SH/T 1822-2019
1,2,4,5-Tetramethylbenzene
32015D1873
QB/T 2753-2012
32018D1463
HG/T 5845\uff5e5848-2021
SH/T 1779-2014
GB 1886.293-2016
HG/T 5485-2018
2-Methoxy-5-methylaniline-4-sulfonylethyl hydrogen sulfate ester
QB/T 5058-2017
Fragrance- 2,2-dimethyl-3-(4-ethylphenyl) propionaldehyde
32015D1875
32018R0240
HG/T 3803-2006
HG/T 3803-2005
Photographic chemicals-4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate
SN/T 3153-2012
Determination of N,N-bis(2-hydroxyethyl)-p-phenylenediamine,N,N-dimethyl-p-phenylenediamine,N,N-diethyl-p-phenylenediamine,N-phenyl-p-phenylenediamine and their salts in oxidative hair dyes for export-High performance liquid chromatography
HG/T 2417-1993
HG/T 6314-2024
HG/T 5501\uff5e5504-2018
GB 5009.282-2020
32017D2170
GB/T 23296.24-2009
Food contact materials - Polymer - Determination of 1,2-dihydroxybenzene,1,3-dihydroxybenzene,1,4-dihydroxybenzene,4,4'-dihydroxybenzophenone and 4,4'dihydroxybiphenyl in food simulants - High performance liquid chromatography