BW901075 | 99.5%

X112050-25ml | Standard for GC, ≥99.9%(GC), xylene isomer and ethyl benzene

X112054-500ml | ACS, ≥98.5%, isomers plus ethylbenzene

X820584-5ml | Standard for GC，99.5%(GC)(二甲苯异构体+乙基苯）

X820584-25ml | Standard for GC，99.5%(GC)(二甲苯异构体+乙基苯）

NCS190289-1 | 见证书

NCS1600150-100A | 100μg/mL

NCS190289-2 | 见证书

NCS190289-3 | 见证书

NCS191801-1 | 见证书