• Androst-4-en-3-one,17-hydroxy-, (17a)-
• 481-30-1
• C₁₉H₂₈O₂
• 288.43
• .

• Anthracene,9-[(1E)-2-phenylethenyl]-
• 42196-97-4
• C22H16
• 255-705-8
• 280.36244
• .

• Arsinic acid,As,As-diphenyl-
• 4656-80-8
• C12H11 As O2
• 294.13
• .

• Acetamide,2,2,2-trifluoro-N-phenyl-
• 404-24-0
• C8H6 F3 N O
• 206-965-6
• 189.13
• .

• a-L-Lyxofuranose
• 40461-89-0
• C5H10 O5
• 150.1299
• .

• alpha-D-Glucose
• 492-62-6
• C₆H₁₂O₆
• 207-757-8
• 180.16 .
• .

• Acetamide,N-[5-(acetyloxy)-1-naphthalenyl]-
• 46874-41-3
• C14H13 N O3
• 256-285-9
• 243.25792
• .

• Acetic acid,[(1R,4aS,4bR,7S,8aR,10aS)-dodecahydro-7-hydroxy-1,4b,8,8-tetramethyl-10-oxo-2(1H)-phenanthrenylidene]-,2-(dimethylamino)ethyl ester, (2E)-
• 468-76-8
• C24H39 N O4
• 0
• .

• Colchiceine
• 477-27-0
• C21H23 N O6
• 207-512-5
• 385.45
• .

• Acetamide,N-2-phenanthrenyl-
• 4120-77-8
• C16H13 N O
• 235.30
• .

• Acetic acid,2-phenoxy-, hydrazide
• 4664-55-5
• C₈H₁₀N₂O₂
• 166.1772
• .

• Adenosine5'-(trihydrogen diphosphate),P'-[(4-formyl-5-hydroxy-6-methyl-3-pyridinyl)methyl] ester
• 4500-99-6
• C18H22 N6 O12 P2
• 0
• .

• antimony; N,N-dibutyl-N,N-bis[4-(dibutylamino)phenyl]benzene-1,4-diamine; hexafluoride
• 41494-35-3
• C₄₂H₆₆F₆N₄Sb-₆
• 255-406-2
• 862.7506592
• .

• Angiotensin I, 5-L-isoleucine-
• 484-42-4
• C₆₂H₈₉N₁₇O₁₄
• 1296.4756
• .

• Ajmalan-17,21-diol,17-(2-chloroacetate), (17R,21a)-
• 47562-08-3
• C22H27 Cl N2 O3
• 256-322-9
• 0
• .

• Adenosine,N-(phenylmethyl)-
• 4294-16-0
• C₁₇H₁₉N₅O₄
• 224-298-9
• 357.3639
• .

• Acetamide, 2-cyano-2-nitro-
• 475-08-1
• C3H3 N3 O3
• 129.08
• .

• Acetaldehyde,2-(2-phenylethoxy)-
• 41847-88-5
• C10H12 O2
• 255-565-8
• 164.2011
• .

• Acetic acid,2-(2,4,5-trichlorophenoxy)-, 2-methylpropyl ester
• 4938-72-1
• C12H13 Cl3 O3
• 225-580-4
• 311.5888
• .

• Arsinous chloride,As,As-bis(2-chloroethenyl)-
• 40334-69-8
• C4H4 As Cl3
• 233.35
• .

• Acetic acid,2-chlorophenyl ester
• 4525-75-1
• C₈H₇ClO₂
• 170.593
• .

• Acetic acid, ammoniumcopper(1+) salt (2:1:1)
• 43043-77-2
• C2H4 O2 . 1/2 Cu . 1/2 H3 N
• 256-060-5
• 199.6725
• .

• Androstane, (5a)-
• 438-22-2
• C19H32
• 207-116-2
• 260.46
• .

• a-D-xylo-Pentodialdo-1,4-furanose,3-O-methyl-1,2-O-(1-methylethylidene)-
• 43138-66-5
• C9H14 O5
• 256-114-8
• 202.20446
• .

• Allantoin N-acetyl-DL-methionine
• 4207-40-3
• C₉H₁₇N₅O₅S
• 224-126-2
• 349.36346
• .

• Acetamide,N-(4-ethoxy-2-hydroxyphenyl)-
• 4665-04-7
• C10H13 N O3
• 225-110-8
• 0
• .

• Anthracene, 1-chloro-
• 4985-70-0
• C14H9 Cl
• 225-641-5
• 212.67
• .

• Acetic acid,2-[[5-(4-chlorophenyl)-1,3,4-oxadiazol-2-yl]thio]-
• 49809-28-1
• C10H7 Cl N2 O3 S
• 0
• .

• Adenosine5'-(trihydrogen diphosphate), P'®5'-ester with 3-(aminothioxomethyl)-1-b-D-ribofuranosylpyridinium, inner salt
• 4090-29-3
• C21H27 N7 O13 P2 S
• 223-828-6
• 679.4907
• .

• a11-24-Corticotropin
• 4237-93-8
• C77H134 N24 O16
• 1652.0391
• .

• Acenaphthylene,1,2-dihydro-5,6-dinitro-
• 4406-87-5
• C12H8 N2 O4
• 0
• .

• Acetic acid,2-[[2-oxo-2-(1-piperidinyl)ethyl]thio]-
• 436087-13-7
• C9H15 N O3 S
• 217.29
• .

• Acetamide,2-hydroxy-N-methyl-N-phenyl-
• 42404-09-1
• C9H11 N O2
• 255-804-6
• 165.19
• .

• Acetic acid,2,2,2-trifluoro-, trimethylsilyl ester
• 400-53-3
• C₅H₉F₃O₂Si
• 206-923-7
• 186.2
• .

• Androst-1-en-3-one,17-(acetyloxy)-1-methyl-, (5a,17b)-
• 434-05-9
• C₂₂H₃₂O₃
• 207-097-0
• 344.54
• .

• Adenosine, 8-chloro-,cyclic 3',5'-(hydrogen phosphate)
• 41941-56-4
• C₁₀H₁₁ClN₅O₆P
• 363.651001
• .

• Acetamide,N-[2-[2-(2-bromo-4,6-dinitrophenyl)diazenyl]-4-methoxy-5-[(phenylmethyl)-2-propen-1-ylamino]phenyl]-
• 42852-92-6
• C25H23 Br N6 O6
• 255-968-9
• 583.39072
• .

• Arsine,(1,1-dimethylethyl)-
• 4262-43-5
• C4H11 As
• 423-320-6
• 134.05174
• .

• Acetamide,N-[4-(hexyloxy)phenyl]-
• 41240-77-1
• C14H21 N O2
• 255-276-7
• 235.32204
• .

• Acetaldehyde,2-[(3,7-dimethyloctyl)oxy]-
• 41767-05-9
• C12H24 O2
• 255-542-2
• 200.31776
• .

• Androstane-3,17-diol,dipropanoate, (3a,5a,17b)- (9CI)
• 4350-14-5
• C25H40 O4
• 0
• .

• Acetamide,2,2-dichloro-N-ethyl-
• 42275-79-6
• C4H7 Cl2 N O
• 255-746-1
• 156.01048
• .

• Urea,N-(2-chloroethyl)-N'-[2-(2-pyridinyl)ethyl]-
• 42471-42-1
• C₁₀H₁₄ClN₃O
• 227.69066
• .

• Uridine-2'-13C,5-methyl- (9CI)
• 478510-98-4
• C10H14 N2 O6
• 259.24
• .

• Uridine-1'-13C,2'-deoxy- (9CI)
• 478510-85-9
• C9H12 N2 O5
• 229.21
• .

• Uridine-5'-13C,2'-deoxy- (9CI)
• 478510-91-7
• C9H12 N2 O5
• 229.21
• .

• Uridine-5',5'-C-d2,2'-deoxy- (9CI)
• 478511-30-7
• C9H10 D2 N2 O5
• 230.21
• .

• Undecanoicacid, 3-hydroxy-
• 40165-88-6
• C₁₁H₂₂O₃
• 202.29
• .

• Uridine-3'-13C (9CI)
• 478511-14-7
• C9H12 N2 O6
• 245.21
• .

• Uridine 5'-(trihydrogendiphosphate), P'-(a-D-glucopyranosyl-1-13C) ester, disodium salt (9CI)
• 478529-38-3
• C15H24 N2 O17 P2 . 2 Na
• 611.27
• .