CAS number index

CAS numbers starting with 51, page 12

3,648 chemicals have a CAS number that starts with 51. They are listed in CAS order.

Showing 1,101 to 1,200 of 3,648 chemicals

CAS numberChemical nameFormulaMol. weight

51276-85-82-Amino-1H-benzimidazol-5-olC₇H₇N₃O149.15
51277-96-4Palmitamidopropyltrimonium chlorideC₂₂H₄₇ClN₂O391.08
512776-10-21-(1-(4-Chlorophenyl)ethyl)piperazineC₁₂H₁₇ClN₂224.74
512778-95-91-(2-Methoxyethyl)piperidin-4-olC₈H₁₇NO₂159.23
51278-35-4LHRH, Ala(6)-C₅₆H₇₇N₁₇O₁₃1196.34
512787-29-02-(2-Methylphenyl)-1-pyrrolidin-1-ylethanoneC₁₃H₁₇NO203.28
512795-81-22-(3-Methoxy-4-propoxyphenyl)-N-[(4-phenyloxan-4-yl)methyl]acetamideC₂₄H₃₁NO₄397.51
512795-84-55-Ethyl-N-[(4-phenyloxan-4-yl)methyl]furan-2-carboxamideC₁₉H₂₃NO₃313.40
512795-86-7N-(4-Acetylphenyl)-4-phenyloxane-4-carboxamideC₂₀H₂₁NO₃323.39
512795-97-01-Phenyl-N-(2-phenylethyl)cyclopentane-1-carboxamideC₂₀H₂₃NO293.41
512796-15-5N-[(3-Methylphenyl)carbamothioyl]-3-phenylpropanamideC₁₇H₁₈N₂OS298.41
512796-21-32-(4-Methoxyphenyl)-N-[(3-methylphenyl)carbamothioyl]acetamideC₁₇H₁₈N₂O₂S314.41
512796-22-45-Bromo-N-[(3-methylphenyl)carbamothioyl]furan-2-carboxamideC₁₃H₁₁BrN₂O₂S339.21
512796-41-7N,N'-1,2,5-Oxadiazole-3,4-diylbis(2-phenoxyacetamide)C₁₈H₁₆N₄O₅368.35
5128-28-94,6-DinitrobenzofuroxanC₆H₂N₄O₆226.10
5128-29-01-Octadecanol, titanium(4+) salt (4:1)C₇₂H₁₄₈O₄Ti1125.84
5128-44-95-Hydroxy-7,4'-dimethoxyflavoneC₁₇H₁₄O₅298.29
5128-69-87-MethoxyisoflavanoneC₁₆H₁₄O₃254.28
512806-71-21-Methyl-2-(4-methylphenyl)-2-oxoethyl (4-methoxyphenyl)acetateC₁₉H₂₀O₄312.37
512807-32-8Methyl 4-[({[(4-bromo-1-ethyl-1H-pyrazol-3-yl)carbonyl]amino}carbothioyl)amino]benzoateC₁₅H₁₅BrN₄O₃S411.28
512807-39-5(E)-3-(1,5-Dimethylpyrazol-4-yl)-1-thiophen-2-ylprop-2-en-1-oneC₁₂H₁₂N₂OS232.31
512807-65-72-(1,3-Dimethylpyrazol-4-yl)-3-hydroxy-1,2-dihydroquinazolin-4-oneC₁₃H₁₄N₄O₂258.28
512807-67-9Ethyl 4-[(4-chloro-1-methyl-1H-pyrazol-5-yl)carbonyl]-1-piperazinecarboxylateC₁₂H₁₇ClN₄O₃300.75
512808-29-6Butyl 4-[({[(4-chloro-1-methyl-1H-pyrazol-5-yl)carbonyl]amino}carbothioyl)amino]benzoateC₁₇H₁₉ClN₄O₃S394.88
512808-30-95-(4-Chloro-1,5-dimethyl-1H-pyrazol-3-yl)-4-(4-methylphenyl)-4H-1,2,4-triazole-3-thiolC₁₄H₁₄ClN₅S319.82
512808-35-41-[[(1,5-Dimethyl-3-pyrazolyl)-oxomethyl]amino]-3-(2-methoxyphenyl)thioureaC₁₄H₁₇N₅O₂S319.39
512808-42-33-(1,3-Dimethyl-4-pyrazolyl)-4-(2-methoxyphenyl)-1H-1,2,4-triazole-5-thioneC₁₄H₁₅N₅OS301.38
512808-54-73-(4-Chloro-1,5-dimethyl-3-pyrazolyl)-4-(4-fluorophenyl)-1H-1,2,4-triazole-5-thioneC₁₃H₁₁ClFN₅S323.78
512808-59-21-[(2,5-Dimethylpyrazole-3-carbonyl)amino]-3-(2-methoxyphenyl)thioureaC₁₄H₁₇N₅O₂S319.39
512808-70-7Methyl 2-({[3,5-bis(difluoromethyl)-1H-pyrazol-1-yl]acetyl}amino)-4,5-dimethyl-3-thiophenecarboxylateC₁₅H₁₅F₄N₃O₃S393.36
512808-73-01-[(4-Chloro-2,5-dimethylpyrazole-3-carbonyl)amino]-3-(4-methylphenyl)thioureaC₁₄H₁₆ClN₅OS337.84
512808-77-41-[(4-Chloro-1,5-dimethylpyrazole-3-carbonyl)amino]-3-(4-methylphenyl)thioureaC₁₄H₁₆ClN₅OS337.84
512808-78-55-(1,5-Dimethyl-1H-pyrazol-3-yl)-4-(4-methylphenyl)-4H-1,2,4-triazole-3-thiolC₁₄H₁₅N₅S285.38
512808-92-35-(1,3-Dimethyl-1H-pyrazol-4-yl)-4-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiolC₁₃H₁₂FN₅S289.34
512808-98-92-[(4-Chloro-1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]-N-(2-methoxyphenyl)hydrazinecarbothioamideC₁₄H₁₆ClN₅O₂S353.83
512809-06-2N-(4-Chlorophenyl)-2-[(1,3-dimethyl-1H-pyrazol-4-yl)carbonyl]hydrazinecarbothioamideC₁₃H₁₄ClN₅OS323.81
512809-13-1Ethyl 2-(4-bromo-5-methyl-1H-pyrazol-1-yl)acetateC₈H₁₁BrN₂O₂247.09
512809-16-45-Ethyl 1-methyl-1H-pyrazole-3,5-dicarboxylateC₈H₁₀N₂O₄198.18
512809-24-43-Hydroxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)-2,3-dihydroquinazolin-4(1H)-oneC₁₄H₁₆N₄O₂272.31
512809-32-44(1H)-Quinazolinone, 2-(1,5-dimethyl-1H-pyrazol-4-yl)-2,3-dihydro-3-hydroxy-C₁₃H₁₄N₄O₂258.28
512809-48-23-(4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)propanoic acidC₈H₁₁BrN₂O₂247.09
512809-63-12-(4-Bromo-5-methyl-1H-pyrazol-1-yl)acetic acidC₆H₇BrN₂O₂219.04
512809-65-33-(4-Methyl-1H-pyrazol-1-yl)propanoic acidC₇H₁₀N₂O₂154.17
512809-71-1Ethyl [4-bromo-3-(difluoromethyl)-5-methyl-1H-pyrazol-1-yl]acetateC₉H₁₁BrF₂N₂O₂297.10
512809-73-33-(1,5-Dimethylpyrazol-4-yl)prop-2-enoic acidC₈H₁₀N₂O₂166.18
512809-80-2[3-(3,5-Dimethyl-1H-pyrazol-4-yl)-adamantan-1-yl]-acetic acidC₁₇H₂₄N₂O₂288.39
512809-81-34-Bromo-1-methyl-1H-pyrazole-5-carbohydrazideC₅H₇BrN₄O219.04
512809-86-85-(Difluoromethyl)-3-methyl-1H-pyrazole-1-acetic acidC₇H₈F₂N₂O₂190.15
512809-88-04-[(4-Bromo-1H-pyrazol-1-yl)methyl]benzohydrazideC₁₁H₁₁BrN₄O295.14
512809-89-1(2E)-3-{4-Methoxy-3-[(2-methylphenoxy)methyl]phenyl}prop-2-enoic acidC₁₈H₁₈O₄298.34
512809-90-41-[(2-Chloro-6-fluorophenyl)methyl]-1H-pyrazol-3-amineC₁₀H₉ClFN₃225.65
512809-96-0Ethyl 4-chloro-1,5-dimethyl-1H-pyrazole-3-carboxylateC₈H₁₁ClN₂O₂202.64
51281-81-3Methyl 2-(2-acetyl-3-hydroxyphenyl)acetateC₁₁H₁₂O₄208.21
512810-02-51H-Pyrazole-1-acetic acid, 4-bromo-3-methyl-C₆H₇BrN₂O₂219.04
512810-03-6(2E)-3-{4-Methoxy-3-[(3-methylphenoxy)methyl]phenyl}prop-2-enoic acidC₁₈H₁₈O₄298.34
512810-07-0(1,3-Diphenyl-1H-pyrazol-4-yl)methylamineC₁₆H₁₅N₃249.32
512810-17-2Ethyl 2-(4-bromo-3-methyl-1H-pyrazol-1-yl)acetateC₈H₁₁BrN₂O₂247.09
512810-21-84-Nitro-1H-pyrazole-1-propanoic acidC₆H₇N₃O₄185.14
512810-25-21,3-Dimethyl-1H-pyrazole-4-carbohydrazideC₆H₁₀N₄O154.17
512810-26-34-Chloro-3-methyl-5-nitro-1H-pyrazoleC₄H₄ClN₃O₂161.55
512810-41-24-[(2-Bromophenoxy)methyl]-N-[4-(1H-pyrazol-1-ylmethyl)phenyl]benzamideC₂₄H₂₀BrN₃O₂462.35
512810-49-03-(1,3-Dimethyl-1H-pyrazol-4-yl)-1-(2-thienyl)-2-propen-1-oneC₁₂H₁₂N₂OS232.31
512810-64-92-[(4-Chloro-1-methyl-1H-pyrazol-3-yl)carbonyl]-N-(4-methylphenyl)hydrazinecarbothioamideC₁₃H₁₄ClN₅OS323.81
512810-72-91-[(4-Chloro-1,5-dimethylpyrazole-3-carbonyl)amino]-3-(furan-2-ylmethyl)thioureaC₁₂H₁₄ClN₅O₂S327.80
512810-76-33-(2,5-Dimethylpyrazol-3-yl)-4-(furan-2-ylmethyl)-1H-1,2,4-triazole-5-thioneC₁₂H₁₃N₅OS275.34
512810-84-35-(4-Chloro-1-methyl-1H-pyrazol-3-yl)-4-(4-methylphenyl)-4H-1,2,4-triazole-3-thiolC₁₃H₁₂ClN₅S305.79
512810-97-81,5-Dimethyl-1H-pyrazole-3-carboxylic acid 2-(((2-furanylmethyl)amino)thioxomethyl)hydrazideC₁₂H₁₅N₅O₂S293.35
512811-03-93-(4-Chloro-1-methylpyrazol-3-yl)-4-phenyl-1H-1,2,4-triazole-5-thioneC₁₂H₁₀ClN₅S291.77
512811-44-8N-(2-Methoxybenzyl)-5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxamideC₂₅H₂₃N₃O₂397.48
512811-46-0N-(4-Fluorobenzyl)-5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxamideC₂₄H₂₀FN₃O385.44
512811-47-13-(4-Chloro-1,5-dimethylpyrazol-3-yl)-4-(furan-2-ylmethyl)-1H-1,2,4-triazole-5-thioneC₁₂H₁₂ClN₅OS309.78
512811-61-92-[(4-Chloro-1-methyl-1H-pyrazol-3-yl)carbonyl]-N-(3-methylphenyl)hydrazinecarbothioamideC₁₃H₁₄ClN₅OS323.81
512811-73-35-(1,5-Dimethyl-1H-pyrazol-3-yl)-4-(2-furylmethyl)-4H-1,2,4-triazole-3-thiolC₁₂H₁₃N₅OS275.34
512812-00-9N-(1H-Indol-2-ylmethyl)-2-(4-nitropyrazol-1-yl)acetamideC₁₄H₁₃N₅O₃299.29
512812-23-61-(2-Methylpropyl)-3-[3-(4-methylpyrazol-1-yl)propanoylamino]thioureaC₁₂H₂₁N₅OS283.40
512812-24-72-[(4-Chloro-1,5-dimethyl-1H-pyrazol-3-yl)carbonyl]-N-phenylhydrazinecarbothioamideC₁₃H₁₄ClN₅OS323.81
512812-40-73-{4-Nitro-3,5-dimethyl-1H-pyrazol-1-yl}-N'-[(1,3,5-trimethyl-1H-pyrazol-4-yl)methylene]propanohydrazideC₁₅H₂₁N₇O₃347.38
512812-41-82-[3-(4-Chlorophenyl)-1H-pyrazol-4-yl]-3-hydroxy-2,3-dihydro-4(1H)-quinazolinoneC₁₇H₁₃ClN₄O₂340.77
512812-47-42-(1-Ethyl-3-methyl-1H-pyrazol-4-yl)-3-hydroxy-2,3-dihydroquinazolin-4(1H)-oneC₁₄H₁₆N₄O₂272.31
512812-89-4N-Benzyl-2-[(4-chloro-1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]hydrazinecarbothioamideC₁₄H₁₆ClN₅OS337.84
512812-92-9N-(3-Methylphenyl)-2-[3-(4-methyl-1H-pyrazol-1-yl)propanoyl]hydrazinecarbothioamideC₁₅H₁₉N₅OS317.42
512813-78-43-(4-Chloro-2,5-dimethylpyrazol-3-yl)-4-(furan-2-ylmethyl)-1H-1,2,4-triazole-5-thioneC₁₂H₁₂ClN₅OS309.78
512813-87-51-[(4-Chloro-2,5-dimethylpyrazole-3-carbonyl)amino]-3-(furan-2-ylmethyl)thioureaC₁₂H₁₄ClN₅O₂S327.80
512813-88-6N-(3-Chlorophenyl)-2-[3-(4-methyl-1H-pyrazol-1-yl)propanoyl]hydrazinecarbothioamideC₁₄H₁₆ClN₅OS337.84
512813-89-7N-Butyl-2-[3-(4-methyl-1H-pyrazol-1-yl)propanoyl]hydrazinecarbothioamideC₁₂H₂₁N₅OS283.40
512814-02-73-[(3,5-Dimethyl-4-nitropyrazol-1-yl)methyl]-4-(3-methylphenyl)-1H-1,2,4-triazole-5-thioneC₁₅H₁₆N₆O₂S344.40
512814-18-54-[(2-Bromophenoxy)methyl]-N-[4-[(3,5-dimethyl-1-pyrazolyl)methyl]phenyl]benzamideC₂₆H₂₄BrN₃O₂490.40
512814-31-2(E)-3-(1,5-Dimethylpyrazol-4-yl)-1-(4-propan-2-ylphenyl)prop-2-en-1-oneC₁₇H₂₀N₂O268.36
512814-33-45-(4-Chloro-1-methyl-1H-pyrazol-3-yl)-4-cyclohexyl-4H-1,2,4-triazole-3-thiolC₁₂H₁₆ClN₅S297.81
512814-58-32-{4-Nitro-3,5-dimethyl-1H-pyrazol-1-yl}-N-(1H-indol-2-ylmethyl)acetamideC₁₆H₁₇N₅O₃327.34
512815-17-72-(3,5-Dimethyl-4-nitropyrazol-1-yl)-N-[(4-pyrazol-1-ylphenyl)methyl]acetamideC₁₇H₁₈N₆O₃354.37
512815-65-5N-{4-[(3,5-Dimethyl-1H-pyrazol-1-yl)methyl]phenyl}-1-ethyl-4-nitro-1H-pyrazole-3-carboxamideC₁₈H₂₀N₆O₃368.40
512816-10-34-[1-({1-Ethyl-4-nitro-1H-pyrazol-3-yl}carbonyl)-5-(2-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-3-yl]-2-methoxyphenolC₂₂H₂₁N₅O₆451.44
512816-44-3(1-Ethyl-4-nitropyrazol-3-yl)-[3-(4-nitrophenyl)-5-phenyl-3,4-dihydropyrazol-2-yl]methanoneC₂₁H₁₈N₆O₅434.41
512816-49-84-Chloro-1-methyl-N-[(1-methyl-1H-pyrazol-5-yl)methyl]-1H-pyrazole-5-carboxamideC₁₀H₁₂ClN₅O253.69
512816-64-74-Chloro-2-methyl-N-[4-(piperidin-1-ylmethyl)phenyl]pyrazole-3-carboxamideC₁₇H₂₁ClN₄O332.83
512816-80-7N-[1-(4-tert-Butylphenyl)ethyl]-2-(4-nitropyrazol-1-yl)acetamideC₁₇H₂₂N₄O₃330.39
512817-26-43-Hydroxy-2-(3-phenyl-1H-pyrazol-4-yl)-2,3-dihydro-4(1H)-quinazolinoneC₁₇H₁₄N₄O₂306.32
512817-82-21-Ethyl-N-[5-methyl-4-(4-methylphenyl)-1,3-thiazol-2-yl]-4-nitropyrazole-3-carboxamideC₁₇H₁₇N₅O₃S371.42
512818-09-6N'-[(1,5-Dimethyl-1H-pyrazol-4-yl)methylene]-9-hydroxy-9H-fluorene-9-carbohydrazideC₂₀H₁₈N₄O₂346.39

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