Oxytocin

Oxytocin is supplied as a laboratory research reference material for in-vitro and laboratory research use only. This cyclic nonapeptide is characterized by molecular formula C43H66N12O12S2, molecular weight 1007.19 g/mol, monoisotopic mass 1006.4365 Da, CAS 50-56-6, and amino-acid sequence CYIQNCPLG-NH2 (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2). The structure features a disulfide bridge between Cys1 and Cys6, forming a six-residue macrocycle with a three-residue acyclic tail terminating in a C-terminal glycinamide, a topology that makes Oxytocin a canonical reference scaffold for disulfide-constrained peptide analytical work.

For unambiguous identification in cheminformatics workflows, the material is indexed by PubChem CID 439302 and InChIKey XNOPRXBHLZRZKH-DSZYJQQASA-N, with an isomeric SMILES of CCC(C)C1C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)N1)CC2=CC=C(C=C2)O)N)C(=O)N3CCCC3C(=O)NC(CC(C)C)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N. The synthetic Oxytocin peptide is presented as a white to off-white lyophilized powder at not less than 98% purity by HPLC, with identity and purity documented on the lot-specific Certificate of Analysis available on request.

Published scientific literature has examined Oxytocin in preclinical research, and the compound is a widely referenced analytical benchmark for method development in reversed-phase HPLC, LC-MS, high-resolution mass spectrometry, circular dichroism, and NMR characterization of small cyclic peptides. Formulators and analysts working with Oxytocin as a reference standard typically account for its disulfide sensitivity to reducing agents, elevated temperature, and prolonged light exposure, and its two ionizable groups (the Tyr phenolic hydroxyl and the free N-terminal amine) when developing chromatographic or stability-indicating assays.

PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding this material and provides no administration or dosing guidance. This material is not a drug, supplement, cosmetic, or food, and is not intended for human or veterinary use, injection, or ingestion. It is offered strictly as a characterized synthetic reference substance for qualified laboratory investigators.

Supplied as a lyophilized (freeze-dried) powder in a sealed vial. A research reference material - not a finished product and not a delivery device. Net contents per unit are shown in the product options.

Store the sealed lyophilized powder at -20 C, protected from light and moisture. After reconstitution for laboratory use, keep cold and use promptly. Handle per standard laboratory practice; a Safety Data Sheet (SDS) is available on request.

This material is sold to qualified laboratory and research buyers for lawful research use only. It is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. By purchasing, you confirm you are 21 or older and will use this material only for lawful laboratory research.