Tools · Glutathione
Computed analytical data · Research use only
Glutathione mass & m/z.
Molecular formula C10H17N3O6S · Secretagogue & Regulatory. Mass and m/z below are computed from the verified molecular formula; the isoelectric point is computed only where the sequence permits.
Molecular mass
| Average molecular weight | 307.32 g/mol |
|---|---|
| Monoisotopic mass | 307.0838 Da |
Cross-check: matches the verified record (monoisotopic 307.0838 Da, average 307.33 g/mol). Average mass varies ~0.01–0.1 Da between atomic-weight tables.
ESI-MS m/z (positive mode)
| Charge state | m/z (monoisotopic) | m/z (average) |
|---|---|---|
| [M+1H]1+ | 308.0911 | 308.33 |
| [M+2H]2+ | 154.5492 | 154.67 |
| [M+3H]3+ | 103.3685 | 103.45 |
| [M+4H]4+ | 77.7782 | 77.84 |
Isoelectric point (pI)
Not computed
pI is not published for this compound — non-standard residues (γ-Glu, Cys, Gly). A residue-pKa pI calculation is only valid for a linear, unmodified peptide of the standard 20 L-amino acids with free termini; computing one here would be a fabricated value.
Method & provenance
- Mass: element arithmetic over the verified molecular formula. Monoisotopic uses most-abundant-isotope masses (CODATA/AME); average uses IUPAC 2021 standard atomic weights.
- ESI-MS m/z: positive-mode protonated ions [M+nH]n+, m/z = (M + n·1.007276) / n, from the computed monoisotopic (and average) mass.
- pI: computed only for linear, unmodified peptides of the standard 20 L-amino acids with free termini; otherwise flagged. Values are analytical/characterization data only — no efficacy, dosing, or human-use meaning.
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