| Pyrazole | C₃H₄N₂ | 68.079 g/mol |
| Pyrazole, 1-(4-methylphenylsulfonyl)-4-nitro- | C₁₀H₉N₃O₄S | 267.266 g/mol |
| Pyrazole-3,5-dicarboxylic acid | C₅H₄N₂O₄ | 156.097 g/mol |
| Pyrazole-4-carboxylic acid | C₄H₄N₂O₂ | 112.088 g/mol |
| Pyrazole-5-carboxylic acid, 1-benzyl-3-methyl- | C₁₂H₁₂N₂O₂ | 216.24 g/mol |
| Pyrazole-5-carboxylic acid, 3-phenyl- | C₁₀H₈N₂O₂ | 188.186 g/mol |
| Pyrazolo(1,5-a)pyridin-4-ol | C₇H₆N₂O | 134.138 g/mol |
| Pyrazolo(1,5-a)pyridin-5-ylmethanol | C₈H₈N₂O | 148.165 g/mol |
| Pyrazolo(1,5-a)pyridine-3-carboxamide, N,N-dimethyl- | C₁₀H₁₁N₃O | 189.218 g/mol |
| Pyrazolo(1,5-a)pyrimidine | C₆H₅N₃ | 119.127 g/mol |
| Pyrazolo(1,5-a)pyrimidine, 5,7-dimethyl- | C₈H₉N₃ | 147.181 g/mol |
| Pyrazolo(1,5-a)pyrimidine-3-carbonitrile | C₇H₄N₄ | 144.137 g/mol |
| Pyrazolo(1,5-a)pyrimidine-6-carbaldehyde | C₇H₅N₃O | 147.137 g/mol |
| Pyrazolo(4,3-e)pyrido(3,2-b)(1,4)diazepin-10(1H)-one, 4,9-dihydro-1,3,9-trimethyl- | C₁₂H₁₃N₅O | 243.27 g/mol |
| Pyrazolo(4,3-e)pyrido(3,2-b)(1,4)diazepin-10(1H)-one, 4,9-dihydro-1,3-dimethyl- | C₁₁H₁₁N₅O | 229.243 g/mol |
| Pyrazolo[1,5-a]pyridin-6-yl trifluoromethanesulfonate | C₈H₅F₃N₂O₃S | 266.2 g/mol |
| Pyrazolo[1,5-a]pyridine-3-carbonyl chloride | C₈H₅ClN₂O | 180.594 g/mol |
| Pyrazolo[1,5-a]pyridine-3-carboxylic acid [2-methyl-5-(3-trifluoromethyl-benzoylamino) phenyl]-amide | C₂₃H₁₇F₃N₄O₂ | 438.409 g/mol |
| Pyrazolo[1,5-a]pyrimidine-3-carboxamide | C₇H₆N₄O | 162.152 g/mol |
| Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid | C₇H₅N₃O₂ | 163.136 g/mol |
| Pyrazolo[3,4-d]pyrimidine 15 | C₃₂H₃₆N₈O₃ | 580.693 g/mol |
| Pyrene-maleimide | C₂₀H₁₁NO₂ | 297.313 g/mol |
| Pyrid-2-ylmethyl 3-chloropropyl sulphide | C₉H₁₂ClNS | 201.722 g/mol |
| Pyrid-4-yl-methyl 3-chloropropyl sulphide | C₉H₁₂ClNS | 201.722 g/mol |
| Pyridaben | C₁₉H₂₅ClN₂OS | 364.942 g/mol |
| Pyridazin-3-ylmethanamine | C₅H₇N₃ | 109.132 g/mol |
| Pyridazine, 3,6-dimethyl-4-nitro-, 1-oxide | C₆H₇N₃O₃ | 169.14 g/mol |
| Pyridazine, 3-phenyl-5-(tributylstannyl)- | C₂₂H₃₄N₂Sn | 445.239 g/mol |
| Pyridazine-3,4-diamine | C₄H₆N₄ | 110.12 g/mol |
| Pyridazine-4-carbaldehyde | C₅H₄N₂O | 108.1 g/mol |
| Pyridazine-4-carboxylic Acid | C₅H₄N₂O₂ | 124.099 g/mol |
| Pyridazinediones-derivative-1 | C₁₁H₆ClN₃O₃ | 263.64 g/mol |
| Pyridin-1-ium-1-ylmethyl octanoate | C₁₄H₂₂NO₂+ | 236.335 g/mol |
| pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methanamine | C₁₁H₁₆N₂O | 192.262 g/mol |
| Pyridin-3-yl(thiophen-2-yl)methanol | C₁₀H₉NOS | 191.255 g/mol |
| Pyridin-3-ylmethyl (4-{[(4-amino-1-phenyl-1H-pyrazol-3-yl)amino]carbonyl}benzyl)carbamate | C₂₄H₂₂N₆O₃ | 442.479 g/mol |
| Pyridin-3-ylmethyl 4-methoxyphenylcarbamate | C₁₄H₁₄N₂O₃ | 258.277 g/mol |
| pyridin-3-ylmethyl {4-[({4-[(tert-butoxycarbonyl)amino]-1-phenyl-1H-pyrazol-3-yl}amino)carbonyl]benzyl}carbamate | C₂₉H₃₀N₆O₅ | 542.596 g/mol |
| Pyridin-3-ylmethyl-hydrazine | C₆H₉N₃ | 123.159 g/mol |
| Pyridin-4-ylmethanethiol | C₆H₇NS | 125.196 g/mol |
| Pyridin-4-ylmethyl carbamimidothioate | C₇H₉N₃S | 167.237 g/mol |
| Pyridine | C₅H₅N | 79.102 g/mol |
| Pyridine (5-methyl-2-nitrophenyl)nitride | C₁₂H₁₁N₃O₂ | 229.239 g/mol |
| Pyridine N-Oxide | C₅H₅NO | 95.101 g/mol |
| Pyridine sulfonamide | C₅H₆N₂O₂S | 158.182 g/mol |
| Pyridine, 1,2,3,6-tetrahydro-4-[4-(trifluoromethyl)phenyl]- | C₁₂H₁₂F₃N | 227.229 g/mol |
| Pyridine, 2,3,5-trichloro- | C₅H₂Cl₃N | 182.437 g/mol |
| Pyridine, 2,3-dimethyl-, 1-oxide | C₇H₉NO | 123.155 g/mol |
| Pyridine, 2,4,6-trichloro- | C₅H₂Cl₃N | 182.437 g/mol |
| Pyridine, 2,6-bis(2,2,2-trifluoroethyl)- | C₉H₇F₆N | 243.15 g/mol |
| Pyridine, 2,6-dichloro-3-(chloromethyl)- | C₆H₄Cl₃N | 196.464 g/mol |
| Pyridine, 2,6-dichloro-4-[1-(trifluoromethyl)ethenyl]- | C₈H₄Cl₂F₃N | 242.027 g/mol |
| Pyridine, 2-(1,3-dioxolan-2-yl)-4-methyl-5-nitro- | C₉H₁₀N₂O₄ | 210.189 g/mol |
| Pyridine, 2-(1-methylhydrazinyl)- | C₆H₉N₃ | 123.159 g/mol |
| Pyridine, 2-(bromomethyl)-5-(2,2,2-trifluoroethoxy)- | C₈H₇BrF₃NO | 270.048 g/mol |
| Pyridine, 2-(chlorodifluoromethyl)-5-(1-chloroethyl)- | C₈H₇Cl₂F₂N | 226.053 g/mol |
| Pyridine, 2-(methylthio)-3-nitro- | C₆H₆N₂O₂S | 170.193 g/mol |
| Pyridine, 2-(trimethylsilyl)- | C₈H₁₃NSi | 151.285 g/mol |
| Pyridine, 2-(trimethylstannyl)- | C₈H₁₃NSn | 241.91 g/mol |
| Pyridine, 2-[(6-methoxy-3-pyridinyl)oxy]-5-(trifluoromethyl)- | C₁₂H₉F₃N₂O₂ | 270.21 g/mol |
| Pyridine, 2-bromo-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]- | C₁₂H₂₀BrNOSi | 302.288 g/mol |
| Pyridine, 2-methoxy-4-(trifluoromethyl)- | C₇H₆F₃NO | 177.125 g/mol |
| Pyridine, 2-methyl-3-(2,2,2-trifluoroethoxy)- | C₈H₈F₃NO | 191.152 g/mol |
| Pyridine, 2-methyl-4-nitro-, 1-oxide | C₆H₆N₂O₃ | 154.125 g/mol |
| Pyridine, 3-(4-aminobutyl)- | C₉H₁₄N₂ | 150.225 g/mol |
| Pyridine, 3-(4-methylhexyl) | C₁₂H₁₉N | 177.291 g/mol |
| Pyridine, 3-(methylthio)- | C₆H₇NS | 125.196 g/mol |
| Pyridine, 3-chloro-2-[1-(trifluoromethyl)ethenyl]- | C₈H₅ClF₃N | 207.582 g/mol |
| Pyridine, 3-ethoxy-2-nitro- | C₇H₈N₂O₃ | 168.152 g/mol |
| Pyridine, 4-(1-methylethenyl) | C₈H₉N | 119.167 g/mol |
| Pyridine, 4-(trimethylstannyl)- | C₈H₁₃NSn | 241.91 g/mol |
| Pyridine, 4-[(1R)-1-azidoethyl]- | C₇H₈N₄ | 148.169 g/mol |
| Pyridine, 4-chloro-3-methoxy-2-methyl-, 1-oxide | C₇H₈ClNO₂ | 173.599 g/mol |
| Pyridine, 4-phenoxy-, 1-oxide | C₁₁H₉NO₂ | 187.198 g/mol |
| Pyridine, 5-(1-chloroethyl)-2-(trifluoromethyl)- | C₈H₇ClF₃N | 209.598 g/mol |
| Pyridine, 5-bromo-2-(methylthio)-3-(trifluoromethyl)- | C₇H₅BrF₃NS | 272.089 g/mol |
| Pyridine, 5-ethenyl-2-methyl-4-(trifluoromethyl)- | C₉H₈F₃N | 187.164 g/mol |
| Pyridine,5-(chloromethyl)-4-(trifluoromethyl)-2-[4-(trifluoromethyl)phenyl]- | C₁₄H₈ClF₆N | 339.666 g/mol |
| Pyridine-2,4,5-triamine | C₅H₈N₄ | 124.147 g/mol |
| Pyridine-2-acetonitrile | C₇H₆N₂ | 118.139 g/mol |
| Pyridine-2-boronic acid, pinacol ester | C₁₁H₁₆BNO₂ | 205.066 g/mol |
| Pyridine-2-carbaldehyde thiosemicarbazone | C₇H₈N₄S | 180.236 g/mol |
| Pyridine-2-carbonitrile | C₆H₄N₂ | 104.112 g/mol |
| Pyridine-2-carbonyl chloride | C₆H₄ClNO | 141.557 g/mol |
| Pyridine-2-carboxylic acid (4-hydroxyphenyl)amide | C₁₂H₁₀N₂O₂ | 214.224 g/mol |
| Pyridine-2-carboxylic acid 1-oxide | C₆H₅NO₃ | 139.11 g/mol |
| Pyridine-2-carboxylic acid 4-hydroxymethyl-benzylamide | C₁₄H₁₄N₂O₂ | 242.278 g/mol |
| Pyridine-2-carboxylic acid [2-(4-amino-phenyl)-3H-imidazo[4,5-c]pyridin-6-yl]-amide | C₁₈H₁₄N₆O | 330.351 g/mol |
| Pyridine-2-carboxylic acid [2-(4-nitro-phenyl)-3H-imidazo[4,5-c]pyridin-6-yl]-amide | C₁₈H₁₂N₆O₃ | 360.333 g/mol |
| Pyridine-2-carboxylic acid [5-cyclopentyl-6-(2,2,2-trifluoro-ethoxy)-pyridin-3-yl]-amide | C₁₈H₁₈F₃N₃O₂ | 365.355 g/mol |
| Pyridine-2-sulfonate | C₅H₄NO₃S- | 158.158 g/mol |
| Pyridine-2-sulfonic acid allyl-(2-methyl-pent-4enyl)-amide | C₁₄H₂₀N₂O₂S | 280.393 g/mol |
| Pyridine-2-sulfonyl Chloride | C₅H₄ClNO₂S | 177.612 g/mol |
| Pyridine-3-sulfinic acid | C₅H₅NO₂S | 143.167 g/mol |
| Pyridine-3-sulfonamide | C₅H₆N₂O₂S | 158.182 g/mol |
| Pyridine-3-sulfonic acid [2-(3'-chloro-2,3,5,6-tetrahydro-[1,2']bipyrazinyl-4-yl)-ethyl]-methyl-amide | C₁₆H₂₁ClN₆O₂S | 396.904 g/mol |
| Pyridine-3-sulfonic acid trans-{4-[4-(3-trifluoromethyl-phenyl)-1H-imidazol-2-yl]-cyclohexylmethyl}-amide | C₂₂H₂₃F₃N₄O₂S | 464.513 g/mol |
| Pyridine-3-sulfonic acid[4-(4-oxo piperidin-1-yl)-phenyl]amide | C₁₆H₁₇N₃O₃S | 331.397 g/mol |
| Pyridine-3-sulfonyl chloride | C₅H₄ClNO₂S | 177.612 g/mol |
| Pyridine-4-carbonyl chloride | C₆H₄ClNO | 141.557 g/mol |
