MOTS-c mass & m/z.

Molecular formula C101H152N28O22S2 · Secretagogue & Regulatory. Mass and m/z below are computed from the verified molecular formula; the isoelectric point is computed only where the sequence permits.

Compound page →Open dataset →Sequence calculator →

Molecular mass

Computed from the verified molecular formula.
Average molecular weight	2174.62 g/mol
Monoisotopic mass	2173.1077 Da

Cross-check: matches the verified record (monoisotopic 2173.1077 Da, average 2174.64 g/mol). Average mass varies ~0.01–0.1 Da between atomic-weight tables.

ESI-MS m/z (positive mode)

Predicted protonated ion series [M+nH]ⁿ⁺, m/z = (M + n·1.007276) / n.
Charge state	m/z (monoisotopic)	m/z (average)
[M+1H]1+	2174.1150	2175.63
[M+2H]2+	1087.5611	1088.32
[M+3H]3+	725.3765	725.88
[M+4H]4+	544.2842	544.66

Isoelectric point (pI)

10.64

Method: Henderson–Hasselbalch net-charge bisection. pKa set: EMBOSS. Assumptions: Linear peptide, free N- and C-termini, standard 20 L-amino acids, no post-translational modifications. Published pKa sets differ, so treat pI as method-dependent (±~0.3).

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.

Related resources

More secretagogue & regulatory analytics

Analytical reference