Oxytocin analysis

The Oxytocin Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of oxytocin in lyophilised vials and raw active pharmaceutical ingredient (API) powders.

For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.

About Oxytocin

Oxytocin is a naturally occurring peptide hormone composed of nine amino acids. It is produced in the hypothalamus and released into the circulation from the posterior pituitary gland.

Oxytocin is best known for its role in uterine contractions during childbirth and milk ejection during breastfeeding. It also acts within the nervous system and has been studied in connection with social behaviour, stress responses, and other physiological processes.

Key Features

• Targeted identification and quantification of oxytocin
• Determination of peptide purity
• Suitable for lyophilised vials and raw API powders
• Results for lyophilised samples reported in mg per vial and peptide purity
• Alternative result format for raw API powders includes purity in % (m/m) and peptide purity
• Minimum sample amount of one whole unopened vial with lyophilisate
• Minimum sample amount of 30 mg for raw API powders
• Average turnaround time of 7 business days

Analysis Parameters

• Target compound: Oxytocin
• CAS number: 50-56-6
• Molecular weight: 1007 Da
• Sequence: H-Cys(1)-Tyr-Ile-Gln-Asn-Cys(1)-Pro-Leu-Gly-NH₂
• Result format for lyophilised samples: mg per vial and peptide purity
• Result format for raw API powders: Purity in % (m/m) and peptide purity
• Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate
• Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture
• Average turnaround time: 7 business days

Important Notice

• This analysis is specifically intended for oxytocin. It does not automatically screen the sample for related peptides, degradation products, contaminants, or undeclared substances.
• For lyophilised samples, one whole unopened vial containing lyophilisate is required.
• Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.
• The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.

Optional Additional Analyses

The following optional laboratory services are available:

• TFA Analysis
• Complete Raw Analytical Data
• Fentanyl Screening
• Alternative Result Format: Purity in % (m/m)
• Batch Variance Testing
• pH Measurement
• Endotoxin Analysis
• CHNS Mass Report
• LCMS Screening for Peptide Contamination
• Sterility Testing (TAMC + TYMC)
• Heavy Metals Analysis (As, Cd, Pb, Hg)
• Additional Laboratory Report