| CAS登錄號 | 中文名 | 英文名 | 分子結構式 | 分子式 | 詳情 | 供應商 |
| 50-00-0 | 甲醛; 福爾馬林 | Formaldehyde; Formalin; Methanal |  | CH2O | 詳情 | 供應商 |
| 50-28-2 | 雌二醇 | Estradiol; 1,3,5-Estratriene-3,17beta-diol; 17beta-Estradiol; 3,17beta-Dihydroxy-1,3,5(10)-estratriene; Dihydrofolliculin |  | C18H24O2 | 詳情 | 供應商 |
| 50-69-1 | D-核糖; 核糖 | D-Ribose; D(-)-Ribose |  | C5H10O5 | 詳情 | 供應商 |
| 50-89-5 | beta-胸苷; beta-胸甙; 胸腺嘧啶脫氧核苷; 2'-脫氧胸腺嘧啶核苷 | Thymidine; 1-(2-Deoxy-beta-D-ribofuranosyl)-5-methyluracil; 1-(2-Deoxy-beta-D-ribofuranosyl)thymine; Thymine deoxyriboside; 2'-Deoxythymidine; 5-Methyldeoxyuridine |  | C10H14N2O5 | 詳情 | 供應商 |
| 50-99-7 | D-無水葡萄糖; 葡萄糖 | D(+)-Glucose; D-Glucose anhydrous; Dextrose |  | C6H12O6 | 詳情 | 供應商 |
| 51-17-2 | 苯并咪唑 | Benzimidazole; 1,3-Benzodiazole |  | C7H6N2 | 詳情 | 供應商 |
| 51-35-4 | L-羥基脯氨酸; L-羥脯氨酸; 反式-4-羥基-L-脯氨酸 | L-Hydroxyproline; trans-4-Hydroxy-L-proline; (2S,4R)-(-)-4-Hydroxy-2-pyrrolinecarboxylic acid |  | C5H9NO3 | 詳情 | 供應商 |
| 51-79-6 | 氨基甲酸乙酯 | Urethane; Ethyl carbamate; Carbamic acid ethyl ester; Ethylurethane |  | C3H7NO2 | 詳情 | 供應商 |
| 52-89-1 | L-半胱氨酸鹽酸鹽(無水物) | L-Cysteine hydrochloride; (r)-cysteinehydrochloride; (R)-Cysteine-hydrochloride; 3-Mercaptoalanine hydrochloride; Cystein chloride; Cysteine chlorhydrate; Cysteine chlorohydrate; Cysteine, hydrochloride, L-; cysteinechlorhydrate |  | C3H8ClNO2S | 詳情 | 供應商 |
| 55-21-0 | 苯甲酰胺 | benzamide |  | C7H7NO | 詳情 | 供應商 |
| 55-22-1 | 異煙酸; 4-吡啶甲酸 | Isonicotinic acid; 4-Pyridinecarboxylic acid; Pyridine-4-carboxylic acid |  | C6H5NO2 | 詳情 | 供應商 |
| 56-23-5 | 四氯化碳 | Carbon tetrachloride; Tetrachloromethane |  | CCl4 | 詳情 | 供應商 |
| 56-35-9 | 三丁基氧化錫; 雙三丁基氧化錫 | Bis(tributyltin) oxide; Hexabutyldistannoxane; HBD |  | C24H54OSn2 | 詳情 | 供應商 |
| 56-40-6 | 甘氨酸 | Glycine; Aminoacetic acid; Gly; Iconyl; Monazol |  | C2H5NO2 | 詳情 | 供應商 |
| 56-45-1 | L-絲氨酸; beta-羥基丙氨酸 | L-Serine; L-2-Amino-3-hydroxypropionic acid; 3-Hydroxy-alanine; Ser |  | C3H7NO3 | 詳情 | 供應商 |