Oxytocin: Chemical Properties
24 Citas PubMedRevisado por EspecialistasCertificado GMPÚltima Revisión: abril de 2026
Propiedades Químicas
| Molecular Formula | C₄₃H₆₆N₁₂O₁₂S₂ |
| Molecular Weight | 1007.19 g/mol |
| CAS Number | 50-56-6 |
| PubChem CID | 439302 |
| Sequence | Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂ |
| Structure | Nonapéptido cíclico; puente disulfuro Cys¹-Cys⁶; amida primaria en el extremo C-terminal |
| InChI Key | XNOPRXBHLZRZKH-DSZYJQQASA-NY |
| Synonyms | Pitocin, Syntocinon, Viatocinon, Induxin, 'hormona del amor' |
| Gene | OXT (cromosoma 20) |
| Precursor | Preprooxitocina (incluye la proteína transportadora neurofisina I) |
| Activity | 1 Unidad USP ≈ 1,68 µg de péptido puro |
| Plasma Half-Life | ~3–5 min IV; ~28 min LCR; ~2,25–4h IN (central) |
Identificadores
| Purity Standard | ≥95% por RP-HPLC |
| Identity Confirmation | ESI-MS [M+H]⁺ en m/z 1007,4 |
| Counter-Ion | Acetato (libre de TFA) |
| Preservatives | Clorobutanol 0,5%, tampón de ácido acético (pH 3,0–5,0) |
Referencias
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