert-butyldimethylsilyl)oxy)-3-iodoallyl)octahydropyrano[3,2-b]pyran-2-yl)acetate 157322-83-3 C32H63IO7Si3
6-Bromo-5-fluoronicotinaldehyde 6-Bromo-5-fluoronicotinaldehyde 1227588-59-1 C6H3BrFNO
2-methyl-6-(3-piperidinyl)Pyridine 2-methyl-6-(3-piperidinyl)Pyridine 862718-68-1 C11H16N2
5-morpholinopyridin-3-amine 5-morpholinopyridin-3-amine 1008853-90-4 C9H13N3O
2-bromo-4-iodo-6-(trifluoromethyl)pyridine 2-bromo-4-iodo-6-(trifluoromethyl)pyridine 749875-09-0 C6H2BrF3IN
2-bromo-4-tert-butoxypyridine 2-bromo-4-tert-butoxypyridine 1086381-34-1 C9H12BrNO
3-bromo-5-(oxetan-3-yl)pyridine 3-bromo-5-(oxetan-3-yl)pyridine 1404367-33-4 C8H8BrNO
2-tert-butyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole 2-tert-butyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole 1426089-85-1 C13H22BNO2S
5-propyl-2(1H)-Pyrazinone 5-propyl-2(1H)-Pyrazinone 156573-07-8 C7H10N2O
2-chloro-5-(3-chlorophenyl)Pyrimidine 2-chloro-5-(3-chlorophenyl)Pyrimidine 74963-13-6 C10H6Cl2N2
3-(4-methylpiperazin-1-yl)phenol 3-(4-methylpiperazin-1-yl)phenol 177489-10-0 C11H16N2O
2-bromo-5-propylPyrimidine 2-bromo-5-propylPyrimidine 679406-51-0 C7H9BrN2
5-(tetrahydro-2H-pyran-4-yl)pyrazin-2-amine 5-(tetrahydro-2H-pyran-4-yl)pyrazin-2-amine 1159815-73-2 C9H13N3O
3-bromo-5-methoxy-2-(trifluoromethyl)pyridine 3-bromo-5-methoxy-2-(trifluoromethyl)pyridine 1211589-18-2 C7H5BrF3NO
3-(4-fluorophenyl)pyridin-2-ylamine 3-(4-fluorophenyl)pyridin-2-ylamine 1214333-67-1 C11H9FN2
3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2(3H)-benzoxazolone 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2(3H)-benzoxazolone 1220696-32-1 C14H18BNO4
1-p-Tolylpyrazole-4-boronic acid 1-p-Tolylpyrazole-4-boronic acid 1072945-92-6 C10H11BN2O2
2-Bromo-4,6-dichloropyrimidine 2-Bromo-4,6-dichloropyrimidine 1399480-88-6 C4HBrCl2N2
5-Bromo-1,3-dihydro-isoindole-2-carboxylic acid benzyl ester 5-Bromo-1,3-dihydro-isoindole-2-carboxylic acid benzyl ester 178445-27-7 C16H14BrNO2
5-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine-2-carboxylic acid methyl ester 5-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine-2-carboxylic acid methyl ester 1842396-18-2 C14H20BNO4
6-Methyl-5-trifluoromethyl-pyridin-2-ylamine 6-Methyl-5-trifluoromethyl-pyridin-2-ylamine 1023813-33-3 C7H7F3N2
3-(1H-Pyrazol-4-yl)-piperidine 3-(1H-Pyrazol-4-yl)-piperidine 1211515-46-6 C8H13N3
3-Isopropylpyridine-4-boronic acid pinacol ester 3-Isopropylpyridine-4-boronic acid pinacol ester 2096338-99-5 C14H22BNO2
4-[3-(TRIFLUOROMETHYL)PHENYL]-2-PYRIMIDINAMINE 4-[3-(TRIFLUOROMETHYL)PHENYL]-2-PYRIMIDINAMINE 866019-76-3 C11H8F3N3
5-bromo-2-methyl-1-(1-methylethyl)- 1H-imidazole 5-bromo-2-methyl-1-(1-methylethyl)- 1H-imidazole 1204228-25-0 C7H11BrN2
1-(tetrahydro-2H-pyran-3-yl)-1H-pyrazol-4-amine 1-(tetrahydro-2H-pyran-3-yl)-1H-pyrazol-4-amine 1353857-19-8 C8H13N3O
5-Bromo-3-hydroxypyridazine 5-Bromo-3-hydroxypyridazine 67264-08-8 C4H3BrN2O
3-AMINO-2-(TERT-BUTYL)PYRIDINE 3-AMINO-2-(TERT-BUTYL)PYRIDINE 1417518-28-5 C9H14N2
1-(4-Fluorophenyl)-1H-imidazol-2-amine 1-(4-Fluorophenyl)-1H-imidazol-2-amine 801182-85-4 C9H8FN3
1-Isopropyl-1H-imidazol-2-amine 1-Isopropyl-1H-imidazol-2-amine 1056619-71-6 C6H11N3
4-Pyrimidinamine,2-methyl-6-propyl- 4-Pyrimidinamine,2-methyl-6-propyl- 90088-76-9 C8H13N3
2-bromo-5-(4-chlorophenyl)thiazole 2-bromo-5-(4-chlorophenyl)thiazole 1353856-05-9 C9H5BrClNS
2-Bromo-4-methoxy-5-(trifluoromethyl)pyridine 2-Bromo-4-methoxy-5-(trifluoromethyl)pyridine 1227579-45-4 C7H5BrF3NO
4-Bromo-2-fluoro-6-(trifluoromethyl)pyridine 4-Bromo-2-fluoro-6-(trifluoromethyl)pyridine 1227598-78-8 C6H2BrF4N
4,4',4'',4'''-(pyrene-1,3,6,8-tetrayl)tetrabenzaldehyde 4,4',4'',4'''-(pyrene-1,3,6,8-tetrayl)tetrabenzaldehyde 1415238-25-3 C44H26O4
bis-PEG2-endo-BCN bis-PEG2-endo-BCN 1476737-97-9 C28H40N2O6
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