• 4,8-Methanobenzofuro[2,3-a]pyrido[4,3-b]carbazole-1,8a(9H)-diol,7-(cyclopropylmethyl)-5,6,7,8,14,14b-hexahydro-, hydrochloride (1:1),(4bS,8R,8aS,14bR)-
• 111469-81-9
• C26H26 N2 O3 . Cl H
• 450.96
• .

• 4(3H)-Quinazolinone,6-(acetyloxy)-7-methoxy-
• 179688-53-0
• C₁₁H₁₀N₂O₄
• 234.21
• .

• 4-Pyridinecarboxylicacid, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-
• 179024-65-8
• C11H14 N2 O4
• 238.24
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-8-iodo-
• 101713-87-5
• C₉H₇IO₂
• 274.05515
• .

• 4H-Thieno[2,3-b]thiopyran-4-one,5,6-dihydro-6-methyl-
• 120279-85-8
• C₈H₈OS₂
• 184.28
• .

• Butanenitrile, 4-chloro-3-hydroxy-
• 105-33-9
• C₄H₆ClNO
• 203-287-2
• 119.55
• .

• 4-Pyridinemethanesulfonylchloride
• 130820-88-1
• C₆H₆ClNO₂S
• 191.64
• .

• 4-Isoxazolecarboxylicacid, 3-(4-fluorophenyl)-5-methyl-
• 1736-21-6
• C₁₁H₈FNO₃
• 221.18
• .

• 4-Morpholinecarboxylicacid, 2-oxo-5-phenyl-, phenylmethyl ester, (5R)-
• 121269-46-3
• C18H17 N O4
• 311.33
• .

• 4-Thiazolecarboxylicacid, 2-(2,3-dihydro-1,4-benzodioxin-2-yl)-
• 175203-34-6
• C12H9 N O4 S
• 263.26916
• .

• 4-Pyrimidinecarboxaldehyde,2-(methylthio)-
• 1074-68-6
• C₆H₆N₂OS
• 154.19
• .

• 4-Pyrimidinecarboxylicacid, 2-chloro-
• 149849-92-3
• C₅H₃ClN₂O₂
• 238.23
• .

• 4-Thiazolemethanol,2-(2-methoxyphenyl)-
• 187793-07-3
• C₁₁H₁₁NO₂S
• 221.28
• .

• 4-Thiazolecarboxylicacid, 2-(3-methoxyphenyl)-, ethyl ester
• 115299-08-6
• C₁₃H₁₃NO₃S
• 263.31
• .

• 4-Penten-1-ol,4,5,5-trifluoro-
• 109993-33-1
• C₅H₇F₃O
• 140.1
• .

• 4-BENZYLOXYBENZALDEHYDE POLYSTYRENE HL
• 151896-98-9
• C14H12O2
• -0
• 212.24388
• .

• 4-Thiazolepropanoicacid, a-amino-, dihydrochloride, (S)-(9CI)
• 136010-41-8
• C6H8 N2 O2 S . 2 Cl H
• 172.20
• .

• 4-Pentenoic acid,4,5,5-trifluoro-
• 110003-22-0
• C₅H₅F₃O₂
• 154.09
• .

• 4-Piperidinone,1-(3-fluorophenyl)-
• 158553-31-2
• C₁₁H₁₂FNO
• 193.22
• .

• 4H-1-Benzopyran-4-one,3-bromo-6-methyl-
• 102653-68-9
• C10H7 Br O2
• 239.07
• .

• 4-Piperidinone,1-(4-chlorophenyl)-
• 113759-96-9
• C₁₁H₁₂ClNO
• 209.67
• .

• 4H-Carbazol-4-one,1,2,3,4a,9,9a-hexahydro-9-methyl-, trans- (9CI)
• 117290-74-1
• C₁₃H₁₅NO
• 201.26
• .

• 4-Morpholinecarboxylicacid, 2-(hydroxymethyl)-, phenylmethyl ester
• 135782-20-6
• C13H17 N O4
• 251.28
• .

• 4-Pyrimidinamine,N-ethyl-1,6-dihydro-1,2-dimethyl-6-(methylimino)-N-phenyl-
• 133060-80-7
• C15H20 N4
• 292.81
• .

• 4-Pyridinecarbonitrile,3-bromo-
• 13958-98-0
• C₆H₃BrN₂
• 183.00
• .

• 4-Thiazolecarboxylicacid, 2-amino-, hydrobromide (1:1)
• 112539-08-9
• C4H4 N2 O2 S . Br H
• 225.06
• .

• 4H-Cyclopenta-1,3-dioxol-4-one,3a,6a-dihydro-2,2-dimethyl-, (3aR,6aR)-
• 115509-13-2
• C8H10 O3
• 154.16
• .

• 4H-4a,7-Methanooxazirino[3,2-i][2,1]benzisothiazole,8,8-dichlorotetrahydro-9,9-dimethyl-, 3,3-dioxide, (2R,4aS,7S,8aR)-
• 127184-05-8
• C₁₀H₁₃Cl₂NO₃S
• 298.19
• .

• 4-Pentynoic acid,2-amino-, methyl ester, hydrochloride, (2S)- (9CI)
• 166271-28-9
• C6H9 N O2 . Cl H
• 163.6
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-6-iodo-
• 101714-35-6
• C9H7 I O2
• 274.06
• .

• 4-Pyrimidinecarboxylicacid, 1,4,5,6-tetrahydro-5-hydroxy-2-methyl-, (4S,5S)-
• 165542-15-4
• C₆H₁₀N₂O₃
• 158.16
• .

• 4(3H)-Quinazolinone,7-methoxy-
• 16064-24-7
• C₉H₈N₂O₂
• 176.17202
• .

• 4-Pyridinemethanol,3-amino-
• 152398-05-5
• C₆H₈N₂O
• 124.14
• .

• 4-Oxazolecarboxylicacid, 5-(4-bromophenyl)-, ethyl ester
• 127919-32-8
• C₁₂H₁₀BrNO₃
• 296.12
• .

• 4,5-Pyrimidinediamine,2-methoxy-
• 104900-51-8
• C₅H₈N₄O
• 140.14322
• .

• 4(3H)-Quinazolinone,6-methoxy-
• 19181-64-7
• C₉H₈N₂O₂
• 242-961-0
• 176.17
• .

• 4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine,8-chloro-6-(phenyl-d5)- (9CI)
• 170082-16-3
• C16H6 Cl D5 N4
• 299.77
• .

• 4-Pyridinol,3,5-dibromo-, ion(1-)
• 141375-47-5
• C₅H₃Br₂NO
• 安全数据
• 252.89
• .

• 4,5:4',5'-DIBENZO-1,1'-DIBUTYL-3,3,3',3'-TETRAMETHYLINDADICARBOCYANINE HEXAFLUOROPHOSPHATE
• 137147-59-2
• C₄₁H₅₅F₆N₂P
• 720.85
• .

• 4-Piperidinamine,N,N-diethyl-
• 143300-64-5
• C₉H₂₀N₂
• 156.2685
• .

• 4-Piperidinepropanoicacid, 1-[(9H-fluoren-9-ylmethoxy)carbonyl]-
• 154938-68-8
• C23H25 N O4
• 379.45
• .

• 4-Quinolinecarboxylicacid, 3-methyl-
• 1873-51-4
• C₁₁H₉NO₂
• 187.1947
• .

• 4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine-1-methanol,8-chloro-6-(phenyl-d5)- (9CI)
• 136765-24-7
• C17H8 Cl D5 N4 O
• 329.8
• .

• 4-Thiazolecarboxylicacid, 5-bromo-
• 103878-58-6
• C₄H₂BrNO₂S
• 208.0332
• .

• 4-Thiazolecarboxylicacid, 2-(4-fluorophenyl)-, ethyl ester
• 132089-35-1
• C12H10 F N O2 S
• 251.28
• .

• 4-Hexenoic acid,2-cyano-5-methyl-2-(3-methyl-2-buten-1-yl)-
• 189640-37-7
• C₁₃H₁₉NO₂
• 221.2955
• .

• 4-Piperidinone,3-bromo-, hydrobromide (1:1)
• 118652-88-3
• C₅H₈BrNO^.HBr
• 258.94
• .

• 4-Piperidinone,2-phenyl-
• 193201-69-3
• C11H13 N O
• 175.23
• .

• 4-Thiomorpholineaceticacid, 1,1-dioxide
• 155480-08-3
• C₆H₁₁NO₄S
• 193.2208
• .

• 4H-1,4-Benzodiazepine-4-carboxylicacid, 1,2,3,5-tetrahydro-, 1,1-dimethylethyl ester
• 195983-63-2
• C₁₄H₂₀N₂O₂
• 248.32
• .