| B645 | SerumPowder(消化血清粉) | 1kg | 680 | 国产 |
| B646 | Silane（Bind--Silane亲和硅烷） | 25ml 原装 | 1410 | Pharmacia17133001 |
| B647 | Silane（Repel-Silane疏水硅烷） | 500ml原装 | 1380 | Pharmacia17133201 |
| B648 | Snailase(蜗牛酶) | 1g/10g/100g/1kg | 50/300/2700/18000 | 国产 |
| B649 | SOD(超氧化物歧化酶(6000U/mg)) | 100mg | 260 | 国产 |
| B650 | SodiumAzide(叠氮钠) | 50g/250g/5kg原装 | 110/480/9250 | Amresco 0639 |
| B652 | SodiumBorate(四硼酸钠) | 100g/500g/2.5kgX4原装 | 180/610/3250 | Sigma S9640 |
| B653 | SodiumChloride(氯化钠) | 500g/1kg/5kg/5kg原装 | 120/200/880/1050 | Amresco X190 |
| B654 | SodiumPhosphate(磷酸二氢钠) | 500g | 200 | Amresco分装 |
| B655 | SodiumPhosphate(磷酸氢二钠) | 500g | 280 | Amresco分装 |
| B656 | Spectinomycin(壮观霉素) | 500mg原装/1g/5g原装 | 120/180/780 | INALCO1758-9311 |
| B657 | Spermidine(亚精胺，精脒) | 1g/5g/25g原装 | 310/1400/6340 | Sigma S0266 |
| B659 | Spermidine3HCl(亚精胺三盐酸) | 1g/5g原装/25g原装 | 320/1250/3880 | Sigma S2501 |
| B660 | Spermine,4HCI(精胺) | 500mg/1g | 190/350 | Sigma分装 |
| B661 | Spermine4HCl(精胺四盐酸) | 250mg/1g/5g原装 | 210/680/2250 | Sigma S2876 |
| B662 | StarchPotato(马铃薯淀粉) | 100g/2kg原装 | 290/1940 | Sigma S4251 |
| B663 | StarchSoluble(可溶性淀粉) | 100g/250g/1kg原装 | 170/360/1250 | Sigma S9765 |
| B664 | Streptavidin(链亲合素) | 1mg 原装 | 700 | Amresco E497 |
| B665 | StreptomycinSulfate(硫酸链霉素) | 25g原装/50g/100g原装 | 110/170/340 | INALCO1758-9319 |
| B666 | Streptozocin（链脲佐菌素） | 100mg/500mg | 280/1400 | Sigma分装 |
| B667 | SuccinicacidSodium(琥珀酸钠(丁二酸钠)) | 25g/100g/500g/1kg原装 | 110/220/990/1820 | Sigma S2378 |
| B668 | SucroseUltraPure(RNase,DNaseFree)(蔗糖) | 250g/500g/1kg/5kg原装 | 100/180/240/1050 | Amresco 0335 |
| B669 | SuperscriptII(逆转录酶) | 2000u/10000u | 890/2900 | Invitrogen原装 |
| B670 | SYBRGreenI | 50ul/50ul*5 | 250/1150 | 国产 |
| B680 | TAE(50X)溶液 | 500ml | 100 | Sigma原料自产 |
| B681 | TAPS(N-三(羟甲基)甲基-3-氨基丙烷磺酸) | 25g/100g原装 | 190/630 | Amresco J562 |
| B683 | TAPSO(N-三(羟甲基)甲氨基-2-羟基丙烷磺酸) | 10g/100g原装 | 110/820 | Sigma T9269 |
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