酸性黄17，Acid Yellow 17；analytical standard, ≥98.0% (HPLC)
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![图片 5-羟基-L-色氨酸，5-Hydroxy-L-tryptophan [L-5-HTP]；Pharmaceutical Secondary Standard; Certified Reference Material](https://www.bszh.cn/images/thumbs/0015479_5-l-5-hydroxy-l-tryptophan-l-5-htppharmaceutical-secondary-standard-certified-reference-material_32.png "显示明细 5-羟基-L-色氨酸，5-Hydroxy-L-tryptophan [L-5-HTP]；Pharmaceutical Secondary Standard; Certified Reference Material")
5-羟基-L-色氨酸，5-Hydroxy-L-tryptophan [L-5-HTP]；Pharmaceutical Secondary Standard; Certified Reference Material -
环庚三烯酚酮，Tropolone；98% -
![图片 1-溴丁烷 [溴代正丁烷]，1-Bromobutane；analytical standard, ≥99.5% (GC)](https://www.bszh.cn/images/thumbs/0007599_1-1-bromobutaneanalytical-standard-995-gc_32.png "显示明细 1-溴丁烷 [溴代正丁烷]，1-Bromobutane；analytical standard, ≥99.5% (GC)")
1-溴丁烷 [溴代正丁烷]，1-Bromobutane；analytical standard, ≥99.5% (GC) -
1,3-丙烷磺内酯，1,3-Propanesultone；≥99% -
异丙基甲基硫醚，isopropyl methyl sulphide；≥98.0%(GC) -
S系列单层中压玻璃层析柱，S-series single-layer medium-pressure glass chromatography columns
