| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 203-33-8 | | benz(a)aceanthrylene | | | | |
| 203-42-9 | | diacenaphtho(1,2-b 1',2'-d)thiophene | | | | |
| 203-64-5 | | 4h-cyclopenta(def)phenanthrene | | | | |
| 203-65-6 | | 4,5-Iminophenanthrene(form 1) | C14H9N | 191.23 | | |
| 203-80-5 | | phenalene | C13H10 | 166.22 | | 70 °C at 0.01 mmHg |
| 2030-63-9 | 氯苯吩嗪 | N,5-Bis(4-chlorophenyl)-3,5-dihydro-3-(isopropylimino)phenazin-2-amine | C27H22Cl2N4 | 473.41 | | |
| 2030-83-3 | | 3-dodecene | C12H24 | 168.32 | | |
| 2030-84-4 | | 4-dodecene | C12H24 | 168.32 | | |
| 20300-00-9 | | vamidothion sulfoxide | | | | |
| 20300-02-1 | | thiophene-2-thiocarboxamide | C5H5NS2 | 143.22 | 101-105°C | |
| 20300-10-1 | 萘-1-硫代甲酰胺 | naphthalene-1-thiocarboxamide | | | | |
| 20300-26-9 | | (2,2'-binaphthalene)-8,8'-dicarboxaldehyde, 1,1',6,6',7,7'-hexahydroxy-5,5'-dii | | | | |
| 20300-44-1 | | 22-dienolide, 3-beta-((6-deoxy-alpha-l-mannopyranosyl)oxy)-5,14-5-beta-bufa-2 | | | | |
| 20300-50-9 | | odontoside | | | | |
| 20300-58-7 | 7-氯-2-氧代-2H-苯并吡喃-3-羧酸 | 7-Chloro-2-oxo-2H-chromene-3-carboxylic acid | | | | |
| 20300-59-8 | | 7-methoxycoumarin-3-carboxylic acid | C11H8O5 | 220.18 | 196° C | |
| 203000-48-0 | (s,s)-1,2-双[(叔丁基)甲基膦]乙烷合双(硼烷) | (s,s)-1,2-bis[boranato(tert-butyl)methylphosphino]ethane | | | | |
| 203000-59-3 | (s,s)-1,2-双[(叔丁基)甲基膦]乙烷[Η-(2,5-二环庚二烯)]合四氟硼酸铑(i) | | | | | |
| 203007-70-9 | 3,3'-双(三氟甲基)-[1,1'-联苯]-4,4'-二羧酸 | 3,3'-Bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-dicarboxylic acid | C16H8F6O4 | 378.22 | | 463.1±45.0 °C(Predicted) |
| 20301-63-7 | | thiometon-sulfone | | | | |
| 2030105-85-0 | 4',4''',4'''''-氮三[([1,1'-联苯]-3,5-二甲醛)] | 4',4''',4'''''-Nitrilotris(([1,1'-biphenyl]-3,5-dicarbaldehyde)) | C42H27NO6 | 641.67 | | |
| 2030118-14-8 | Ald-C2-PEG4-azide | | C11H21N3O5 | 275.3 | | |
| 2030168-38-6 | 3,4-Dibromo-mal-peg4-t-butyl ester | | C19H29Br2NO8 | 559.24 | | |
| 20302-14-1 | 9,9-二苯基芴 | 9,9-diphenylfluorene | C25H18 | 318.41 | | 438.9ºC |
| 20302-25-4 | | pyridinium, 1-ethyl-3-(p-(p-((p-(1-ethylpyridinium-3-yl)phenyl)carbamoyl)cinnam | | | | |
| 20302-26-5 | | ethylbenzene-2,3,4,5,6-d5 | | | | 136℃ |
| 20302-39-0 | | 3-aza-9-azoniabicyclo(3.3.1)nonane, 3,3'-(m-phenylenebis(oxyethylene))bis(9,9-d | | | | |
| 20302-54-9 | | pyriclor, | | | | |
| 20303-31-5 | | METHYL 5-(BENZYLOXYCARBONYL)-2,4-DIMETHYL-3-PYRROLEPROPIONATE | C18H21NO4 | 315.36 | | 468.8°C at 760 mmHg |
| 20303-38-2 | | Cobalt,tetracarbonyl(triiodogermyl)- | C4CoGeI3O4 | 624.33 | | |
| 20303-39-3 | | Cobalt,tetracarbonyl(dichlorophenylstannyl)- | C10H5Cl2CoO4Sn | 437.67 | | |
| 20304-47-6 | | calactin | | | | |
| 20304-49-8 | | 5-alpha-card-20(22)-enolide, 3-beta-((6-deoxy-beta-d-hexopyranos-2-ulos-1-yl)ox | | | | |
| 20304-70-5 | | 9-amino-2-ethoxy-6-nitro-acridin | | | | |
| 20304-86-3 | | 5-methylbenzofurazan | C7H6N2O | 134.13 | 35-38°C | |
| 2030437-90-0 | 4,4'-双(三氟甲基)-2,2'-联吡啶双[3,5-二氟-2-[5-三氟甲基-2-吡啶基]苯基]铱(iii)六氟磷酸盐 | 4,4'-bis(trifluoromethyl)-2,2'-bipyridinebis[3,5-difluoro-2-[5-trifluoromethyl-2-pyridinyl)phenyl] iridium(iii) hexafluorophosphate | C36H16F22IrN4P | 1145.69 | | |
| 2030437-92-2 | ir[dffppy]2-(4,4′-dcf3bpy)pf6 | photocatalyst | C34H16F18IrN4P | 1045.68 | >300°C | |
| 203047-33-0 | 1-boc-4-(3-硝基苄基)哌嗪 | 1-boc-4-(3-nitrobenzyl)piperazine | C16H23N3O4 | 321.37 | | |
| 203047-34-1 | | tert-butyl 4-(3-fluorobenzyl)piperazine-1-carboxylate | | | | |
| 203047-35-2 | | tert-butyl 4-(3-cyanobenzyl)piperazine-1-carboxylate | | | | |
| 203047-37-4 | | 1-(3-nitrobenzyl)piperazine 2hcl | | | | |
| 203047-38-5 | | 3-(1-piperazinylmethyl)benzonitrile | C12H15N3 | 201.27 | | |
| 20305-51-5 | | octanoic acid, (1,2-diethylethylene)di-p-phenylene ester | | | | |
| 20305-86-6 | | acetaldehyde hydroxysulfonate | | | | |
| 203054-46-0 | 2,2-二乙氧基乙脒盐酸盐 | 2,2-diethoxyacetamidine hydrochloride | C6H15ClN2O2 | 182.65 | | |
| 203056-15-9 | | (R)-tert-butyl 2-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate | | | | |
| 203056-27-3 | | 1-boc-(2S)-(n-methoxy-n-methylcarbamoyl)piperidine | C13H24N2O4 | 272.34 | | 343.8±52.0 °C(Predicted) |
| 203059-80-7 | | 1,2-difluoro-4,5-dimethoxybenzene | C8H8F2O2 | 174.15 | 41-43℃ | |
| 203059-83-0 | 2,4-二氟-1-异丙氧基苯 | 2,4-Difluoro-1-isopropoxybenzene | C9H10OF2 | 172.172 | | 197.2±20.0 °C(Predicted) |
| 203059-85-2 | 1,2-二碘-4-氟苯 | 3,4-diiodofluorobenzene | | | | |
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