| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 98-57-7 | 4-氯苯基甲基砜 | 1-chloro-4-(methylsulfonyl)-benzen | C7H7ClO2S | 190.65 | 95-96℃ | 60 °C / 30mmHg(lit.) |
| 98-58-8 | 4-溴苯磺酰基氯 | 4-bromo-benzenesulfonyl chlorid | C6H4BrClO2S | 255.52 | 74-77℃ | 153℃(15 |
| 98-59-9 | 对甲苯磺酰氯 | p-Toluene sulfochloride | C7H7ClO2S | 190.65 | 67-68℃ | 134℃(10 |
| 98-60-2 | 4-氯苯磺酰基氯 | p-chloro-benzenesulfonyl chlorid | C6H4Cl2O2S | 211.07 | 47-52℃ | 141℃(15 |
| 98-61-3 | 4-碘苯磺酰基氯 | 4-Iodophenylsulfonyl Chloride | C6H4ClIO2S | 302.52 | 80-84℃ | |
| 98-62-4 | | 4-amino-benzenesulfonyl fluorid | C6H6FNO2S | 175.17 | 68-69 °C | |
| 98-64-6 | 4-氯苯磺胺 | p-chloro-benzenesulfonamid | C6H6ClNO2S | 191.64 | 140-144 °C | |
| 98-66-8 | 对氯苯磺酸 | 4-chlorobenzenesulfonic acid | C6H5ClO3S | 192.62 | 102℃ | 149℃(22 |
| 98-67-9 | 对羟基苯磺酸 | curative | C6H6O4S | 174.17 | | |
| 98-68-0 | 4-甲氧基苯磺酰基氯 | P-Methoxybenzenesulfonyl chloride | C7H7ClO3S | 206.65 | 36-41℃ | 173℃(14 |
| 98-69-1 | 对乙基苯磺酸 | 4-ethyl-Benzenesulfonic acid | C8H10O3S | 186.23 | | |
| 98-71-5 | 对磺酸苯肼 | 4-Hydrazinobenzenesulfonic acid | C6H8N2O3S | 188.21 | 285-205℃ | |
| 98-72-6 | 对硝基苯胂酸 | p-Nitrophenyl arsonic acid | C6H6AsNO5 | 247.04 | 300°C(lit.) | |
| 98-73-7 | 叔丁基苯甲酸 | Benzoic acid,4-(1,1-dimethylethyl)- | C11H14O2 | 178.23 | 165-167℃ | 280°C |
| 98-74-8 | 对硝基苯磺酰氯 | Benzenesulfonyl chloride,4-nitro- | C6H4ClNO4S | 221.62 | 75-80℃ | 143-144℃ |
| 98-75-9 | | propazolamide | | | | |
| 98-77-1 | 1-哌啶二硫代羧酸与哌啶(1:1)的化合物 | 1-Piperidinecarbodithioic acid, compd. with piperidine (1:1) | C6H11NS2·C5H11N | 246.42 | | |
| 98-78-2 | | 3-oxo-1-cyclopentanecarboxylic acid | C6H8O3 | 128.13 | 59-62℃ | |
| 98-79-3 | L-2-吡咯烷酮-5-羧酸 | l-pyroglutamic | C5H7NO3 | 129.11 | 152-162℃ | |
| 98-80-6 | 苯硼酸 | phenyboronic | C6H7BO2 | 121.93 | 217-220℃ | |
| 98-81-7 | | (1-bromo-vinyl)-benzene | C8H7Br | 183.04 | | 67℃(4 to |
| 98-82-8 | 异丙(基)苯 | cum ene | C9H12 | 120.19 | 96-154℃ | 152-154℃ |
| 98-83-9 | α-甲基代苏合香烯 | alpha-methyl | C9H10 | 118.18 | -23-166℃ | 165-169℃ |
| 98-84-0 | 1-苯乙胺 | alpha-methyl-benzenemethanamin | C8H11N | 121.18 | | |
| 98-85-1 | DL-1-苯基乙醇 | alpha-methyl-benzyl alcoho | C8H10O | 122.16 | 19-20 °C(lit.) | 204 °C/745 mmHg(lit.) |
| 98-86-2 | 苯基酰基甲烷 | phenyl methyl ketone(acetophenone) | C8H8O | 120.15 | 19-20 °C(lit.) | 202 °C(lit.) |
| 98-87-3 | 苄叉二氯 | benzal | C7H6Cl2 | 161.03 | | |
| 98-88-4 | 苯甲酰氯 | benzoylchloride | C7H5ClO | 140.57 | -1 °C | 198 °C(lit.) |
| 98-89-5 | 六氢苯甲酸 | Hexahyl carbonic acid | C7H12O2 | 128.17 | 29-31 °C(lit.) | 232-233 °C(lit.) |
| 98-91-9 | 硫代苯甲酸 | thio-benzoic aci | C7H6OS | 138.19 | 15-18℃ | 122℃(30 |
| 98-92-0 | 尼克酰胺 | Nicotinamide(Niacinamide) | C6H6N2O | 122.12 | 128-131 °C(lit.) | 150-160 °C |
| 98-94-2 | 二甲氨基环己烷 | dimethylcyclohexylamine | C8H17N | 127.23 | -60℃ | 160℃ |
| 98-95-3 | 硝化苯 | Benzene,nitro- | C6H5NO2 | 123.11 | 5-6℃ | 210-211℃ |
| 98-96-4 | 羧酸胺 | Pyrazine-carboxamide | C5H5N3O | 123.11 | 188-191℃ | |
| 98-97-5 | 吡嗪-2-羧酸 | Pyrazinecarboxylic acid | C5H4N2O2 | 124.10 | 222-225℃ | |
| 98-98-6 | 2-羧酸吡啶 | 2-picolinic acid | C6H5NO2 | 123.11 | 136-139℃ | |
| 980-21-2 | | dityrosine | C18H20N2O6 | 360.36 | | |
| 980-26-7 | 5,12-二氢-2,9-二甲基喹啉并[2,3-B]吖啶-7,14-二酮 | quinacridone magenta pigment(pigment violet 122) | C22H16N2O2 | | | |
| 980-71-2 | | g-(4-bromophenyl)-N,N-dimethyl-2-pyridine propanamine maleate | C20H23BrN2O4 | 435.31 | 134-135°C | |
| 98002-35-8 | | sin1 protein | | | | |
| 98002-49-4 | 聚乙烯醇树脂 | vinol523 | [-CH2-CHOH-]n | 63800-114400 | | |
| 98002-50-7 | | vinol 540 | | | | |
| 98006-45-2 | | acetic-2-13c anhydride | | | | 138℃ |
| 98006-90-7 | 2 - 溴-5 - 甲基吡嗪 | 2-bromo-5-methylpyrazine | C5H5BrN2 | 173.01 | | |
| 98006-91-8 | 2-甲基-5-氰基吡嗪 | 5-methylpyrazine-2-carbonitrile | C6H5N3 | 119.12 | | 247 °C |
| 98007-50-2 | | cis-2-methyl-but-2-enoic acid dipropyl ester | C11H18O4 | 214.26 | | |
| 98007-99-9 | | ici 164384 | | | | |
| 98008-06-1 | 氟维司群ep杂质b | fulvestrant ep impurity b | | | | |
| 98008-66-3 | | 4-(n-cbz-n-methyl-amino)butanoic acid | | | | |
| 98009-60-0 | 3-咪唑基-1-基-丁酸 | 3-(1h-imidazol-1-yl)butanoic acid | | | | |
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