| 分子式 | C19H42BrN |
硅藻土
编号:A62475 CAS号:68855-54-9 规格:500g 浓度:200目
N,N'-二苯基脲
编号:B28536-25g CAS号:102-07-8 规格:25g 浓度:≥98.0%
DPPH
编号:A22672-1g CAS号:1898-66-4 规格:1g
二甲基砷溶液标准物质
编号:GBW(E)083530 规格:5mL 浓度:21.5μg/g(以As计)
咪唑烷脲
编号:CCHM700215 CAS号:39236-46-9 规格:250mg 浓度:98.5%
N,N-二环已脲
编号:CCHM700282 CAS号:2387-23-7 规格:100mg 浓度:97.2%