| B083 | AMVReverseTranscriptase(逆转录酶) | 300u/1000u | 680/1750 | Promega原装 |
| B084 | Amylopectin(支链淀粉) | 1g/5g/10g/25g原装 | 300/1390/2520/5730 | Sigma A8515 |
| B085 | Amylose(直链淀粉) | 250mg/1g/5g/25g原装 | 180/500/1790/7450 | Sigma A0512 |
| B086 | a-Naphthaleneaceticacid(NAA)(a-萘乙酸) | 5g/25g/100g原装 | 80/310/1030 | Sigma N0640 |
| B087 | apo-Transferrin(转铁蛋白) | 25mg/100mg/500mg原装 | 370/1220/5090 | Sigma T4382 |
| B089 | Aprotinin(抑蛋白酶肽,抑肽酶) | 6ku/25ku | 150/500 | Usbio分装 |
| B090 | ATP,2Na,3H2O5'-三磷酸腺苷(ATP,2Na,3H2O5'-三磷酸腺苷) | 1g/5g | 80/300 | Amresco分装 |
| B091 | Avidin(亲合素) | 1mg原装/2mg原装 | 290/480/850 | Sigma A9275 |
| B100 | Bacitracin(杆菌肽) | 500ku原装/250ku原装 | 870/950 | Amresco E952 |
| B101 | Baird-ParkerAgarBase | 2kg原装/500g原装 | 3450/930 | BD 276810 |
| B102 | BarbitalSodium(巴比妥酸钠) | 25g原装/100g原装 | 860/2190 | Sigma B0500 |
| B103 | BCIP | 100mg/250mg/1g/10g原装 | 220/520/1780/16270 | Amresco 0885 |
| B104 | BCIP/INT | 100ml原装 | 450 | Amresco E116 |
| B105 | BCIP/INT | 100ml原装 | 600 | Amresco E692 |
| B106 | b-Cyclodextran(b-环状糊精) | 5g/25g原装/100g原装 | 200/810/2350 | Sigma C4767 |
| B107 | BDliverVealAgar | 500g原装 | 1850 | BD 259100 |
| B108 | BeefExtract(牛肉膏) | 500g原装/500g | 1320/120 | BD211520/国产 |
| B109 | BeefPowder(牛肉粉) | 500g/北京产1kg | 1050/300 | OXOID LP0029 |
| B110 | Benzamidine,HCI(盐酸苯甲脒,盐酸苄脒) | 5g/25g | 100/400 | Amresco分装 |
| B111 | BenzamidineHCL(苄脒) | 5g/10g/25g/100g原装 | 160/240/590/2460 | Amresco 0616 |
| B113 | BES(N,N-双(2-羟乙基)-2-氨基乙磺酸) | 10g/25g/100g原装 | 160/350/970 | Sigma B9879 |
| B114 | Betaine(甜菜碱) | 50g/100g/1kg原装 | 120/190/1590 | Sigma B2629 |
| B115 | BetaineHCl(甜菜碱盐酸盐) | 100g/250g/1kg原装 | 120/220/780 | Amresco K186 |
| B116 | b-Glycerophosphatedisodium(b-甘油磷酸钠) | 10g/25g/100g/500g原装 | 320/650/2500/9300 | Sigma G6251 |
| B118 | Bialaphos(除草剂) | 10mg/25mg/100mg | 350/850/3200 | USA |