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EVOHN

Science

The standard

Four positions govern every batch EVOHN releases, and four tools are built on top of them. Beneath both sits the reference library itself — 12 entries across 9 research domains, each compound verified by HPLC with its identity confirmed by mass spectrometry, and everything supplied for laboratory research only.

Domains
09
Compounds
12
Verification
HPLC + MS
Mean purity
99.52%

What we hold to

  1. 01

    Synthesis under a written specification

    Every compound is produced to a specification agreed before the first coupling: sequence, target purity, permitted impurity profile, residual solvent ceiling. A batch that misses the specification is not re-graded — it is rejected.

    How material is made
  2. 02

    Verification by a party with nothing to gain

    Identity and purity are established by an accredited laboratory outside the supply chain. In-process testing informs manufacturing decisions; it does not substitute for independent analysis, and the two are never conflated.

    Purity and identity
  3. 03

    Four instruments, four questions

    Chromatography for homogeneity, mass spectrometry for identity, Karl Fischer for water, gas chromatography for residual solvents. Each covers a blind spot in the others, and a certificate reporting only the first has described a quarter of the batch.

    Analytical methods
  4. 04

    The record travels with the batch

    A certificate names a batch, and the batch number is printed on the vial. Any result can be traced to the analysis that released the material it came from, and to the laboratory that signed it.

    Open the COA library

Research domains

Enquiries

Scoping a study?

Describe the endpoint you are measuring and the desk will say which domain the literature would point you at — including when the answer is a single compound rather than a set.