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β-analine, β-氨基酸丙酸/250g/CAS:107-95-9'); document.write('¥300
BT-13906-2(旋转蒸发仪真空密封圈/埃朗/N-1100D)'); document.write('¥640
Sodium cyanoborohydride, 氰基硼氢化钠/100g/CAS:25895-60-7'); document.write('¥650