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A	B	C	D	E	F
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4-Iodoaniline-[13c6]

Isophorone-[2,4,4,6,6-d5]

4-Methoxybenzoic acid-[13c6]

3-Nitroaniline-[13c6]

Paclitaxel-[d5]

Resveratrol-[13c6]

Spermidine-[d8].tcl

Spermine-[d8].4hcl

Cis-urocanic acid-[13c3]

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