32018R0248
GB 1886.354-2021
AWWA WQTC71458
Identification of 2-methoxy-3,5-dimethylpyrazine as the Obnoxious Compound at Trace Levels in Water Supplies
HG/T 5709\uff5e5712-2020
32018R0247
USP f101351
2-Methoxy-3(5)-methylpyrazine
USP f101235
2-Ethyl-3,5(6)-dimethylpyrazine
GB 1886.290-2016
USP f101350
2-Methoxy 3- (or 5- or 6-) Isopropyl Pyrazine
QB/T 2615-2011
QB/T 2750-2012
GB 1886.138-2015
GB 1886.295-2016
GB 1886.292-2016
GB 1886.291-2016
GB 29970-2013
32021R1916
GB/T 21322-2007
Determination of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food - High performance liquid chromatography method
QB/T 5063-2017
QB/T 2615-2003