• Alpha-Chlorocinnamaldehyde
• 18365-42-9
• C9H7ClO
• 242-237-4
• 166.6
• .

• Adenosine 5'-monophosphate monohydrate
• 18422-05-4
• C₁₀H₁₆N₅O₈P
• 200-500-0
• 365.24
• .

• Acetonitrile,2-[(4-chlorophenyl)thio]-
• 18527-19-0
• C8H6 Cl N S
• 183.66
• .

• Acetonitrile,2-[(4-fluorophenyl)thio]-
• 18527-21-4
• C₈H₆FNS
• 167.20
• .

• a-D-Glucofuranose,1,2-O-(1-methylethylidene)-
• 18549-40-1
• C₉H₁₆O₆
• 242-420-9
• 220.22
• .

• antimony(3+) tripropan-2-olate
• 18770-47-3
• C3H8O?1/3Sb
• 242-561-6
• 299.0219
• .

• Acefylline piperazinate
• 18833-13-1
• 2(C₉H₁₀N₄O₄)^.C₄H₁₀N₂
• 242-614-3
• 562.54
• .

• Aluminum,tris[2-(hydroxy-kO)propanoato-kO]-
• 18917-91-4
• C₉H₁₅AlO₉
• 242-670-9
• 294.191538
• .

• Ammonium hexachloropalladate(IV)
• 19168-23-1
• (NH4)2?PdCl6
• 242-854-9
• 355.21
• .

• Acetamide,N-[2-(1-methylethyl)phenyl]-
• 19246-04-9
• C₁₁H₁₅NO
• 177.24
• .

• alpha-Phenylpiperidine-2-acetamide
• 19395-39-2
• C₁₃H₁₈N₂O
• 243-019-1
• 218.29
• .

• Ammonium sebacate
• 19402-63-2
• C₁₀H₂₄N₂O₄
• 236.31
• .

• Acetamide,N-[3-(diethylamino)-4-methoxyphenyl]-
• 19433-93-3
• C₁₃H₂₀N₂O₂
• 243-058-4
• 236.31
• .

• Acetamide,N-[3-[(2-cyanoethyl)ethylamino]-4-methoxyphenyl]-
• 19433-94-4
• C₁₄H₁₉N₃O₂
• 243-060-5
• 261.32
• .

• Androst-4-ene-3,17-dione,6-methylene-
• 19457-55-7
• C₂₀H₂₆O₂
• 0
• .

• Acetic acid,manganese(3+) salt, dihydrate (8CI,9CI)
• 19513-05-4
• C₆H₉MnO₆^.2(H₂O)
• 213-602-5
• 268.1
• .

• Acetyl chloride,2-(phenylmethoxy)-
• 19810-31-2
• C₉H₉ClO₂
• -0
• 184.62
• .

• Acetamide,N-(3,5-dimethyltricyclo[3.3.1.13,7]dec-1-yl)-
• 19982-07-1
• C₁₄H₂₃NO
• 221.34
• .

• Acetic acid,2-[[1-(phenylmethyl)-1H-indazol-3-yl]oxy]-
• 20187-55-7
• C₁₆H₁₄N₂O₃
• 243-569-2
• 282.29396
• .

• Amifostine
• 20537-88-6
• C₅H₁₅N₂O₃PS
• 268.27
• .

• Acetamide,N-[2-(methylsulfonyl)phenyl]-
• 20628-27-7
• C₉H₁₁NO₃S
• 213.25354
• .

• Acetic acid, 2-bromo-,1,1'-(2-butene-1,4-diyl) ester
• 20679-58-7
• C₈H₁₀Br₂O₄
• 243-962-9
• 329.9706
• .

• Aluminum phosphide
• 20859-73-8
• AlP
• 244-088-0
• 57.95
• .

• Acetic acid,2-isothiocyanato-, methyl ester
• 21055-37-8
• C₄H₅NO₂S
• 131.14
• .

• Acetamide,2-chloro-N-[2-(phenylmethyl)phenyl]-
• 21535-43-3
• C₁₅H₁₄ClNO
• 259.73
• .

• Aluminum hydroxide
• 21645-51-2
• Al(OH)₃
• 244-492-7
• 78
• .

• Acetamide,N-[3-[bis(2-cyanoethyl)amino]phenyl]-
• 21678-64-8
• C₁₄H₁₆N₄O
• 244-523-4
• 256.3
• .

• a-D-erythro-Pentofuranosylchloride, 2-deoxy-, 3,5-bis(4-chlorobenzoate)
• 21740-23-8
• C₁₉H₁₅Cl₃O₅
• 429.68
• .

• Acetic acid,2,2,2-trifluoro-, cesium salt (1:1)
• 21907-50-6
• C2CsF3O2
• 245.92
• .

• Acetic acid,2-(4-formylphenoxy)-
• 22042-71-3
• C9H8 O4
• 244-749-3
• 180.16
• .

• Acetyl chloride, bromo-(6CI,7CI,8CI,9CI)
• 22118-09-8
• C2H2 Br Cl O
• 244-790-7
• 157.39
• .

• Acetamide,N-[4-(difluoromethoxy)phenyl]-
• 22236-11-9
• C₉H₉F₂NO₂
• 201.17
• .

• Acetic acid,bismuth(3+) salt (8CI,9CI)
• 22306-37-2
• C₂H₄O₂.1/3Bi
• 244-904-5
• 386.11
• .

• Acetonitrile,2-(4-methoxyphenoxy)-
• 22446-12-4
• C9H9 N O2
• -0
• 163.17
• .

• Acetamide,N-(4-bromo-3-chlorophenyl)-
• 22459-81-0
• C₈H₇BrClNO
• 248.5043
• .

• Aminoacetaldehyde dimethyl acetal
• 22483-09-6
• C4H11NO2
• 245-026-5
• 105.14
• .

• Acetamide,N-[3-[(2-cyanoethyl)(2-hydroxyethyl)amino]-4-methoxyphenyl]-
• 22588-78-9
• C14H19 N3 O3
• 245-110-1
• 277.32
• .

• Anilinoacetaldehyde diethyl acetal
• 22758-34-5
• C12H19NO2
• 209.2848
• .

• Aluminum arsenide(AlAs)
• 22831-42-1
• AlAs
• 245-255-0
• 101.90313
• .

• Aspartame
• 22839-47-0
• C₁₄H₁₈N₂O₅
• 245-261-3
• 294.31
• .

• Acetamide,N-[3-[bis[2-(acetyloxy)ethyl]amino]-4-methoxyphenyl]-
• 23128-51-0
• C17H24 N2 O6
• 245-441-1
• 352.38
• .

• Acetamide,2,2,2-trichloro-N-cyclohexyl-
• 23144-68-5
• C₈H₁₂Cl₃NO
• 244.5451
• .

• Acetic acid,2-[[1-(phenylmethyl)-1H-indazol-3-yl]oxy]-, sodium salt (1:1)
• 23255-99-4
• C16H14 N2 O3 . Na
• 245-528-4
• 304.28
• .

• Acetaldehyde,2-(methylthio)-
• 23328-62-3
• C3H6 O S
• 245-587-6
• 90.145
• .

• Acetic acid,2,2,2-trifluoro-, thallium(3+) salt (3:1)
• 23586-53-0
• C₆F₉O₆Tl
• 245-761-1
• 543.4295
• .

• Acetic acid,2-isothiocyanato-, ethyl ester
• 24066-82-8
• C5H7 N O2 S
• 417-720-1
• 145.18
• .

• Acetamide,N-(4-bromo-2-methylphenyl)-
• 24106-05-6
• C9H10 Br N O
• 228.09
• .

• Anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone,2,9-bis(4-ethoxyphenyl)-
• 24108-89-2
• C₄₀H₂₆N₂O₆
• 246-018-4
• 630.66
• .

• Acetamide,N-[3-[bis(2-methoxyethyl)amino]phenyl]-
• 24294-01-7
• C14H22 N2 O3
• 266.34
• .

• Acetamide,N-[3-[bis(2-methoxyethyl)amino]-4-methoxyphenyl]-
• 24294-03-9
• C15H24 N2 O4
• 296.36
• .