| 聚氨酯 | jù ān zhǐ | polyurethane |  |
| 赖氨酸 | lài ān suān | lysine (Lys), an essential amino acid | |
| 转氨酶 | zhuǎn ān méi | transferase (enzyme) | |
| 蛋氨酸 | dàn ān suān | methionine (Met), an essential amino acid | |
| 谷氨酸 | gǔ ān suān | glutamic acid (Glu), an amino acid | |
| 酪氨酸 | lào ān suān | tyrosine (Tyr), an amino acid | |
| 丙氨酸 | bǐng ān suān | alanine (Ala), an amino acid | |
| 甘氨酸 | gān ān suān | glycine (Gly), an amino acid | |
| 精氨酸 | jīng ān suān | argnine (Arg), an essential amino acid | |
| 色氨酸 | sè ān suān | tryptophan (Trp), an essential amino acid | |
| 丝氨酸 | sī ān suān | serine (Ser), an amino acid | |
| 苏氨酸 | sū ān suān | threonine (Thr), an essential amino acid | |
| 亮氨酸 | liàng ān suān | leucine (Leu), an essential amino acid | |
| 组氨酸 | zǔ ān suān | histidine (His), an essential amino acid | |
| 甲氨基 | jiǎ ān jī | methyalamino group | |
| 胶氨芹 | jiāo ān qín | ammoniacum or gum ammoniac (Dorema ammoniacum), resin has medical uses | |
| 脯氨酸 | pú ān suān | proline (Pro), an amino acid | |
| 缩氨酸 | suō ān suān | peptide (two or more amino acids linked by peptide bonds CO-NH) / same as 肽[tai4] | |
| 缬氨酸 | xié ān suān | valine (Val), an essential amino acid | |
| 乙氨基 | yǐ ān jī | ethylamino group | |
| 半胱氨酸 | bàn guāng ān suān | cysteine (Cys), an amino acid / mercaptoethyl amine | |
| 谷氨酸钠 | gǔ ān suān nà | monosodium glutamate (MSG) (E621) | |
| 异亮氨酸 | yì liàng ān suān | isoleucine (Ile), an essential amino acid | |
| 苯丙氨酸 | běn bǐng ān suān | phenylalanine (Phe), an essential amino acid | |
| 谷氨酰胺 | gǔ ān xiān àn | glutamine (Gln), an amino acid | |
| 甲硫氨酸 | jiǎ liú ān suān | methionine (Met), an essential amino acid | |
| 柳丁氨醇 | liǔ dīng ān chún | albuterol (also known as proventil, salbutamol, ventolin), an asthma drug | |
| 氰氨化钙 | qíng ān huà gài | calcium cyanamide | |
| 缩多氨酸 | suō duō ān suān | polypeptide, a chain of amino acids linked by peptide bonds CO-NH, a component of protein / same as 多肽[duo1 tai4] | |
| 天冬氨酸 | tiān dōng ān suān | aspartic acid (Asp), an amino acid | |
| 转氨基酶 | zhuǎn ān jī méi | amino transferase (enzyme) | |
| Cuprion氨浸出法 | Cuprionān jìn chū fǎ | Cuprion Ammoniacal Leach Process / Cuprion Ammoniacal Process / Cuprion process | |
| 甲替色氨酸 | jiǎ tì sè ān suān | abrin | |
| 神经氨酸酶 | shén jīng ān suān méi | neuraminidase (the N of virus such as bird flu H5N1) | |
| 丙氨酸转氨酶 | | alanine aminotransferase | |
| 对氨基苯丙酮 | duì ān jī běn bǐng tóng | p-aminopropiophenone | |
| 对乙酰氨基酚 | duì yǐ xiān ān jī fēn | paracetamol / acetaminophen | |
| 酪氨酸代谢病 | lào ān suān dài xiè bìng | (medicine) tyrosinosis | |
| 酪氨酸羟化酶 | lào ān suān qiǎng huà méi | tyrosine hydroxylase | |
| 天冬氨酸转氨酶 | | aspartate aminotransferase | |
| 聚氨酯泡沫塑料 | | polyurethane foam | |
| 催化还原氨浸法 | | Cuprion Ammoniacal Leach Process / Cuprion Ammoniacal Process / Cuprion process | |
| 二氨基叁硝基苯 | | diaminotrinitrobenzene | |
| 二甲氧甲苯丙氨 | èr jiǎ yǎng jiǎ běn bǐng ān | 2,5-dimethoxy-4-methylamphetamine / STP | |
| 三氨基三硝基苯 | sān ān jī sān xiāo jī běn | triaminotrinitrobenzene | |
| 亚硝氨基化合物 | yà xiāo ān jī huà hé wù | N-nitroso compounds | |
| N-乙酰邻氨基苯酸 | N-zhé xiān lín ān jī běn suān | N-acetylanthranilic acid | |
| 苯巴比妥-二乙基氨乙醇 | | phenobarbital diethylaminoethanol | |
| 苯丙胺P - 氨基苯基乙酸盐 | | amphetamine p-aminophenylacetate | |
| 阿洛巴比妥－氨基非那宗 | | allobarbital-aminophenazone | |
| 亚铜离子催化还原氨浸工艺 | | Cuprion Ammoniacal Leach Process / Cuprion Ammoniacal Process / Cuprion process | |
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