Oxytocin is a cyclic nonapeptide (9 amino acids) with a molecular weight of ~1007 g/mol, supplied as a lyophilized powder for research or pharmaceutical use. It is highly pure (≥98%), stable under cold storage, and available in multiple vial sizes for catalog or laboratory applications.

KEY FEATURES 

Peptide Type: Cyclic nonapeptide hormone (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂).

Biological Role: Stimulates uterine contractions, lactation, and modulates social bonding.

Receptor Target: Oxytocin receptor (OXTR), with secondary affinity for vasopressin receptors.

Applications:

Clinical: Labor induction, postpartum hemorrhage prevention (Pitocin).

Research: Neuroscience, behavioral studies, cell signaling, stress buffering.

TECHNICAL SPECIFICATIONS 

CAS NUMBER : 50-56-6

Molecule Formula : C43 H66 N12 O12 S2

Molecule Weight: 10007.19 g/mol

Sequence length: 9amino acids (cyclic, disulfide bridge, Cys1-Cys6)

Appearance : White/off-white lyophilized powder 

Purity: +98% (HPLC)

Peptide content : +95%(amino acid analysis)

Endotoxin level : 1.0 EU/mg

Solubility: Water dilute acetic acid, saline (1mg/ml)

ph(1% solution) 3.5-5.0

storage(lyophilized): - 20degree to 80degree, desiccated , light -protected

Shelf life: 36 months (lyophilized)

Light sensitivity : Moderate, store in amber vials

AVAILABLE CONFIGURATIONS 

Research grade vials :

mg, 5 mg, 10 mg lyophilized powder

Pharmaceutical Reference Standards:

USP Oxytocin reference standard for assay validation.

Bulk Supply Options:

Custom pack sizes for laboratories and distributors.

Formulation Options (Research Use):

Intranasal, IV, IP, SC solutions prepared from lyophilized stock.

Species Source (Research):

Synthetic (most common), bovine/rabbit derivatives available in some catalogs.