• 4(3H)-Pyrimidinone,5-hydroxy-
• 15837-41-9
• C4H4 N2 O2
• 112.09
• .

• 4-Pyridinamine,2-ethenyl-
• 102000-57-7
• C7H8 N2
• 0
• .

• 4-Benzothiazolol,2-methyl-
• 94977-59-0
• C8H7 N O S
• 165.21228
• .

• 4-Pyridinecarbonylchloride, 2,6-dichloro-
• 42521-08-4
• C6H2 Cl3 N O
• 210.44
• .

• 4-Thiazolecarboxylicacid, 5-bromo-, ethyl ester
• 61830-23-7
• C₆H₆BrNO₂S
• 236.09
• .

• 4-Piperidinecarboxylicacid, 1-(4-pyridinylmethyl)-
• 774531-43-0
• C12H16 N2 O2
• 220.27
• .

• 4(3H)-Quinazolinone,5-fluoro-
• 436-72-6
• C8H5 F N2 O
• 164.14
• .

• 4-Quinolinol,2,6-bis(trifluoromethyl)-
• 35877-04-4
• C₁₁H₅F₆NO
• 281.15
• .

• 4-Quinolinecarboxylicacid, 2-hydroxy-
• 84906-81-0
• C10H7 N O3
• 189.17
• .

• 4-Quinolinecarboxylicacid, 2-chloro-3-hydroxy-
• 847547-91-5
• C10H6 Cl N O3
• 0
• .

• 4-Quinolinol,5,7-dichloro-2-(trifluoromethyl)-
• 59108-13-3
• C₁₀H₄Cl₂F₃NO
• 282.05
• .

• 4-Quinolinol,6-(trifluoromethoxy)-2-(trifluoromethyl)-
• 125647-79-2
• C₁₁H₅F₆NO₂
• 297.16
• .

• 4-Quinolinol, 8-fluoro-
• 63010-71-9
• C9H6 F N O
• 163.15
• .

• 4-(1H-Imidazol-4-yl)aniline
• 38980-93-7
• C₉H₇N₃O₂
• 189.17078
• .

• 4-Pyrimidinol,2-methyl-
• 67383-35-1
• C₅H₆N₂O
• 110.11
• .

• 4-Pyrimidinamine,5-bromo-2-chloro-
• 205672-25-9
• C₄H₃BrClN₃
• 208.44
• .

• 4-(4-Nitrophenoxy)pyridine
• 4783-83-9
• C₁₁H₈N₂O₃
• 216.19
• .

• 4-Quinolinol,6-bromo-2-(trifluoromethyl)-
• 1701-22-0
• C10H5 Br F3 N O
• 292.05
• .

• 4(1H)-Cinnolinone,6-bromo-
• 552330-87-7
• C₈H₅BrN₂O
• 0
• .

• 4-Thiazolecarboxylicacid, 5-bromo-2-phenyl-, ethyl ester
• 914347-21-0
• C₁₂H₁₀BrNO₂S
• 312.18
• .

• 4-Thiazolecarboxylicacid, 2-(4-fluorophenyl)-
• 863668-07-9
• C₁₀H₆FNO₂S
• 223.22
• .

• 4-Piperidinol,1-(5-bromo-2-pyrimidinyl)-
• 887425-47-0
• C₉H₁₂BrN₃O
• 258.12
• .

• 4-Amino-1H-imidazole-2-carboxylic acid
• 155815-92-2
• C₄H₅N₃O₂
• 127.10
• .

• 4-Thiazolecarboxaldehyde,2-(2,4-dichlorophenyl)-
• 150162-48-4
• C₁₀H₅Cl₂NOS
• 258.12
• .

• 4(3H)-Pyrimidinone,6-ethyl-2-methyl-
• 52421-75-7
• C₇H₁₀N₂O
• 138.17
• .

• 4-Piperidinecarboxylicacid, 1-[2-(hydroxymethyl)phenyl]-, ethyl ester
• 773870-63-6
• C15H21 N O3
• 263.33
• .

• 4H-Pyrano[4,3-d]thiazol-2-amine,6,7-dihydro-
• 259810-12-3
• C₆H₈N₂OS
• 156.20552
• .

• 4-Oxazolecarboxylicacid, 2-chloro-, ethyl ester
• 460081-18-9
• C6H6 Cl N O3
• 安全数据
• 175.57
• .

• 4(1H)-Quinolinone,2-[[3-[[[4-bromo-5-(1-fluoroethenyl)-3-methyl-2-thienyl]methyl]amino]propyl]amino]-
• 757942-43-1
• C20H21 Br F N3 O S
• 450.37
• .

• 4-Piperidinecarboxamide,1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-(ethylamino)-
• 686344-29-6
• C₂₅H₂₅Cl₂N₇O
• 0
• .

• 4-Quinolinecarboxylic acid, 3-amino-2-methyl-
• 71881-80-6
• C₁₁H₁₀N₂O₂
• 202.21
• .

• 4(1H)-Pyridinone, 2-methyl-3-(phenylmethoxy)-
• 61160-18-7
• C₁₃H₁₃NO₂
• 215.25
• .

• 4-Ethyl-2-pentafluro ethyl pyrimidine-5-carboxylic acid
• 914201-15-3
• C9H7F5N2O2
• 0
• .

• 4-Thiazolecarboxylicacid, 5-bromo-, methyl ester
• 913836-22-3
• C5H4 Br N O2 S
• 222.0616
• .

• 4-Quinazolinamine,N-(5-chloro-1,3-benzodioxol-4-yl)-7-[2-(4-methyl-1-piperazinyl)ethoxy]-5-[(tetrahydro-2H-pyran-4-yl)oxy]-
• 379231-04-6
• C₂₇H₃₂ClN₅O₅
• 542.03
• .

• 4-Pyridinecarboxylicacid, 2-nitro-
• 33225-74-0
• C₆H₄N₂O₄
• 168.11
• .

• 4(3H)-Pyrimidinone,2-(ethylthio)-5-methyl-
• 13480-95-0
• C₇H₁₀N₂OS
• 170.23
• .

• 4-Thiazolecarboxaldehyde,2-(4-methoxyphenyl)-
• 174006-71-4
• C₁₁H₉NO₂S
• 219.26
• .

• 4-Piperidinecarboxylicacid, 1-[4-(trifluoromethyl)phenyl]-
• 607354-69-8
• C13H14 F3 N O2
• 273.25
• .

• 4-Thiazolemethanol,2-amino-
• 51307-43-8
• C₄H₆N₂OS
• 130.17
• .

• 4-Pyridinecarboxylicacid, 1,2-dihydro-1-methyl-2-oxo-
• 33972-97-3
• C7H7 N O3
• 181.18854
• .

• 4-Pyridinecarboxylicacid, 1,2-dihydro-1-methyl-2-oxo-, methyl ester
• 20845-23-2
• C8H9 N O3
• 167.16196
• .

• 4(3H)-Pyrimidinone,2-(methylthio)-5-propyl-
• 60902-60-5
• C8H12 N2 O S
• 0
• .

• 4-Thiazolecarboxylicacid, 2-chloro-, ethyl ester
• 41731-52-6
• C6H6 Cl N O2 S
• 191.637
• .

• 4(3H)-Pyrimidinone,2-(ethylthio)-5-methoxy-
• 49547-20-8
• C₇H₁₀N₂O₂S
• 0
• .

• 4(1H)-Pyrimidinone,6-hydroxy-5-phenyl-
• 18337-64-9
• C10H8 N2 O2
• 0
• .

• 4-Piperidineacetic acid
• 51052-78-9
• C₇H₁₃NO₂
• 179.64
• .

• 4-Pyrimidinamine,2-chloro-5-methyl-
• 14394-70-8
• C₅H₆ClN₃
• 143.57
• .

• 4(3H)-Pyrimidinone,2-ethoxy-
• 25957-58-8
• C6H8 N2 O2
• 140.13992
• .

• 4(3H)-Pyrimidinone,2-(methylthio)-5-(phenylmethyl)-
• 73717-80-3
• C12H12 N2 O S
• 0
• .