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A	B	C	D	E	F
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Y	Z

4-Methylumbelliferyl β-d-n,n’,n”-triacetylchitotrioside

4-Methylumbelliferyl β-d-n,n’,n”,n’’’-tetraacetylchitotetraoside

2’’-Nitrophenyl 2,2’,3,3’,4’-penta-o-acetyl-β-d-xylobioside

Benzoic acid, 4-[4-[(1-oxo-2-propenyl)oxy]butoxy]-, 2-methyl-1,4-phenylene ester

Trans-4-[[(2-amino-3,5-dibromophenyl)methylene]amino]cyclohexanol (ambroxol impurity c)

Boc-l-melys(z)-oh*dcha

Tungsten carbide

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