| 1 | 5198-04-9 | 4-ISOBUTOXY-PHENYLAMINE | C10H15NO | 165.23 | | |
| 2 | 5198-05-0 | AKOS BBB/086 | C11H17NO | 179.26 | | |
| 3 | 5198-46-9 | 3-(4-Methylphenyl)-1,3-oxazolidin-2-one | C10H11NO2 | 177.2 | 91 °C | |
| 4 | 5198-63-0 | 5-phenylfuran-3(2H)-one | C10H8O2 | 160.16932 | | |
| 5 | 5198-68-5 | 6-Phenyl-2H-pyran-4(3H)-one | C11H10O2 | 174.1959 | | |
| 6 | 5198-76-5 | 2-Chloro-4-(chloromethyl)thiazole | C4H3Cl2NS | 168.04 | | |
| 7 | 5198-77-6 | 2-Bromo-4-(chloromethyl)thiazole | C4H3BrClNS | 212.5 | | |
| 8 | 5198-79-8 | 2-Chloro-4-formylthiazole | C4H2ClNOS | 147.58 | | |
| 9 | 5198-80-1 | 2-Bromo-4-fomylthiazole | C4H2BrNOS | 192.03 | 132-135 | |
| 10 | 5198-85-6 | 2-Chloro-4-(hydroxymethyl)thiazole | C4H4ClNOS | 149.6 | | |
| 11 | 5198-86-7 | 2-BROMO-4-HYDROXYMETHYLTHIAZOLE | C4H4BrNOS | 194.05 | | |
| 12 | 5198-87-8 | 2-Chloro-1,3-thiazole-4-carboxylic acid | C4H2ClNO2S | 163.58 | 220 °C | |
| 13 | 5198-88-9 | 2-Bromo-4-thiazolecarboxylic acid | C4H2BrNO2S | 208.03 | 212-214 | |
| 14 | 51980-04-2 | 4-Pentenenitrile, 3-methyl- | C6H9N | 95.14 | | |
| 15 | 51980-05-3 | 3-(4-CYANOPHENYL)-1-PROPENE | C10H9N | 143.19 | | |
| 16 | 51980-13-3 | Ergoline-8-acetonitrile, 2-bromo-6-methyl-, (8β)- (9CI) | C17H18BrN3 | 344.25 | | |
| 17 | 51980-16-6 | vasopressin, 1-deamino-4-Val-8-Arg- | C46H65N13O11S2 | 1040.22 | | |
| 18 | 51980-18-8 | N-Ethylethenesulfonamide | C4H9NO2S | 135.18 | | |
| 19 | 51980-33-7 | Butanedioic acid, 2-(2-methoxy-2-oxoethoxy)-, 1,4-dimethyl ester | C9H14O7 | 234.2 | | |
| 20 | 51980-40-6 | 1,2-Ethanediamine,N-[(trimethoxysilyl)methyl]- | C6H18N2O3Si | 194.3 | | |
| 21 | 51980-53-1 | 5-Chloroacetamido-2-methylene-1,3,3-trimethylindoline | C14H17ClN2O | 264.75 | | |
| 22 | 51980-54-2 | 4-(1-Pyrrolidinyl)-benzaldehyde | C11H13NO | 175.23 | 85 °C | |
| 23 | 51980-59-7 | 3-methoxypropanesulphonic acid | C4H10O4S | 154.1848 | | |
| 24 | 51980-60-0 | 4-(2-METHOXY-ETHOXY)-PHENOL | C9H12O3 | 168.19 | | |
| 25 | 51980-71-3 | disodium 4,4'-bis[[2-(hydroxyimino)-1-phenylethylidene]hydrazino]stilbene-2,2'-disulphonate | C30H24N6Na2O8S2 | 706.6565 | | |
| 26 | 51981-21-6 | GLDA-4Na | C9H14NNaO8 | 287.2 | | 650g/L at 21℃ |
| 27 | 51981-26-1 | 2-Propanamine,N,N'-dithiobis[N-(1-methylethyl)- | C12H28N2S2 | 264.49412 | | |
| 28 | 51981-33-0 | 5-chloro-2-methyl-3-(3-sulphonatopropyl)benzoxazolium | C11H12ClNO4S | 289.74 | | |
| 29 | 51981-34-1 | 2-methyl-5-phenyl-3-(3-sulphonatobutyl)benzoxazolium | C18H19NO4S | 345.41276 | | |
| 30 | 51981-66-9 | N-(5-oxo-5,6,7,8-tetrahydronaphthalen-2-yl)benzaMide | C17H15NO2 | 265.3065 | | |
| 31 | 51981-73-8 | 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, titanium salt (1:) | C6H8O7Ti | 239.99 | | |
| 32 | 51981-75-0 | bromobenzene 3,4-oxide | C6H5BrO | 173.01 | | |
| 33 | 51981-89-6 | 2-Propenoic acid, 2-methyl-, butyl ester, polymer with butyl 2-propenoate, methyl 2-methyl-2-propenoate and 2-propenoic acid | C23H38O8 | 442.55 | | |
| 34 | 51982-33-3 | 1H-1,2,3-Triazole-4,5-dicarbonyldichloride(9CI) | C4HCl2N3O2 | 193.98 | | |
| 35 | 51982-36-6 | PROSTAGLANDIN G2 | C20H32O6 | 368.46 | | |
| 36 | 51982-45-7 | cholesta-5,7,9-trien-3 beta-ol | C27H42O | 382.62 | | |
| 37 | 51983-24-5 | N-(2-Bromo-ethyl)-4-fluoro-benzenesulfonamide | C8H9BrFNO2S | 282.13 | | |
| 38 | 51983-26-7 | Benzenesulfonamide, N-(2-bromoethyl)-4-nitro- | C8H9BrN2O4S | 309.14 | | |
| 39 | 51983-27-8 | N-(2-CHLOROETHYL)-4-METHOXYBENZENESULFONAMIDE | C9H12ClNO3S | 249.71 | | |
| 40 | 51983-82-5 | Benzenepropanoic acid, 4-amino-, 2-(diethylamino)ethyl ester | C15H24N2O2 | 264.36 | | |
| 41 | 51984-00-0 | 4-chloro-2-[(2,2,2-trifluoroacetyl)amino]benzenecarboxylic acid | C9H5ClF3NO3 | 267.59 | | |
| 42 | 51984-12-4 | Hydrazinecarbothioamide, N-butyl-2-(2-pyridinylmethylene)- | C11H16N4S | 236.34 | | |
| 43 | 51984-29-3 | Acetic acid, 2-(2-chlorophenoxy)-, 6-[[2-(aminothioxomethyl)hydrazinylidene]methyl]-3-pyridinyl ester | C15H13ClN4O3S | 364.81 | | |
| 44 | 51984-32-8 | Acetic acid, 2-(2,4,5-trichlorophenoxy)-, 6-[[2-(aminothioxomethyl)hydrazinylidene]methyl]-3-pyridinyl ester | C15H11Cl3N4O3S | 433.7 | | |
| 45 | 51984-35-1 | 3-hydroxy-4-methylpyridine-2-carboxaldehyde thiosemicarbazone | C8H10N4OS | 210.26 | | |
| 46 | 51984-40-8 | Hydrazinecarbothioamide, 2-[(5-hydroxy-2-pyridinyl)methylene]-N-phenyl- | C13H12N4OS | 272.33 | | |
| 47 | 51984-45-3 | Hydrazinecarbothioamide, 2-[(6-methyl-3-pyridazinyl)methylene]- | C7H9N5S | 195.24 | | |
| 48 | 51984-46-4 | (3-METHOXY-PYRIDIN-2-YL)-METHANOL | C7H9NO2 | 139.15 | | |
| 49 | 51984-49-7 | 2-Pyridinol,5-ethoxy-,acetate(ester),1-oxide(9CI) | C9H11NO4 | 197.19 | | |
| 50 | 51984-61-3 | 2-Methyl-5-nitro-3-pyridinamine | C6H7N3O2 | 153.14 | | |
| 51 | 51984-62-4 | 3-chloro-2-methyl-5-nitro-pyridine | C6H5ClN2O2 | 172.57 | | |
| 52 | 51984-63-5 | 5-Chloro-6-methylpyridin-3-ol | C6H6ClNO | 143.57 | | |
| 53 | 51984-68-0 | (3,5-Diethoxypyridin-2-yl)Methanol | C10H15NO3 | 197.23 | | |
| 54 | 51984-71-5 | Ethyl 2-methyl-5-nitro-3-pyridinecarboxylate | C9H10N2O4 | 210.19 | 64-65 °C | |
| 55 | 51984-75-9 | benzyl (20beta)-3beta-hydroxy-12-oxoolean-12-en-29-oate | C37H52O4 | 560.80638 | | |
| 56 | 51985-06-9 | 3-Isopropenylphenol | C9H10O | 134.18 | | |
| 57 | 51985-24-1 | N-(3-FLUOROPHENYL)PICRYLAMINE | C12H7FN4O6 | 322.21 | | |
| 58 | 51985-26-3 | Benzenamine,N-(3,5-dichlorophenyl)-2,4,6-trinitro- | C12H6Cl2N4O6 | 373.11 | | |
| 59 | 51985-95-6 | 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylic acid methyl ester | C6H8N2O3 | 156.14 | 195-200°C | |
| 60 | 51985-96-7 | 1H-Pyrazole-3-carboxamide,5-hydroxy-1-methyl-(9CI) | C5H7N3O2 | 141.13 | | |
| 61 | 51986-00-6 | ethyl 5-hydroxy-1,4-dimethyl-1H-pyrazole-3-carboxylate | C8H12N2O3 | 184.19 | | |
| 62 | 51986-01-7 | ethyl 5-hydroxy-1-(propan-2-yl)-1H-pyrazole-3- carboxylate | C9H14N2O3 | 198.21906 | | |
| 63 | 51986-04-0 | ethyl 5-hydroxy-1-(tetrahydro-3-thienyl)-1H-pyrazole-3-carboxylate S,S-dioxide | C10H14N2O5S | 274.29 | | |
| 64 | 51986-06-2 | 1H-Pyrazole-3-carboxamide, 5-hydroxy-N,1-dimethyl- | C6H9N3O2 | 155.15 | | |
| 65 | 51986-17-5 | Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate | C7H10N2O3 | 170.17 | 140-141 °C | |
| 66 | 51986-32-4 | Benzeneacetonitrile, a-ethyl-2-nitro-a-phenyl- | C16H14N2O2 | 266.29456 | | |
| 67 | 51986-54-0 | 1-diphenylphosphoryl-2-methoxybenzene | C19H17O2P | 308.31 | | |
| 68 | 51986-55-1 | Germane, trichlorotricyclo[3.3.1.13,7]dec-1-yl- | C10H15Cl3Ge | 314.23 | | |
| 69 | 51986-59-5 | 4,8-Dioxa-6-thia-5,7-disilaundecane, 5,5,7,7-tetramethyl- | C10H26O2SSi2 | 266.55 | | |
| 70 | 51986-91-5 | 2,2'-diethyl dihydrogen 4,4'-carbonylbisphthalate | C21H18O9 | 414.36 | | |
| 71 | 51987-06-5 | 1-methyl-1-vinyl-1H-imidazolium methyl sulphate | C7H13N2O4S | 221.25412 | | |
| 72 | 51987-10-1 | [1,1'-Biphenyl]-3,3',5,5'-tetramine | C12H14N4 | 214.27 | | |
| 73 | 51987-20-3 | 2H-Azepin-2-one,1-ethenylhexahydro-,polymerwith1-ethenyl-2-pyrrolidinone | C14H22N2O2 | 250.34 | | |
| 74 | 51987-25-8 | OH-PEG-SH | | | | |
| 75 | 51987-57-6 | 8-Isothiocyanatopyrene-1,3,6-trisulfonic Acid Trisodium Salt | C17H6NNa3O9S4 | 565.46 | | |
| 76 | 51987-58-7 | 8-aminopyrene-1,3,6-trisulfonic acid | C16H11NO9S3 | 457.45 | | |
| 77 | 51987-65-6 | Desglugastrin | C49H61N9O13 | 984.06 | | |
| 78 | 51987-73-6 | boc-L-phenylalanine methyl ester | C15H21NO4 | 279.33 | 36-40°C(lit.) | |
| 79 | 51987-99-6 | N-(1,3,4-Thiadiazolyl)nicotinamide | C8H6N4OS | 206.22 | 291-293°C | |
| 80 | 51988-01-3 | N-(2-naphthyl)-2-phenoxyacetamide | C18H15NO2 | 277.32 | | |
| 81 | 51988-05-7 | 2-phenoxy-N-(2,4,5-trichlorophenyl)acetamide | C14H10Cl3NO2 | 330.59 | | |
| 82 | 51988-13-7 | 1,3,4-Thiadiazole-2(3H)-thione, 5-chloro- | C2HClN2S2 | 152.63 | | |
| 83 | 51988-14-8 | (S)-(4,5-dihydro-5-thioxo-1,3,4-thiadiazol-2-yl) benzenecarbothioate | C9H6N2OS3 | 254.35 | | |
| 84 | 51988-21-7 | p-[[4-[(2-hydroxy-1-naphthyl)azo]phenyl]azo]benzenesulphonic acid, compound with 2,2',2''-nitrilotriethanol (1:1) | C28H31N5O7S | 581.64004 | | |
| 85 | 51988-22-8 | m-[[4-[(4-hydroxy-m-tolyl)azo]-3-methoxyphenyl]azo]benzenesulphonic acid | C20H18N4O5S | 426.45 | | |
| 86 | 51988-24-0 | lithium 3-[[4-[(4-hydroxy-3-methylphenyl)azo]-3-methoxyphenyl]azo]benzenesulphonate | C20H17LiN4O5S | 432.37878 | | |
| 87 | 51988-26-2 | CIACIDRED151 | C22H16N4O4S.Li | 439.4 | | |
| 88 | 51988-28-4 | N,N-diethyl-2'-methylspiro[2H-1-benzopyran-2,3'-[3H]naphtho[2,1-b]pyran]-7-amine | C26H25NO2 | 383.48 | | |
| 89 | 51988-29-5 | methyl 7-(diethylamino)-2'-methylspiro[2H-1-benzopyran-2,3'-[3H]naphtho[2,1-b]pyran]-5'-carboxylate | C28H27NO4 | 441.52 | | |
| 90 | 51988-34-2 | N,N-diethyl-3'-methyl-2,2'-spirobi[2H-1-benzopyran]-7-amine | C22H23NO2 | 333.42 | | |
| 91 | 51988-36-4 | 3-Propionyloxybenzoic acid | C10H10O4 | 194.18 | | |
| 92 | 51988-72-8 | Angiotensin II, 1-de-L-aspartic acid-2-L-norvaline-5-L-isoleucine- (9CI) | C45H63N9O9 | 874.04 | | |
| 93 | 51989-01-6 | (1-methylethylidene)bis(4,1-phenyleneoxy-3,1-propanediyl) diacrylate | C27H32O6 | 452.54 | | |
| 94 | 51989-21-0 | 2'-TFA-NH-dU | C11H12F3N3O6 | 339.22 | | |
| 95 | 51989-23-2 | Uridine,2'-amino-2'-deoxy-5-fluoro- (9CI) | C9H12FN3O5 | 261.2070832 | | |
| 96 | 51989-25-4 | 8-deazafolic acid | C20H20N6O6 | 440.41 | | |
| 97 | 51989-29-8 | 5,6,7,8-tetrahydro-8-deazafolic acid | C20H24N6O6 | 444.44 | | |
| 98 | 51989-39-0 | Glycine, N-(aminocarbonyl)-N-phenyl- | C9H10N2O3 | 194.1873 | | |
| 99 | 51989-44-7 | Thiophosphoric acid dihydrogen S-[[4-(aminomethyl)-5-hydroxy-6-methyl-3-pyridinyl]methyl] ester | C8H13N2O4PS | 264.24 | | |
| 100 | 51989-45-8 | Thiophosphoric acid S-[5-hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridinylmethyl]O-sodium salt | C8H13NNaO5PS | 289.22 | | |
| 101 | 51989-46-9 | 2-Piperidinecarboxamide, 1-butyl-N-(3-hydroxy-2,6-dimethylphenyl)- | C18H28N2O2 | 304.43 | | |
| 102 | 51989-47-0 | 4'-hydroxybupivacaine | C18H28N2O2 | 304.43 | | |
| 103 | 51989-48-1 | 4-Hydroxy-N-desbutyl Bupivacaine | C14H20N2O2 | 248.32 | | |