Search by compound name, intake code, or an alternate name from the vial. Every entry opens a reference page describing how that class of sample is analysed.
The exact theoretical mass an identity assessment is judged against depends on salt form and counter-ion, and it is established from reference data at scope review and printed on that sample’s certificate rather than published here. What every reference page does state is the mass scale, because that is the fact which actually decides how a sample is separated, detected, and read.
ScaleEntriesWhat it changes analytically
Small molecule14Not a peptide. Separated and detected as a small organic compound at a compound-specific wavelength, with a spectral signature of its own rather than a peptide-bond response.
Short peptide35Roughly under 1.5 kDa. Runs well on a standard reversed-phase gradient with low-ultraviolet detection, and gives clean, easily read comparisons against reference spectra.
Mid-length peptide19Roughly 1.5 to 5 kDa. Identity rests on a whole-spectrum comparison against reference data rather than a single reading, and related substances sit closer to the parent peak.
Protein scale8Above roughly 5 kDa, including recombinant and glycosylated material. Outside the assumptions of a routine peptide panel; accepted only after a specific method and reference discussion.
Multi-component blend10More than one expected analyte in one vial. Handled under blend analysis, where each declared component is assessed and overall purity is reported separately from component findings.
Diluent or excipient2No target peptide to identify. The meaningful measurements are bacterial endotoxin and any stated preservative concentration.
Don’t see your compound?
Absence from this list is not a refusal. Acceptance depends on sample form, matrix, requested method, and reference-standard availability. Send the details for a technical review.
