| 1 | 998-00-5 | 四(2-甲丙基)-μ-氧二铝 | TETRAISOBUTYLDIALUMINOXANE | C16H36Al2O | 催化剂 | |
| 2 | 998-06-1 | 1,2-二亚油酰磷脂酰胆碱(DLinPC) | 1,2-DILINOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE | C44H80NO8P | 脂类;高纯度合成磷脂 | 脂类;高纯度合成磷脂 |
| 3 | 998-07-2 | 二肉豆蔻酰基磷脂酰乙醇胺 | 1,2-dimyristoyl-sn-glycero-3-phospho-ethanolamine | C33H66NO8P | 有机原料;酚醇化合物 | |
| 4 | 998-09-4 | | 2-Propenal, 3-(diethylamino)-2-methyl- | C8H15NO | | |
| 5 | 998-12-9 | 3-(羟甲基)-1,5-戊二醇 | 3-hydroxymethylpentane-1,5-diol | C6H14O3 | | |
| 6 | 998-14-1 | 二丙基(乙基)硅烷 | Silane, ethyldipropyl- | C8H20Si | | |
| 7 | 998-26-5 | | Thioboric acid (H3BS3), triethyl ester (8CI,9CI) | C6H15BS3 | | |
| 8 | 998-27-6 | | Germane, tripropyl- | C9H22Ge | | |
| 9 | 998-29-8 | 三正丙基硅烷 | Tri-n-propylsilane | C9H22Si | 有机硅;硅烷试剂;有机化工;医药生物化工;硅烷类化合物 | |
| 10 | 998-30-1 | 三乙氧基硅烷 | Triethoxysilane | C6H16O3Si | 有机硅;有机原料;有机化工;含氢硅烷;硅化合物;烷基硅烷;医药生物化工;有机化工原料;有机金属试剂;催化剂及助剂 | |
| 11 | 998-35-6 | 5-propylnonane | 5-propylnonane | C12H26 | | |
| 12 | 998-39-0 | 三正丁基氢化锗 | Tri-n-Butylgermanium Hydride | C12H28Ge | 有机锗;化工原料;金属有机物 | |
| 13 | 998-40-3 | 三丁基膦 | Tri-n-butylphosphine | C12H27P | 膦配体;有机磷;杂环类;有机膦;膦试剂;有机砌块;有机配体;磷化合物;有机膦配体;有机膦化合物 | 催化剂;石油化工 |
| 14 | 998-41-4 | 三丁基硅烷 | tributylsilane | C12H28Si | 有机硅;硅烷试剂;硅烷类化合物 | |
| 15 | 998-76-5 | 1,2-二碘戊烷 | 1,2-diiodopentane | C5H10I2 | | |
| 16 | 998-86-7 | Carbamic acid, (trimethylsilyl)-, ethyl ester | Carbamic acid, (trimethylsilyl)-, ethyl ester | C6H15NO2Si | | |
| 17 | 998-90-3 | 3-[[(Methyl-aci-nitro)acetyl]amino]propenamide | 3-[[(Methyl-aci-nitro)acetyl]amino]propenamide | C6H9N3O4 | | |
| 18 | 998-91-4 | 3-乙氧基-2-丁炔羧酸乙酯 | Ethyl 3-Ethoxy-2-Butenoate | C8H14O3 | | |
| 19 | 998-93-6 | 4-溴庚烷 | 4-Bromoheptane | C7H15Br | | |
| 20 | 998-94-7 | 4-METHYL-1,5-HEPTADIENE | 4-METHYL-1,5-HEPTADIENE | C8H14 | | |
| 21 | 998-95-8 | 4-CHLOROHEPTANE | 4-CHLOROHEPTANE | C7H15Cl | | |
| 22 | 998-97-0 | 替米沙坦杂质44 | Butyrimidic acid ethyl ester | C6H13NO | | |
| 23 | 998-98-1 | | Carbamothioic acid, N-ethyl-, O-ethyl ester | C5H11NOS | | |