| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 21050-95-3 | | 1H-Benzotriazole,1-chloro- | C6H4ClN3 | 153.57 | | |
| 21051-07-0 | 3-氨基-n-(吡啶-3-基)丙酰胺二盐酸盐 | 3-amino-n-(pyridin-3-yl)propanamide dihydrochloride | C8H13Cl2N3O | 238.11 | | |
| 21051-13-8 | 2-氨基-N-(吡啶-4-基)乙酰胺二盐酸盐 | 2-amino-N-(pyridin-4-yl)acetamide dihydrochloride | C7H10ClN3O | 187.63 | | |
| 210529-01-4 | n-boc-d-(三苯甲基)天冬酰胺 | n^a-boc-n^y-trityl-d-asparagine | C28H30N2O5 | 474.55 | | |
| 210529-62-7 | | nalpha-(2,4-dinitro-5-fluorophenyl)-d-valinamide | C11H13FN4O5 | 300.24 | 173-177℃ | |
| 21053-71-4 | | 3-acetyl-4,5-diphenyl-2(5h)-furanone | | | | |
| 21053-91-8 | | 4-hydroxy-3-octyl-2(5h)furanon | | | | |
| 210530-70-4 | | methyl 2-(3,5-difluorophenyl)acetate | C9H8F2O2 | 186.1554 | | |
| 210530-71-5 | 3,4-二氟苯乙酸甲酯 | 3,4-difluorophenylacetic acid methyl ester | | | | |
| 210531-45-6 | 5,5'-羰基双(2-氟苯磺酸)二钠盐 | Sodium 5,5'-carbonylbis(2-fluorobenzenesulfonate) | C13H6F2Na2O7S2 | 422.29 | | |
| 2105319-44-4 | ethyl 6-bromo-4-methoxy-1H-indole-2-carboxylate | | C12H12NO3Br | 298.1321 | | |
| 210532-24-4 | 2,3-二氟苯磺酰氯 | 2,3-difluorobenzenesulfonyl chloride | | | | |
| 210532-25-5 | 3,5-二氟苯磺酰氯 | 3,5-Difluorobenzenesulfonyl chloride | F2C6H3SO2Cl | 212.60 | | |
| 210533-45-2 | | (2S)-1-benzyl-2-piperidinecarboxylic acid | C13H17NO2 | 219.28 | | 358.6±35.0 °C(Predicted) |
| 210534-16-0 | AMINO-MODIFIER C6 DT 亚磷酰胺单体 | Amino-modifier-C6-dT CEP | C50H62F3N6O10P | 995.03 | | |
| 210536-47-3 | | 4-methoxy-2-vinylaniline | | | | |
| 210537-04-5 | 1,11B-二氢-11B-羟基美迪紫檀素 | 11b-Hydroxy-11b,1-dihydromedicarpin/1,11b-Dihydro-11b-hydroxymedicarpin | C16H16O5 | 288.30 | | 490.0±45.0 °C at 760 mmHg |
| 210537-27-2 | 氯化铁(Ⅲ) | fe(iii) coproporphyrin i chloride | | | | |
| 210537-32-9 | | 2,6-bis[1-(2-methylphenylimino)ethyl)ethyl]pyridine | C23H23N3 | 341.45 | | |
| 210538-68-4 | 5,6,7,8-四氢吡啶并[4,3-d]嘧啶盐酸盐 | 5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine hydrochloride | C7H10ClN3 | 171.63 | | |
| 210538-72-0 | 2-甲基-7,8-二氢吡啶并[4,3-d]嘧啶-6(5h)-c羧酸叔丁酯 | tert-butyl 2-methyl-7,8-dihydropyrido[4,3-d]pyrimidine-6(5h)-carboxylate | | | | |
| 2105380-44-5 | 顺式-4-(氮杂环丁烷-1-基)-3-氟哌啶二盐酸盐 | cis-4-(Azetidin-1-yl)-3-fluoropiperidine dihydrochloride | C8H17Cl2FN2 | 231.1384 | | |
| 210539-04-1 | 6-苄基-2-氯-5,6,7,8-四氢-[1,6]萘啶 | 6-benzyl-2-chloro-5,6,7,8-tetrahydro-1,6-naphthyridine | C15H15ClN2 | 258.75 | | 373.1±42.0 °C(Predicted) |
| 210539-05-2 | 2-氯-5,6,7,8-四氢-1,6-萘啶 | 2-chloro-5,6,7,8-tetrahydro-1,6-naphthyridine | C8H9ClN2 | 168.62 | | 284.8±40.0°C at 760 mmHg |
| 210539-73-4 | | ethyl 2-[(4-methylphenyl)sulfanyl]propanoate | | | | |
| 21054-71-7 | 1,3-双十二烷基-2-甲基咪唑氯盐 | 1,3-Didodecyl-2-methyl-1H-imidazol-3-ium chloride | C28H55ClN2 | 455.20 | | |
| 21054-72-8 | 氯化1-苄基-2-甲基-3-月桂基咪唑翁 | 1H-Imidazolium,1-dodecyl-2-methyl-3-(phenylmethyl)-,chloride | C23H37N2·Cl | 377.01 | | |
| 21054-79-5 | 1-癸基-2,3-二甲基咪唑溴盐 | 1-decyl-2,3-dimethyl-1h-imidazol-3-ium bromide | C15H29BrN2 | 317.3 | 84-86°C | |
| 21054-97-7 | | 1,4,5,6-tetrahydro-3-(1-naphthylmethyl)-as-triazin hydrobromide | | | | |
| 210545-23-6 | α-乙酰基-d-精氨酸二水合物 | nalpha-acetyl-d-arginine dihydrate | C8H20N4O5 | 252.27 | | |
| 210545-35-0 | 1-Benzyl-5-(3,4-dichloro-phenyl)-5-[3-(tetrahydro-pyran-2-yloxy)-propyl]-piperidin-2-one | | C26H31Cl2NO3 | 476.443 | | |
| 21055-30-1 | | 4,4'-diamidino-diphenylamin dihydrochloride | | | | |
| 21055-37-8 | | methyl 2-isothiocyanatoacetate | C4H5NO2S | 131.14 | | 138 °C |
| 21055-41-4 | l-2-异硫氰酸根合-3-甲基丁酸甲酯 | methyl l-2-isothiocyanato-3-methylbutyrate | | | | |
| 21055-43-6 | | methyl l-2-isothiocyanato-4-methylvalerate | | | | |
| 21055-47-0 | l-2-异硫氰酸甲酯-4-(甲硫基)丁酸甲酯 | methyl l-2-isothiocyanato-4-(methylthio)butyrate | | | | |
| 21055-49-2 | | dimethyl l-isothiocyanatosuccinate | | | | |
| 21055-50-5 | | dimethyl n-(thioxomethylene)glutamate | | | | |
| 21055-88-9 | | (4-methyl-1,3-phenylene)bis-carbamic aci bis[2-[ethyl[(heptadecafluorooctyl | | | | |
| 210552-07-1 | | n-methyl-3-thiophenemethanamine | C6H9NS | 127.21 | | 174.1°C |
| 2105526-91-6 | 螺[3.3]庚烷-2-腈 | spiro[3.3]heptane-2-carbonitrile | C8H11N | 121.1796 | | |
| 210555-94-5 | 十二烷基酚 | 4-Dodecylphenol (mixture of isomers) | C18H30O | 262.44 | | 310-335 °C at 760 mmHg (lit.) |
| 210557-75-8 | | 2,2,15,15-tetramethylhexadecanedioic acid | | | | |
| 210557-94-1 | Nα-Z-Nomega-(4-甲氧基-2,3,6-三甲基苯磺酰基)-D-精氨酸环己基铵盐 | Z-D-ARG(MTR)-OH CHA | C30H45N5O7S | 619.77 | 196-199 °C | |
| 210557-95-2 | | acetyl-l-tyrosine methyl ester hydrate | | | | |
| 21056-29-1 | | 5'-chloro-2-propyl-o-valerotoluidid | | | | |
| 21056-56-4 | | d-methionine sulfoxide | C5H11NO3S | 165.21 | | |
| 21056-77-9 | 1H-吡唑-5-羧酸乙酯 | Ethyl 1H-pyrazole-5-carboxylate | C6H8N2O2 | 140.14 | | |
| 21056-78-0 | | 3-(1h-pyrazol-4-yl)-1-propanamine | | | | |
| 21056-98-4 | | phosphonic acid, calcium salt (1:1) | | | | |
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