| 1 | 5224-01-1 | 3-Aminopyrazine-2-carboxylic acid | | | | |
| 2 | 5224-04-4 | 3α-Amino-12β-hydroxy-5α-pregnan-20-one | C21H35NO2 | 333.5081 | | |
| 3 | 5224-05-5 | 5α-Pregnane-11α,20α-diol, 3α-amino- (7CI,8CI) | C21H37NO2 | 335.52 | | |
| 4 | 5224-23-7 | triethyllead | C6H16Pb | 295.39 | -145 °C | |
| 5 | 5224-28-2 | 1-Propanol,3,3'-(phenylimino)bis-, bis(4-methylbenzenesulfonate) (ester) (9CI) | C26H31NO6S2 | 517.66 | | |
| 6 | 5224-54-4 | 5,7-Dihydroxy-6-(3-methyl-2-butenyl)-8-(3-methylbutyryl)-4-phenyl-2H-1-benzopyran-2-one | C25H26O5 | 406.47 | | |
| 7 | 5224-65-7 | Phenol, 4-(2,2-dimethyl-1-methylenepropyl)- | C12H16O | 176.25484 | | |
| 8 | 5224-71-5 | Acetamide, N-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl]-N-methyl-2-(phenylmethoxy)- | C19H18N2O4 | 338.36 | | |
| 9 | 5224-72-6 | Glycine,N-[(benzyloxy)acetyl]-N-(phthalimidoacetyl)-, methyl ester (7CI,8CI) | C22H20N2O7 | 424.4034 | | |
| 10 | 52240-00-3 | 4,5-Dihydro-6-(2-thienyl)-3(2H)-pyridazinone | C8H8N2OS | 180.23 | | |
| 11 | 52240-08-1 | 3-(6-Oxo-1,6-dihydropyridazin-3-yl)benzonitrile | C11H7N3O | 197.19 | | |
| 12 | 52240-10-5 | 4-(6-oxo-1,6-dihydropyridazin-3-yl)benzonitrile | C11H7N3O | 197.19 | | |
| 13 | 52240-11-6 | 6-(4-aminophenyl)-5-methyl-3(2H)-pyridazinone | C11H11N3O | 201.22 | | |
| 14 | 52240-14-9 | 4-(2,5-DICHLOROPHENYL)-4-OXOBUTYRIC ACID | C10H8Cl2O3 | 247.07 | | |
| 15 | 52240-15-0 | 4-(3-aminophenyl)-4-oxobutanoic acid | C10H11NO3 | 193.2 | | |
| 16 | 52240-16-1 | Benzenebutanoic acid, 4-carboxy-γ-oxo- | C11H10O5 | 222.2 | | |
| 17 | 52240-18-3 | CIS-2-(P-CHLOROBENZOYL)-1-CYCLOHEXANECARBOXYLIC ACID, 98 | C14H15ClO3 | 266.72 | 147-151°C | |
| 18 | 52240-19-4 | TRANS-2-(P-CHLOROBENZOYL)-1-CYCLOHEXANECARBOXYLIC ACID, 98 | C14H15ClO3 | 266.72 | 157-161°C | |
| 19 | 52240-20-7 | 3-(P-Chlorobenzoyl)-2-Methylpropionic Acid | C11H11ClO3 | 226.66 | 137-139 °C | |
| 20 | 52240-25-2 | 4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid | C11H11ClO3 | 226.66 | 82-83℃ | |
| 21 | 52240-28-5 | 4-(5-BROMO-2-THIENYL)-4-OXOBUTYRIC ACID | C8H7BrO3S | 263.11 | 136-138°C | |
| 22 | 52240-31-0 | 5,6-dihydro-8-methoxy-Benzo[h]cinnolin-3(2H)-one | C13H12N2O2 | 228.25 | 239-241 °C(Solv: ethanol (64-17-5); water (7732-18-5)) | |
| 23 | 52240-42-3 | 3(2H)-Pyridazinone, 6-[4-(ethylamino)phenyl]-4,5-dihydro-5-methyl- | C13H17N3O | 231.29 | | |
| 24 | 52240-85-4 | Benzenebutanoic acid, 4-amino-γ-oxo-, methyl ester | C11H13NO3 | 207.23 | | |
| 25 | 52241-00-6 | 4-[4-(N,N-DIMETHYLAMINO)PHENYL]-4-OXOBUTYRIC ACID | C12H15NO3 | 221.25 | | |
| 26 | 52241-03-9 | Benzenebutanoic acid, 3-amino-β-methyl-γ-oxo- | C11H13NO3 | 207.23 | | |
| 27 | 52241-06-2 | 3(2H)-Pyridazinone, 6-(4-aminophenyl)-4,5-dihydro-2-methyl- | C11H13N3O | 203.24 | | |
| 28 | 52241-19-7 | Platinum, dibromo(N1,N1-dimethyl-1,2-ethanediamine-κN1,κN2)-, (SP-4-3)- | C4H13Br2N2Pt | 444.05 | | |
| 29 | 52241-26-6 | Platinum(2+), diamminediaqua-, (SP-4-2)-, dinitrate | H6N3O5Pt+ | 323.15 | | |
| 30 | 52241-27-7 | Platinum(II), diaqua(1,2-ethanediammine-N,N)-, (SP-4-2)-, dinitrate | C2H12N4O8Pt | 415.21668 | | |
| 31 | 52242-06-5 | Cobalt tetrakis(pentafluorophenyl)porphyrin | C44H8CoF20N4 | 1031.48 | | |
| 32 | 52243-24-0 | Cyclohexanamine, N-[[(dimethylamino)thioxomethyl]thio]- (9CI) | C9H18N2S2 | 218.38 | | |
| 33 | 52243-33-1 | bis(2-hydroxyethyl)ammonium toluene-p-sulphonate | C7H8O3S.C6H15NO3 | 321.39 | | |
| 34 | 52243-40-0 | Sodium zirconium phosphate | Na2O8P2Zr | 327.146262 | | |
| 35 | 52243-43-3 | caffeine glutamate | | | | |
| 36 | 52243-45-5 | caffeine aspartate | | | | |
| 37 | 52243-87-5 | 1,1'-Dipropyl-[4,4'-bipyridine]-1,1'-diium bromide | C16H22BrN2+ | 322.27 | | |
| 38 | 52244-06-1 | (6,7-DIMETHOXY-1,2,3,4-TETRAHYDRO-ISOQUINOLIN-1-YL)-ACETONITRILE | C13H16N2O2 | 232.28 | 110-114 °C | |
| 39 | 52244-30-1 | Phenol, 2,6-dimethoxy-3-methyl- | C9H12O3 | 168.19 | | |
| 40 | 52244-81-2 | methyl 3-[p-(hexadecyloxy)phenyl]-3-oxopropionate | C26H42O4 | 418.61 | | |
| 41 | 52244-83-4 | Benzenepropanoic acid, β-oxo-4-(tetradecyloxy)-, methyl ester | C24H38O4 | 390.56 | | |
| 42 | 52244-84-5 | Benzoyl chloride, 4-(tetradecyloxy)- | C21H33ClO2 | 352.94 | | |
| 43 | 52244-88-9 | Ethanone, 1-[4-(tetradecyloxy)phenyl]- | C22H36O2 | 332.52 | | |
| 44 | 52245-00-8 | 2-(2,2-DIMETHYL-PROPIONYLOXY)-5-(2-METHYLAMINO-ACETYL)-PHENYL 2,2-DIMETHYL-PROPIONATE | C19H27NO5 | 349.42 | | |
| 45 | 52245-01-9 | 5-CHLORO-4-(1,3-DIOXO-1,3-DIHYDRO-ISOINDOL-2-YL)-2-METHOXY-BENZOIC ACID | C16H10ClNO5 | 331.71 | | |
| 46 | 52245-33-7 | Cyanamide, N-ethyl-N-(phenylmethyl)- | C10H12N2 | 160.22 | | |
| 47 | 52245-99-5 | 4-(4-HYDROXY-3,5-DIMETHYL-PHENYL)-4-OXO-BUTYRIC ACID | C12H14O4 | 222.24 | | |
| 48 | 52246-40-9 | Fenquizone monopotassium salt | C14H11ClKN3O3S | 375.87174 | | |
| 49 | 52246-50-1 | monobutyryl cyclic GMP | C14H18N5O8P | 415.3 | | |
| 50 | 52246-55-6 | Benzoic acid, 2-[[4-chloro-6-[[3-[[8-[[4-chloro-6-(methylphenylamino)-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-5-sulfo-, tetrasodium salt | C36H22Cl2N12Na4O15S4 | 1153.75636 | | |
| 51 | 52247-01-5 | Benzene, 1,1'-(1,3-propanediyl)bis[3,4-dimethoxy- | C19H24O4 | 316.39 | | |
| 52 | 52247-47-9 | N-[1-[(benzylamino)carbonyl]-2-(1,3-diphenyl-1H-pyrazol-4-yl)vinyl]benzamide | C32H26N4O2 | 498.57 | | |
| 53 | 52247-59-3 | 1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and hexanedioic acid | C33H48O17 | 716.72402 | | |
| 54 | 52247-77-5 | (S)-(+)-2-Amino-2-phenylbutyric acid | C10H13NO2 | 179.22 | | |
| 55 | 52247-79-7 | (5R,6S)-5,6-Dihydro-5-hydroxy-4-methoxy-6-[(E)-2-phenylethenyl]-2H-pyran-2-one | C14H14O4 | 246.26 | | |
| 56 | 52247-80-0 | (5S,6S)-5,6-Dihydro-5-hydroxy-4-methoxy-6-[(E)-2-phenylethenyl]-2H-pyran-2-one | C14H14O4 | 246.26 | | |
| 57 | 52247-81-1 | dihydrokawain-5-ol | C14H16O4 | 248.27 | 89.5-90 °C(Solv: ethyl ether (60-29-7)) | |
| 58 | 52247-86-6 | Cicloxolone | C38H56O7 | 624.85 | | |
| 59 | 52248-03-0 | S-(5′-Adenosyl)-L-methionine p-toluenesulfonate salt | C15H23N6O5S · C7H7O3S | 570.64 | | |
| 60 | 52248-05-2 | D-Myo-inositol, o-2,6-diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4)-o-(beta-D-ribofuranosyl-(1-5))-1,3-diamino-1,3-dideoxy- | C17H34N4O11 | 470.47206 | | |
| 61 | 52248-38-1 | [2S-(2alpha,4alpha,5alpha,6beta)]-3,3-dimethyl-7-oxo-6-(phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide | C16H18N2O5S | 350.39 | | |
| 62 | 52248-74-5 | Pyridine, 2-(1-propenyl)-, (E)- | C8H9N | 119.16376 | | |
| 63 | 52248-76-7 | Pyridine, 3-(1E)-1-propen-1-yl- | C8H9N | 119.16 | | |
| 64 | 52249-32-8 | 5-Methyl-5H-dibenz[b,f]azepine | C15H13N | 207.27 | | |
| 65 | 52249-48-6 | 2-Quinolineacetic acid methyl ester | C12H11NO2 | 201 | | |
| 66 | 52249-80-6 | Benzaldehyde, 2,4-dihydroxy-3,6-dimethoxy- | C9H10O5 | 198.17 | | |
| 67 | 52249-82-8 | Benzaldehyde, 2,3,6-trimethoxy-4-(phenylmethoxy)- | C17H18O5 | 302.32 | | |
| 68 | 52249-84-0 | Benzaldehyde, 3,6-dimethoxy-2,4-bis(phenylmethoxy)- | C23H22O5 | 378.42 | | |
| 69 | 52249-85-1 | 1-[4-(BENZYLOXY)-2-HYDROXY-3-METHOXYPHENYL]ETHAN-1-ONE | C16H16O4 | 272.3 | 146°C | |
| 70 | 52249-86-2 | 1-[2-(BENZYLOXY)-4-METHOXYPHENYL]ETHAN-1-ONE | C16H16O3 | 256.3 | | |
| 71 | 52249-87-3 | 1-[6-Hydroxy-2,4-dimethoxy-3-(phenylmethoxy)phenyl]ethanone | C17H18O5 | 302.32 | | |
| 72 | 52249-88-4 | 1-[2-Hydroxy-4-methoxy-5-(phenylmethoxy)phenyl]ethanone | C16H16O4 | 272.3 | | |