CAS number index

CAS numbers starting with 251

390 chemicals have a CAS number that starts with 251. They are listed in CAS order.

Showing 1 to 100 of 390 chemicals

CAS numberChemical nameFormulaMol. weight

251-41-2Thieno(3,2-b)thiopheneC₆H₄S₂140.23
251-60-53H-PyrrolizineC₇H₇N105.14
251-80-95H-Imidazo(1,2-b)pyrazoleC₅H₅N₃107.12
251-97-8Imidazo(2,1-b)thiazoleC₅H₄N₂S124.17
2510-01-22-(2,3-Dihydro-1H-inden-1-yliden)malononitrileC₁₂H₈N₂180.21
2510-22-74-EthynylpyridineC₇H₅N103.12
2510-27-22-(Dimethyl-1,2-oxazol-4-yl)acetic acidC₇H₉NO₃155.15
2510-32-94-Methyl-1,3-oxazole-5-carboxylic acidC₅H₅NO₃127.10
2510-36-33,5-Dimethylisoxazole-4-carboxylic acidC₆H₇NO₃141.13
2510-37-4Dimethyl-1,3-oxazole-5-carboxylic acidC₆H₇NO₃141.13
2510-38-5N-Acetylpenicillamine, (L)-C₇H₁₃NO₃S191.25
2510-55-69-PhenanthrenecarbonitrileC₁₅H₉N203.24
2510-75-0p,p'-DimethoxystilbeneC₁₆H₁₆O₂240.30
2510-86-3Diethyl phenyl phosphateC₁₀H₁₅O₄P230.20
2510-95-4(Z)-2,3-DiphenylacrylonitrileC₁₅H₁₁N205.26
2510-99-8Benzeneacetic acid, alpha-methyl-, ethyl esterC₁₁H₁₄O₂178.23
25100-12-3N-Cyclohexylhydroxylamine hydrochlorideC₆H₁₄ClNO151.64
25102-62-92-Ethylcyclopentane-1-carboxylic acidC₈H₁₄O₂142.20
25103-09-7Isooctyl thioglycolateC₁₀H₂₀O₂S204.34
25103-12-2TriisooctylphosphiteC₂₄H₅₁O₃P418.64
25103-23-5Triisooctyl phosphateC₂₄H₅₁O₄P434.64
25103-52-0Isooctanoic acidC₈H₁₆O₂144.21
25103-54-2Zinc isodecyl phosphorodithioateC₄₀H₈₄O₄P₂S₄Zn884.71
25108-21-82-(1,3-Benzothiazol-2-ylmethyl)benzoic acidC₁₅H₁₁NO₂S269.32
25108-32-11-(4-Chlorophenyl)-1H-tetrazoleC₇H₅ClN₄180.60
25108-58-11-Bromo-3-(prop-1-en-2-yl)benzeneC₉H₉Br197.07
251085-87-7Methyl 5-bromo-2-chlorobenzoateC₈H₆BrClO₂249.49
2510868-43-45-Bromo-3-methyl-1H-pyrazole-4-carboxylic acidC₅H₅BrN₂O₂205.01
251088-09-24-Oxo-N-phenylspiro[chroman-2,4'-piperidine]-1'-carboxamideC₂₀H₂₀N₂O₃336.39
25109-26-62-SelenophenecarboxaldehydeC₅H₄OSe159.05
25109-28-81-Bromo-4-cyclohexylbenzeneC₁₂H₁₅Br239.16
251096-48-71-{1-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-2-methyl-1H-imidazol-4-yl}-1-ethanone oximeC₁₂H₁₀ClF₃N₄O318.69
251096-51-21-(1,1-Dioxothiolan-3-yl)pyrazole-4-carboxamideC₈H₁₁N₃O₃S229.26
251096-53-4Methyl 3-phenyl-6-(trifluoromethyl)thieno[3,2-b]pyridine-2-carboxylateC₁₆H₁₀F₃NO₂S337.32
251096-58-97-(4-Chlorophenyl)-2-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]thio]-[1,2,4]triazolo[1,5-a]pyrimidineC₁₇H₈Cl₂F₃N₅S442.25
251096-77-24-Fluoro-N-(4-piperidinophenyl)benzenecarboxamideC₁₈H₁₉FN₂O298.36
251096-84-13-[(3,4-Dichlorobenzyl)sulfanyl]-2-thiophenecarboxylic acidC₁₂H₈Cl₂O₂S₂319.23
251096-93-23-[(2-Methoxy-2-oxoethyl)sulfanyl]-2-thiophenecarboxylic acidC₈H₈O₄S₂232.28
251096-96-51-(4-Fluorobenzenesulfonyl)pyrrolidine-2-carboxylic acidC₁₁H₁₂FNO₄S273.29
251096-97-61-((3-(Trifluoromethyl)phenyl)sulfonyl)pyrrolidine-2-carboxylic acidC₁₂H₁₂F₃NO₄S323.29
251097-14-04-Fluoro-N-[4-(pyrrolidin-1-yl)phenyl]benzamideC₁₇H₁₇FN₂O284.33
251097-15-12-Chloro-N-(4-(pyrrolidin-1-yl)phenyl)acetamideC₁₂H₁₅ClN₂O238.72
251097-16-21-[(4-Bromophenyl)sulfonyl]prolineC₁₁H₁₂BrNO₄S334.19
251097-20-83-Chloro-N-[4-(pyrrolidin-1-yl)phenyl]benzamideC₁₇H₁₇ClN₂O300.79
251097-22-02,4-Dichloro-N-(4-pyrrolidin-1-ylphenyl)benzamideC₁₇H₁₆Cl₂N₂O335.23
251097-24-22,2-Dimethyl-N-[4-(1-pyrrolidinyl)phenyl]propanamideC₁₅H₂₂N₂O246.35
251097-26-4Methyl 2-{[(2-chlorophenyl)sulfonyl]amino}-2-phenylacetateC₁₅H₁₄ClNO₄S339.80
251097-29-72-Methyl-N-[4-(pyrrolidin-1-yl)phenyl]propanamideC₁₄H₂₀N₂O232.33
251097-30-02-Chloro-4-(methylsulfonyl)-N-[4-(1-pyrrolidinyl)phenyl]benzenecarboxamideC₁₈H₁₉ClN₂O₃S378.88
251097-31-1N-[4-(1-Pyrrolidinyl)phenyl]pentanamideC₁₅H₂₂N₂O246.35
251097-32-22-Chloro-N-(4-(pyrrolidin-1-yl)phenyl)propanamideC₁₃H₁₇ClN₂O252.75
251097-45-73-[(2,4-Dichlorobenzyl)sulfanyl]-2-thiophenecarboxylic acidC₁₂H₈Cl₂O₂S₂319.23
251097-48-04-Methyl-N-[4-(1-pyrrolidinyl)phenyl]benzenecarboxamideC₁₈H₂₀N₂O280.37
251097-65-14-Methyl-2-(3-(trifluoromethyl)phenylsulfonamido)pentanoic acidC₁₃H₁₆F₃NO₄S339.33
251097-68-41-(4-Fluorophenyl)-4-(4-nitrophenyl)piperazineC₁₆H₁₆FN₃O₂301.32
251097-69-54-[4-(4-Fluorophenyl)piperazino]anilineC₁₆H₁₈FN₃271.34
251097-70-85-(4-Chlorophenyl)-2-[(4-methylphenyl)sulfonyl]-5-oxopentanamideC₁₈H₁₈ClNO₄S379.87
2511-00-4Ethyl 2-cyclohexylpropionateC₁₁H₂₀O₂184.28
2511-10-6Phosphonothioic acid, P-methyl-, O,S-diethyl esterC₅H₁₃O₂PS168.20
2511-17-3Pentamethylphosphonic diamideC₅H₁₅N₂OP150.16
2511-22-0Methyl 3,5-bis-tert-butyl-4-hydroxybenzoateC₁₆H₂₄O₃264.37
2511-95-71,2-DimethylcyclopropaneC₅H₁₀70.14
25110-41-2N-Phenyl-2-piperidinosuccinimideC₁₅H₁₈N₂O₂258.32
25110-46-72-(4-Methoxyphenyl)-1H-perimidineC₁₈H₁₄N₂O274.32
25110-61-6Hexanoic acid, 3-propyl-C₉H₁₈O₂158.24
251102-27-9Pyrrolo(1,2-c)pyrimidine-3-carboxylic acidC₈H₆N₂O₂162.15
251103-08-95-[(3,4-Dichlorophenyl)sulfinyl]-4-methyl-1,2,3-thiadiazoleC₉H₆Cl₂N₂OS₂293.20
251106-30-6SpdSyn binder-1C₂₁H₂₂N₄O346.43
251107-32-14-(2-Chlorobenzyl)piperidineC₁₂H₁₆ClN209.72
25111-05-1Trimethylolpropane dioleateC₄₂H₇₈O₅663.08
25111-39-11-Cyclopropyl-2-hydroxypropan-1-oneC₆H₁₀O₂114.14
251111-15-6Ckd-731C₂₈H₃₈O₈502.60
251111-30-5BeloranibC₂₉H₄₁NO₆499.65
251116-13-95-DemethoxyfumagillolC₁₅H₂₄O₃252.35
25112-68-9Sodium 2-thenoateC₅H₃NaO₂S150.13
25114-58-3Indium acetateC₆H₉InO₆291.95
25114-81-2Hexahydro-1H-azepine-1-carbaldehydeC₇H₁₃NO127.19
25115-74-64-Oxo-1-phenylcyclohexanenitrileC₁₃H₁₃NO199.25
25116-00-1N-(2-Cyanophenyl)acetamideC₉H₈N₂O160.18
25116-35-22-Naphthalen-1-ylmethylene-indan-1,3-dioneC₂₀H₁₂O₂284.31
25116-37-43-IodobenzophenoneC₁₃H₉IO308.12
25116-80-7Piperidine, 1,1'-thiobis-C₁₀H₂₀N₂S200.35
25116-87-42-MesitylenesulfonanilideC₁₅H₁₇NO₂S275.37
25116-90-92',4'-DimethylbenzenesulfonanilideC₁₄H₁₅NO₂S261.35
25117-51-52-((4-Bromophenyl)diazenyl)quinolineC₁₅H₁₀BrN₃312.17
25117-56-02-Bromo-3,3-dimethylbutanamideC₆H₁₂BrNO194.07
25117-57-12-Bromo-3-methylbutanenitrileC₅H₈BrN162.03
25117-74-24-Ethoxybenzoic acid nitrileC₉H₉NO147.18
25117-75-33-EthoxybenzonitrileC₉H₉NO147.18
25118-23-4Ethyl 6-heptenoateC₉H₁₆O₂156.22
25118-59-64-Bromo-3-chlorobenzoic acidC₇H₄BrClO₂235.46
2512-24-5N-(1,1-Dimethylethyl)benzenesulfonamideC₁₀H₁₅NO₂S213.30
2512-27-8RefChem:357204C₁₇H₁₉N₃S297.43
2512-29-0C.I. Pigment Yellow 1C₁₇H₁₆N₄O₄340.34
25121-81-7Thieno(2,3-b)thiophene, 2-bromo-C₆H₃BrS₂219.13
25121-86-2Thieno(2,3-b)thiophene, 2,5-dibromo-C₆H₂Br₂S₂298.02
25121-87-32,5-Dibromothieno(3,2-b)thiopheneC₆H₂Br₂S₂298.02
2512185-71-4(2S)-2-(Methoxymethyl)azetidine hydrochlorideC₅H₁₂ClNO137.61
2512186-08-0N,N-Dimethyl-1-[(3R)-3-piperidyl]methanamine, dihydrochlorideC₈H₂₀Cl₂N₂215.17
2512187-09-41-{2'-Methyl-[1,1'-biphenyl]-2-yl}methanamine hydrochlorideC₁₄H₁₆ClN233.74

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