| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 199-54-2 | | benz(e)aceanthrylene | | | | |
| 1990-07-4 | | butyric acid, 4-(2,4-dihydroxy-3,3-dimethylbutyramido)-, calcium salt, hydrate | | | | |
| 1990-11-0 | | 3-phenyl-2-propenoate | C36H52O2 | 516.80 | | |
| 1990-22-3 | | phosphorous acid tripentyl ester | C15H33O3P | 292.39 | | |
| 1990-24-5 | 1-(2-羟基-5-丙基苯基)乙酮 | 1-(2-hydroxy-5-propylphenyl)ethanone | | | | |
| 1990-29-0 | D-阿卓糖 | D-Altrose | C6H12O6 | 180.15 | 106-108℃ | |
| 1990-34-7 | | n-acetyl-dl-tryptopha 4-nitrophenyl ester | | | | |
| 1990-78-9 | | 3-(2-chloroethyl)-3-azoniabicyclo(3.2.2)nonan chloride | | | | |
| 1990-90-5 | 4-氨基-3-甲基吡啶 | 4-amino-3-picolin | C6H8N2 | 108.14 | | |
| 19900-46-0 | | 2-methylglycidyl acrylate | | | | |
| 19900-65-3 | 4,4'-亚甲基双(2-乙基)苯胺 | 4,4'-methylenebis[2-ethyl-Benzenamine | C17H22N2 | | | |
| 19900-66-4 | | 4,4'-methylenebis(o-isopropyl-anilin | | | | |
| 19900-69-7 | | 4,4'-methylenebis[2,6-bis(1-methylethyl)-benzenamin | C25H38N2 | 366.59 | 10-30℃ | 215-218℃ |
| 19900-72-2 | 二(3-甲基-4-氨基-6-乙基)苯甲烷 | di-(3-Methyl-4-amino-6-etyhyl)phenyl methane | | | | |
| 19900-84-6 | 异硫氰酸甲氧基甲酯 | methoxymethyl isothiocyanate | | | | |
| 19900-85-7 | 异丁醛二(2-乙基己基)缩醛 | Isobutyraldehyde, bis(2-ethylhexyl) acetal | C20H42O2 | | | |
| 199003-22-0 | 1-boc-4-(羟甲基)吡唑 | 1-boc-4-(hydroxymethyl)pyrazole | | | | |
| 199005-69-1 | | (S)-na-z-nb-boc-2,3-diaminopropan-1-ol | | | | |
| 199006-54-7 | | fmoc-p-me-phe-oh | C25H23NO4 | 401.46 | | |
| 19901-15-6 | | acetaldehyde-2,2,2-d3 | | | | 21℃ |
| 199014-22-7 | 甲基磺酸2-(2-((甲基磺酰基)氧基)乙基)-4-硝基苄酯 | 2-(2-(methylsulfonyloxy)ethyl)-4-nitrobenzyl (methanesulfonate) | | | | |
| 199014-88-5 | | 1-(4-methoxy-3-methylphenyl)-1-propanol | | | | |
| 19902-08-0 | | (+)-beta-pinene | C10H16 | 136.23 | | |
| 19902-16-0 | | 2,3,4-tetrahydro-6,7-dimethoxy-1-methyl-2-(phenylmethyl)- (S)-isoquinolin | | | | |
| 19902-91-1 | | 6-dihydro-4-methoxy-6-(3,4-(methylenedioxy)phenethyl)- (S)-2h-pyran-2-on | | | | |
| 19902-98-8 | | t-2-ethyl-r-1,c-3-dimethylcyclopentane | C9H18 | 126.24 | | |
| 19902-99-9 | | (1α,2α,3α)-2-ethyl-1,3-dimethylcyclopentane | C9H18 | 126.24 | | |
| 19903-73-2 | | (-)-epicedrol | C15H26O | 222.37 | | |
| 19905-58-9 | | stearic-2,2-d2 acid | | | 67-69℃ | 361℃ |
| 1990505-73-1 | (1S,2R)-2-(4-氟苯基)环丙胺盐酸盐 | (1S,2R)-2-(4-fluorophenyl)cyclopropanamine hydrochloride | | | | |
| 1990509-29-9 | 3-(三烯丙基硅烷基)丙烯酸丙酯 (含稳定剂mehq) | 3-(triallylsilyl)propyl acrylate (stabilized with mehq) | | | | |
| 1990514-48-1 | 2,4-二氯-5,7-二氢-6h-吡咯并[3,4-d]嘧啶-6-羧酸苄酯 | benzyl 2,4-dichloro-5,7-dihydro-6h-pyrrolo[3,4-d]pyrimidine- | | | | |
| 19906-72-0 | 蜂斗菜内酯 | bakkenolide | | | | |
| 199062-33-4 | | l-serine, l-methionyl-l-glutaminyl-l-tyrosyl-l-isoleucyl-l-lysyl-l-alanyl-l-asp | | | | |
| 19908-48-6 | | inermin | | | | |
| 19909-38-7 | | 1-(beta-butoxy-p-cyclopentylphenethyl)-4-methyl-piperazin dihydrochloride | | | | |
| 19909-85-4 | | Phosphonous dichloride,(4-methoxyphenyl)- | C7H7Cl2OP | 209.01 | | |
| 1991-52-2 | | 2,5-di-tert-butyl-4-hydroxyanisole | C15H24O2 | 236.35 | | |
| 1991-78-2 | | 3-(p-chlorophenyl)-alanin | | | | |
| 1991-79-3 | 2-溴-dl-苯丙氨酸 | 2-bromo-dl-phenylalanine | | | | |
| 1991-83-9 | | 4-nitrophenylalanine | | | | |
| 1991-87-3 | | h-p-me-phe-oh | C10H13NO2 | 179.21 | | |
| 19910-30-6 | | Methyl 2,3,3-trimethylbutanoate | C8H16O2 | 144.21 | | |
| 19910-33-9 | α-甲基-4-硝基苯乙酸 | 2-(4-nitrophenyl)propionic acid | | | 88-89℃ | |
| 19910-65-7 | | peroxydicarbonic acid, di-sec-butyl ester | | | | |
| 199102-69-7 | | 4-n-propylbenzoylacetonitrile | | | | |
| 199102-80-2 | | 2,3-dimethoxybenzoylacetonitrile | | | | |
| 199102-91-5 | | ethyl 3-methoxy-4-propan-2-yloxybenzoate | | | | |
| 199103-19-0 | | 1-cbz-4-(mesyloxy)piperidine | | | | |
| 199105-17-4 | | 1-(2-aminophenyl)-4-benzylpiperazine | | | | |
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