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Conversion%mass purityqNMRNMR Impurities
Round result to

Scenario 1 — for determination of %yield of product in crude material, without needing to isolate.

Scenario 2 — for determination of product/SM purity, useful when material may contain salts or other species that don't appear in the ¹H NMR.

Internal standard (IS) — e.g. 1,4-dinitrobenzene
No. of protons in IS peak
H
Equivalents of IS (rel. to SM)
eq.
Product peak
Expected no. of protons in peak
H
Actual integral (calibrated)

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