| 分子式 | |
| 其他事项 | 4.120043Sodium hydroxidepellets, for analysis, ACS, ISONaOH M.=40.00CAS No. 1310-73-2 UN 1823 Minimum assay (Acidim.) 98.0%Maximum limit of impuritiesInsoluble matter in H2O 0.005%Chloride (Cl) 0.001% Nitrogen compounds (as N) 0.0005%Phosphate (PO4) 0.0005%Sulfate (SO4) 0.002%Silicate (SiO2) 0.001%Carbonate (as Na2CO3) 1.0% Heavy metals (as Pb) 0.0005%Al 0.0005% Hg 0.00001%As 0.00004% K 0.02%Ca 0.0005% Mg 0.0005%Cd 0.0005% Mn 0.0005%Co 0.0005% Ni 0.0005%Cu 0.0005% Pb 0.0005%Fe 0.0005% Zn 0.001% |
甲醇中对苯二亚甲基二樟脑磺酸标准物质
编号:BW902649-1000-A CAS号:90457-82-2 规格:1mL 浓度:1000μg/mL
辛菌胺单一异构体
编号:1ST21341 CAS号:57413-95-3 规格:10mg 浓度:99.6%
Stuart运送培养基
编号:HB8552 规格:250g 浓度:BR
异钩藤碱
编号:DY0017-0020 CAS号:6859-01-4 规格:20mg 浓度:HPLC≥98%
水中N-ε-羧乙基-L-赖氨酸溶液
编号:1ST160848-100W CAS号:5746-03-2 规格:1mL 浓度:100μg/mL
羧甲基赖氨酸检测标准品
编号:ZKAF-5206 CAS号:5746-04-3 规格:1mg 浓度:97.6%