| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 2021-19-4 | | n-butyl-4-cyclohexene-2-dicarboximide | | | | |
| 2021-21-8 | | n-methyl-4-cyclohexene-2-dicarboximide | | | | |
| 2021-28-5 | 3-苯基丙酸乙酯 | 3-phenyl-propanoic acid ethyl ester | C11H14O2 | 178.23 | | 247-248 °C(lit.) |
| 2021-40-1 | 2-(4-羟基-3-甲氧基苯基)-2-氧代乙酸 | 2-(4-Hydroxy-3-methoxyphenyl)-2-oxoacetic acid | C9H8O5 | 196.16 | | 395.4±42.0 °C(Predicted) |
| 2021-58-1 | | (+/-)-2-thiophenepropanoic aci | C7H9NO2S | 171.21 | 275-277 °C (dec.) (lit.) | |
| 2021-89-8 | | 4-(3-(2-(trifluoromethyl)phenothiazin-10-yl)propyl)-1-piperazineethano acet | | | | |
| 20210-99-5 | | 2-(2-ethoxyethoxy)ethyl salicylate | | | | |
| 20211-67-0 | N,N-二乙基-2-甲基-1-丙烷 | 1-Propanamine, N,N-diethyl-2-methyl- | C8H19N | 129.2432 | | 132 °C |
| 20211-69-2 | | Arsenic,tribenzyldichloro- | C21H21AsCl2 | 419.22 | | |
| 20211-76-1 | 氯化镧水合物 | lanthanum(iii) chloride, hydrated | Cl3La.xH2O | 245.26 | 92-93°C (Lit.) | |
| 202114-47-4 | | d-ribose (u-13c5, 98%) | | | | |
| 202114-48-5 | | azt (methyl-13c, 99%) 96% chemical purity | | | | |
| 202114-50-9 | | 3,5-dimethylbenzoic acid (3-methyl-13c, 99%) | | | | |
| 202114-53-2 | | n-(9-fluorenylmethoxycarbonyl)-l-leucine- 1-13c | | | | |
| 202114-57-6 | 辛酸-1,2-13c2 | octanoic acid-1,2-13c2 | | | | |
| 202114-60-1 | | 4-nitrotoluene (ring-13c6, 99%) 1 mg/ml in acetonitrile | | | | |
| 202114-66-7 | | l-cysteine (13c3, 99%) | | | | |
| 202118-70-5 | 1-羟基-2-氧代-1,2-二氢吡啶-3-羧酸 | 1-Hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid | | | | |
| 2021182-98-7 | 4-羟基-1-氧代-2,7-二氮杂螺[4-]癸烷-7-羧酸叔丁酯 | tert-butyl 4-hydroxy-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate | | | | |
| 202119-00-4 | | 1-(4-ethoxyphenyl)pyrimidine-2,4,6(1h,3h,5h)-trione | | | | |
| 20212-77-5 | | 6-o-(2-acetamido-2-deoxy-b-d-gluco-*pyranosyl)- d- | C14H25NO11 | 383.35 | | |
| 20212-92-4 | | Triethylammonium uridine cyclic 3',5'-(hydrogen phosphate) | C15H26N3O8P | 407.36 | | |
| 202120-08-9 | [d-asp3，e-dhb7]-微囊藻毒素 rr 溶液 | [d-asp3, e-dhb7]-microcystin-rr solution | | | | |
| 2021201-99-8 | (S)-3-(叔-丁基)-4-(4',6'-二甲氧基-[1,1':3',1''-三联苯]-5'-基)-2,3-二氢苯并[d][1,3]氧杂磷杂环戊烯 | (S)-3-(tert-butyl)-4-(4',6'-dimethoxy-[1,1':3',1''-terphenyl]-5'-yl)-2,3-dihydrobenzo[d][1,3]oxaphosphole | C31H31O3P | 82.55 | | |
| 2021202-03-7 | (S)-3-(叔丁基)-4-(2,6-二甲氧基-3,5-二甲基苯基)-2,3-二氢苯并[d][1,3]氧杂磷杂环戊烯 | (S)-3-(tert-butyl)-4-(2,6-dimethoxy-3,5-dimethylphenyl)-2,3-dihydrobenzo[d][1,3]oxaphosphole | C21H27O3P | 358.41 | | |
| 2021203-20-1 | 5-氯-3-硝基-1H-吡唑并[4,3-b]吡啶 | 5-Chloro-3-nitro-1H-pyrazolo[4,3-b]pyridine | C6H3ClN4O2 | 198.57 | | 432.4±40.0 °C(Predicted) |
| 2021222-96-6 | methyl 2-(4-(7-chloroquinolin-4-yl)piperazin-1-yl)acetate | | C16H18ClN3O2 | 319.791 | | |
| 2021224-02-0 | 2-乙氧基-5-磺基苯甲酸 | 2-Ethoxy-5-sulfobenzoic acid | C9H10O6S | 246.24 | | |
| 2021235-95-8 | 7-氯咪唑并[1,5-a]吡啶-5-甲醛 | 7-chloroimidazo[1,5-a]pyridine-5-carbaldehyde | | | | |
| 2021236-22-4 | 6-氯咪唑并[1,5-a]吡啶-5-甲酸乙酯 | ethyl 6-chloroimidazo[1,5-a]pyridine-5-carboxylate | | | | |
| 202124-67-2 | | 5-cyanoindole-1-acetic acid | C11H8N2O2 | 200.19 | | |
| 2021242-03-3 | [(1R,2R)-2-氨基-1,2-二苯基乙基(4-(三氟甲基)苯磺酰胺基)](对伞花烃)钌(ii)二苯基磷酸酯 | [(1R,2R)-2-amino-1,2-diphenylethyl(4-(trifluoromethyl)phenylsulfonamido)](p-cymene)ruthenium(ii) diphenyl phosphate | | | | |
| 2021244-96-0 | 2-((4-溴-1H-吡唑-1-基)甲基)吡嗪 | 2-((4-Bromo-1H-pyrazol-1-yl)methyl)pyrazine | C8H7BrN4 | 239.07 | | 374.8±37.0 °C(Predicted) |
| 2021255-73-0 | Phenylephrine Glucuronide | | C15H21NO8 | 343.32918 | | |
| 2021255-88-7 | | (3-chloropyridin-2-yl)zinc pivalate (0.60 mmol/g) | | | | |
| 2021255-90-1 | | (3-formyl-1-methyl-1h-indol-2-yl) zinc pivalate (1.00 mmol/g) | | | | |
| 2021255-91-2 | | qphos pd g3 | C61H60FeNO3PPdS | 1080.44 | | |
| 2021256-19-7 | | 1-(tert-butyl) 2-methyl (2s,4r)-4-((4-bromo-7-fluoroisoindoline-2-carbonyl)oxy)pyrrolidine-1,2-dicarboxylate | | | | |
| 202126-48-5 | 5-丙基-1,3-二硫醇并[4,5-d][1,3]二硫杂环戊烯-2-硫酮 | 5-propyl-1,3-dithiolo[4,5-d][1,3]dithiole-2-thione | C7H8S5 | 252.44 | 49-53°C | |
| 202126-51-0 | 5-己基-1,3-二硫醇并[4,5-d][1,3]二硫杂环戊烯-2-硫酮 | 5-hexyl-1,3-dithiolo[4,5-d][1,3]dithiole-2-thione | C10H14S5 | 294.52 | | |
| 20213-26-7 | Dihydrolapachenole | | C16H18O2 | 242.31 | | |
| 20213-30-3 | | 1-(3-methyl-butoxy)-naphthalene | C15H18O | 214.30 | | |
| 202130-68-5 | | 2-(4-phenylazo-phenylamino)-ethanesulfonyl fluoride | | | | |
| 202130-79-8 | | 4-((2-hydroxy-3-nitro-benzylidene)-amino)-benzoic acid | | | | |
| 202130-82-3 | | 5-bromo-2-hydroxy-benzoic acid (2-hydroxy-5-methoxy-benzylidene)-hydrazide | | | | |
| 202131-14-4 | | anthracen-9-ylmethylene-(4-phenylazo-phenyl)-amine | | | | |
| 202131-19-9 | | 3-decyloxycarbonylmethyl-1,2-dimethyl-3h-benzoimidazol-1-ium, chloride | | | | |
| 202131-32-6 | dl-(3-苯氧基苯基)丙氨酸 | dl-(3-phenoxyphenyl)alanine | C15H15NO3 | 257.28 | | |
| 202131-74-6 | | 1,2-dibromo-3,6-dichloro-4,5-dimethyl-benzene | | | | |
| 202131-76-8 | | 1,4-dimethyl-cyclohexane-1,4-dicarboxylic acid bis-(2-bromo-ethyl) ester | | | | |
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