Tools · IGF-1 LR3
Computed analytical data · Research use only
IGF-1 LR3 mass & m/z.
Molecular formula C400H619N111O115S9 · 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 | 9111.50 g/mol |
|---|---|
| Monoisotopic mass | 9105.3487 Da |
Average mass varies ~0.01–0.1 Da between atomic-weight tables; monoisotopic uses most-abundant-isotope masses.
ESI-MS m/z (positive mode)
| Charge state | m/z (monoisotopic) | m/z (average) |
|---|---|---|
| [M+1H]1+ | 9106.3560 | 9112.51 |
| [M+2H]2+ | 4553.6816 | 4556.76 |
| [M+3H]3+ | 3036.1235 | 3038.17 |
| [M+4H]4+ | 2277.3445 | 2278.88 |
| [M+5H]5+ | 1822.0770 | 1823.31 |
| [M+6H]6+ | 1518.5654 | 1519.59 |
| [M+7H]7+ | 1301.7714 | 1302.65 |
| [M+8H]8+ | 1139.1759 | 1139.94 |
| [M+9H]9+ | 1012.7127 | 1013.40 |
| [M+10H]10+ | 911.5421 | 912.16 |
Isoelectric point (pI)
Not computed
pI is not published for this compound — folded protein — pI not computed by the small-peptide pipeline. 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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