32018R0248
GB 1886.290-2016
USP f101235
2-Ethyl-3,5(6)-dimethylpyrazine
USP f101250
2-Ethyl-3-methylpyrazine
AWWA WQTC71458
Identification of 2-methoxy-3,5-dimethylpyrazine as the Obnoxious Compound at Trace Levels in Water Supplies
HG/T 5484\uff5e5487-2018
USP f101385
2-Methylpyrazine
T/NAIA 059-2021
32018R0247
USP f101351
2-Methoxy-3(5)-methylpyrazine
UNE 84692:2006
Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{(4-(2-ethyl-hexyloxy)-2-hydroxy)-phenyl}-6-(4-methoxyphenyl) and 2,2-methylene-bis-6-(2H-benzotriazol-2-yl)-4-(tetramethyl-butyl)-1,1,3,3-phenol. Determination by liquid chromatography.
QB/T 2751-2012
UNE 84690:2006
Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{[4-(2-ethyl-hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl).
QB/T 2748-2012
QB/T 2749-2012
QB/T 2750-2012
USP f101350
2-Methoxy 3- (or 5- or 6-) Isopropyl Pyrazine
QB/T 2751-2005
Methyl pyrazine
GB 1886.295-2016
GB 1886.292-2016