Research reference library
Chemical identity, analytical terminology and the existing Eon compound monographs, organized for research documentation.
For research use only. Not for human or veterinary use.
5-Amino-1MQ
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Existing compound referenceARA-290
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Existing compound referenceBPC-157 / TB-500
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Existing compound referenceBPC-157
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Existing compound referenceCJC-1295 DAC
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Existing compound referenceCJC-1295
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Existing compound referenceCJC / IPA Blend
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Existing compound referenceDSIP
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Existing compound referenceEpithalon
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Existing compound referenceGHK-Cu
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Existing compound referenceGlow
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Existing compound referenceGLP-1 S
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Existing compound referenceIGF-1 LR3
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Existing compound referenceIpamorelin
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Existing compound referenceKisspeptin
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Existing compound referenceKLOW
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Existing compound referenceKPV
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Existing compound referenceL-Glutathione
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Existing compound referenceMelanotan II
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Existing compound referenceNAD+
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Existing compound referencePinealon
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Existing compound referencePT-141
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Existing compound referenceGLP-3 RT
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Existing compound referenceSelank
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Existing compound referenceSemax
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Existing compound referenceSermorelin
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Existing compound referenceSS-31
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Existing compound referenceTB-500
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Existing compound referenceTesamorelin
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Existing compound referenceThymosin Alpha-1
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Existing compound referenceGLP-2 TZ
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referencePeptide bonds
A peptide bond is the amide connection between amino acid residues. A sequence records residue order, while a complete identity record also accou...
referenceReading an amino acid sequence
An amino acid sequence lists residues in their stated order, conventionally from the N terminus toward the C terminus. One-letter and three-lette...
referenceN-terminal peptide modifications
An N-terminal modification changes the chemistry at the amino end of a peptide. It belongs in the identity record alongside the residue sequence ...
referenceC-terminal amidation
C-terminal amidation describes an amide at the carboxyl end of a peptide. An amidated peptide and its corresponding free-acid form are distinct c...
referenceD and L amino acid notation
D and L notation describes amino acid stereochemistry. It is not a purity grade, and the two labels do not indicate that one material is stronger...
referenceCyclic peptide structures
A cyclic peptide contains a ring connection involving its peptide structure. A linear sequence string may list its residues without fully describ...
referenceDisulfide bonds in peptide identity
A disulfide bond connects sulfur-containing groups. For a peptide with multiple possible connections, identifying which residues are connected is...
referencePeptide salts and counterions
A peptide salt includes counterions associated with the charged peptide. Counterions are not amino acid residues and should be documented separat...
referencePeptide molecular formulas
A molecular formula identifies the elements and their counts for a specified chemical entity. It does not by itself describe the order of residue...
referencePeptide molecular weight
Molecular-weight information is meaningful only when the chemical form and mass convention are clear. A sequence length is not enough to calculat...
referenceExact mass and average mass
Exact mass is calculated for a specified isotopic composition. It differs from an average mass based on isotopic abundances, and it is not a syno...
referenceMass-to-charge ratio
Mass spectrometry distinguishes ions by mass-to-charge ratio, written m/z. Interpreting a peak requires an ion assignment and charge information,...
referenceIsotope patterns in mass spectrometry
An isotope pattern is the distribution of related mass-spectral signals associated with isotopic composition. It supplies information beyond the ...
referenceCAS identifiers for research compounds
A CAS Registry Number identifies a substance in the CAS registry. It is an identity reference, not a measurement of purity, a certificate identif...
referenceHPLC peak-area purity
HPLC peak-area purity summarizes selected chromatographic signals under the reported method. It is not automatically a measurement of the total p...
referenceChromatographic retention time
Retention time describes when a component elutes under specified chromatographic conditions. It is a method-dependent observation rather than a u...
referenceChromatographic resolution
Chromatographic resolution describes the separation of neighboring peaks. A purity interpretation depends in part on whether relevant components ...
referenceLC-MS identity evidence
LC-MS combines chromatographic separation with mass-spectral information. An identity statement should be read in terms of the observed signals, ...
referencePeptide content and purity
Peptide content describes an amount or fraction of peptide on a specified measurement basis. It should not be treated as interchangeable with chr...
referenceWater content in analytical reports
Water content is a separately measured property when a report includes it. Its interpretation depends on the method and whether the result is exp...
referenceResidual solvent measurements
A residual-solvent result concerns named solvent species measured by a stated method. It is separate from a peptide identity assignment and from ...
referenceEndotoxin reporting units
An endotoxin result must be read with its reported units, method and sample basis. It concerns an analytical endpoint distinct from peptide ident...
referenceScope of sterility testing
A sterility-test statement applies to the sample and conditions described by that test. It is a different statement from a chemical identity resu...
referenceCertificate report identifiers
A certificate report identifier distinguishes a document issued by a laboratory. It is separate from the compound name and from a supplier catalo...
referenceMeasurement uncertainty
Measurement uncertainty describes the dispersion associated with a measured quantity under a stated evaluation. It is not the same as an acceptan...
referenceLimit of detection
A detection limit characterizes the ability of a method to distinguish an analyte signal under specified conditions. A result below a limit is no...
referenceLimit of quantitation
A quantitation limit concerns the level at which a method can report a quantitative result under its stated performance criteria. Detecting a sig...
referenceAnalytical reference materials
An analytical reference material supports measurement tasks through documented properties and intended use. A research catalog item should not be...