| 1 | 821-00-1 | | Sorbamide | C6H9NO | | |
| 2 | 821-06-7 | 反式-1,4-二溴-2-丁烯 | trans-1,4-dibromo-2-butene | C4H6Br2 | 原料;其他;卤代物;卤代烃;中间体;有机砌块;阿利克仑;医用原料;有机原料;兽药原料 | |
| 3 | 821-07-8 | NISTC821078 | NISTC821078 | C6H8 | | |
| 4 | 821-08-9 | 1,5-己二烯-3-炔 | 1,5-Hexadien-3-yne | C6H6 | | |
| 5 | 821-09-0 | 4-戊烯-1-醇 | 4-Penten-1-ol | C5H10O | 烯烃;脂肪烃;有机砌块;通用试剂;有机化学;化工材料;化工原料;医药化工、电子材料 | |
| 6 | 821-10-3 | 1,4-二氯-2-丁炔 | 1,4-Dichloro-2-butyne | C4H4Cl2 | 炔烃;卤代物;通用试剂;有机砌块 | |
| 7 | 821-11-4 | 反-2-丁烯-1,4-二醇 | (2E)-2-Butene-1,4-diol | C4H8O2 | 醇;单体;材料化学 | |
| 8 | 821-13-6 | Allyl azide | Allyl azide | C3H5N3 | | |
| 9 | 821-14-7 | diethyldiazene | diethyldiazene | C4H10N2 | | |
| 10 | 821-16-9 | Hexadecanoic acid 3-hydroxypropyl ester | Hexadecanoic acid 3-hydroxypropyl ester | C19H38O3 | | |
| 11 | 821-17-0 | Oleic acid 3-hydroxypropyl ester | Oleic acid 3-hydroxypropyl ester | C21H40O3 | | |
| 12 | 821-25-0 | 1,1-dichloroheptane | 1,1-dichloroheptane | 821-25-0 | | |
| 13 | 821-33-0 | 二羟二丁基醚 | 4,4'-oxybisbutan-2-ol | C8H18O3 | 有机化工原料 | |
| 14 | 821-34-1 | | Propanoic acid, 3,3'-oxybis-, disodium salt | C6H8Na2O5 | | |
| 15 | 821-38-5 | 十四烷二酸 | 1,12-Dodecanedicarboxylic acid | C14H26O4 | 烷;羧酸;原料;二元酸;通用试剂;有机砌块;医药原料;化工原料;化工中间体;大化工原料 | |
| 16 | 821-41-0 | 5-己烯-1-醇 | 5-Hexen-1-ol | C6H12O | 醇;醇类;定制;脂肪烃;通用试剂;化工原料;医药中间体;有机化工原料 | |
| 17 | 821-42-1 | Glutaconaldehyde | Glutaconaldehyde | | | |
| 18 | 821-44-3 | 1-Penten-3-yne, 5-methoxy- | 1-Penten-3-yne, 5-methoxy- | C6H8O | | |
| 19 | 821-48-7 | 二(2-氯乙基)胺盐酸盐 | Bis(2-chloroethyl)amine hydrochloride | C4H9Cl2N·HCl | 无机盐;无机化工 | 医药中间体 |
| 20 | 821-55-6 | 2-壬酮 | 2-Nonanone | C9H18O | 酮;原料;化工;标准品;对照品;通用试剂;香精香料;有机砌块;日化原料;化工原料 | |
| 21 | 821-57-8 | 7-氯庚酸 | 7-CHLOROHEPTANOIC ACID | C7H13ClO2 | | |
| 22 | 821-60-3 | 1,3-Butadiene-1,4-dicarbonitrile | 1,3-Butadiene-1,4-dicarbonitrile | C6H4N2 | | |
| 23 | 821-62-5 | | 1-Pentene, 5-azido- | C5H9N3 | | |
| 24 | 821-67-0 | Di(n-propyl)diazene | Di(n-propyl)diazene | | | |
| 25 | 821-69-2 | 1,3-propanediyl dioleate | 1,3-propanediyl dioleate | C39H72O4 | | |
| 26 | 821-74-9 | 4,5-Nonadiene | 4,5-Nonadiene | C9H16 | | |
| 27 | 821-76-1 | 1,7-二氯庚烷 | 1,7-dichloroheptane | C7H14Cl2 | 医药原料;化工原料 | |
| 28 | 821-77-2 | 6-azidohex-1-ene | 6-azidohex-1-ene | C6H11N3 | | |
| 29 | 821-91-0 | 3-(DODECYLAMINO)PROPANE-1,2-DIOL | 3-(dodecylamino)propane-1,2-diol | C15H33NO2 | 有机化工原料 | |
| 30 | 821-93-2 | | Tridecane, 1,1-dichloro- | C13H26Cl2 | | |
| 31 | 821-95-4 | 1-十一烯 | 1-Undecene | C11H22 | 烯烃;标准品;脂肪烃;专业烯烃;脂肪烃类;有机化工原料;气相色谱标准品(色标) | |
| 32 | 821-96-5 | (Z)-2-Undecene | (Z)-2-Undecene | C11H22 | | |
| 33 | 821-97-6 | (Z)-3-Undecene | (Z)-3-Undecene | | | |
| 34 | 821-98-7 | NISTC821987 | NISTC821987 | C11H22 | | |
| 35 | 821-99-8 | 1,9-二氯壬烷 | 1,9-Dichlorononane | C9H18Cl2 | 卤代物;大化工;医药原料;化工原料;医药中间体;合成中间体;有机化工原料 | |