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Molecular structure determination of impurities: When electron diffraction makes the difference

Impurity detection is often straightforward.
Impurity structure determination is not.

When conventional techniques (NMR, MS, XRPD) reach their limits, especially with trace-level crystalline impurities or extremely small crystals, electron diffraction can provide the missing piece.

At Holodiag, electron diffraction enables:
✔️ Molecular structure elucidation from sub-micron crystals
✔️ Absolute configuration determination
✔️ Clear differentiation between closely related isomers
✔️ Structural confirmation when material is scarce

With minimal sample requirements and rapid data acquisition, Electron Diffraction becomes a powerful tool for resolving complex impurity questions that can impact regulatory submissions, process understanding, and product robustness.

Because understanding an impurity is not just about detecting it, it’s about knowing exactly what it is.

Let’s discuss your most challenging structural questions.

impurities molecularstructure electrondiffraction pharma Holodiag

 

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