usb试剂 22638 1 LT TRIS/HCL PH 8- 1M ULTRAPURE 22638 100 ML TRIS/HCL PH 8- 1M ULTRAPURE

usb试剂 22561 1 KG TRICINE 22561 100 GM TRICINE

usb试剂 22292 1000 UN THROMBIN HUMAN LYO 1000 NIH UN/VL

usb试剂 22290 1 KG L-THREONINE 22290 10 GM L-THREONINE

usb试剂 21938 1 KG SUCROSE ULTRAPURE 21938 5 KG SUCROSE ULTRAPURE

usb试剂 21931 2.5 KG SUCROSE ACS GRADE 21931 500 GM SUCROSE ACS GRADE

usb试剂 21900 1 KG SUCCINIC ACID FREE ACID 21900 250 GM SUCCINIC ACID FREE ACID

usb试剂 21710 1 KG D-SORBITOL 21710 5 KG D-SORBITOL

usb试剂 21618 1 KG SODIUM CHLORIDE ACS GRADE 21618 10 KG SODIUM CHLORIDE ACS GRADE

usb试剂 21610 100 GM SODIUM AZIDE 21610 500 GM SODIUM AZIDE