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A	B	C	D	E	F
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Benzimidazole-4,5,6,7-d4

2-Mercaptobenzimidazole-4,5,6,7-d4

Ethyl 4-aminobenzoate-2,3,5,6-d4

Ethyl-d5 4-aminobenzoate

Benzo[k]fluoranthene-d12

Benzoic-3,5-d2 acid

(±)-benzoin-d10 (diphenyl-d10)

Benzo[g,h,i]perylene-d12

Benzophenone-13c1 (carbonyl-13c)

Coumarin-5,6,7,8-d4

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