2,3-吡嗪二羧酸酐，2,3-Pyrazinedicarboxylic anhydride [PDBA]；97%
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![图片 乙基纤维素，Ethyl cellulose [EC]；viscosity 46 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl](https://www.bszh.cn/images/thumbs/0019177_ethyl-cellulose-ecviscosity-46-cp-5-in-tolueneethanol-8020lit-extent-of-labeling-48-ethoxyl_32.png "显示明细 乙基纤维素，Ethyl cellulose [EC]；viscosity 46 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl")
乙基纤维素，Ethyl cellulose [EC]；viscosity 46 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl -
1-庚烷磺酸钠，Sodium 1-heptanesulfonate；Vetec™, reagent grade -
![图片 氯化钯(II)，Palladium(II) chloride [PdCl2]；anhydrous, 59-60% palladium (Pd) basis](https://www.bszh.cn/images/thumbs/0017324_iipalladiumii-chloride-pdcl2anhydrous-59-60-palladium-pd-basis_32.png "显示明细 氯化钯(II)，Palladium(II) chloride [PdCl2]；anhydrous, 59-60% palladium (Pd) basis")
氯化钯(II)，Palladium(II) chloride [PdCl2]；anhydrous, 59-60% palladium (Pd) basis -
氧化铜，Copper(II) oxide；powder for analysis EMSURE® ACS, ≥99.0% (complexometric) -
N-(2-溴乙基)邻苯二甲酰亚胺，N-(2-Bromoethyl)phthalimide；95% -
![图片 2-噻吩甲酰三氟丙酮，2-Thenoyltrifluoroacetone [TTB, TTFA]；99%](https://www.bszh.cn/images/thumbs/0014734_2-2-thenoyltrifluoroacetone-ttb-ttfa99_32.jpeg "显示明细 2-噻吩甲酰三氟丙酮，2-Thenoyltrifluoroacetone [TTB, TTFA]；99%")
2-噻吩甲酰三氟丙酮，2-Thenoyltrifluoroacetone [TTB, TTFA]；99%
