usb试剂 21486 1 KG DL-SERINE - NON ANIMAL 21486 100 GM DL-SERINE - NON ANIMAL

usb试剂 21190 1 KG RNA SODIUM- APPROX. 94% 21190 100 GM RNA SODIUM- APPROX. 94%

usb试剂 21060 1 KG RAFFINOSE 21060 100 GM RAFFINOSE

usb试剂 20605 1 GA TWEEN 20 20605 500 ML TWEEN 20

usb试剂 20100 1 KG DL-PHENYLALANINE 20100 100 GM DL-PHENYLALANINE

usb试剂 20048 1 LB BACTERIOLOGICAL PEPTONE POWDER

usb试剂 20037 25 MG PEPSTATIN A POWDER 20037 5 MG PEPSTATIN A POWDER

usb试剂 20015 1 KG PEPSIN 1:10000 PORCINE STOMACH PWD

usb试剂 20010 1 GM PEPSIN: PORCINE MUCOSA LYO.PWD.

usb试剂 19972 1 KG PEG-6000 （POLYETHYLENE GLYCOL 6000）