MOTS‑C (short for Mitochondrial Open Reading Frame of the 12S rRNA‑c) is a mitochondria‑derived peptide that plays a role in cellular metabolism, energy balance, and metabolic signaling pathways. It is encoded within the mitochondrial genome and has been studied in laboratory settings for its potential influence on glucose metabolism, insulin sensitivity, mitochondrial function, and metabolic stress responses. Because of its connection to mitochondrial regulation, MOTS‑C is of interest in research on metabolic health, aging biology, and cellular energetics.

In research environments, MOTS‑C is typically supplied as a lyophilized (freeze‑dried) powder to maintain stability and simplify handling. Prior to use, the peptide is reconstituted with an appropriate sterile solvent (such as sterile water or bacteriostatic water), ensuring a controlled preparation for use in cell culture, biochemical assays, or metabolic studies.

The purity of MOTS‑C for research purposes is generally ≥ 95–98%, verified using analytical techniques such as High‑Performance Liquid Chromatography (HPLC) or Mass Spectrometry (MS). High purity is important to minimize contaminants and support consistent outcomes in mechanistic studies.

For storage, unopened MOTS‑C powder should be kept in a cool, dry place, and long‑term stability is best preserved at ‑20 °C or lower. After reconstitution, the peptide solution should be stored in the refrigerator (2 °C to 8 °C) and used within the timeframe recommended by the supplier. Repeated freeze/thaw cycles should be avoided, as temperature fluctuations can degrade the peptide.

A Certificate of Analysis (COA) is typically provided with each batch of MOTS‑C, confirming key quality metrics such as purity percentage, identity verification, molecular weight confirmation, and recommended storage conditions, along with batch/lot information for traceability and quality assurance.

MOTS‑C is intended strictly for laboratory research use and is not FDA‑approved for clinical, therapeutic, or human use outside regulated settings. It is used in studies exploring mitochondrial signaling, energy metabolism, metabolic stress responses, and related pathways.