Section 1: Identification

Name: Oxytocin

Section 2: Hazard(s) Identification

GHS Pictogram

Signal Word(s): Warning

Section 3: Composition/Information on Ingredients

Name: Oxytocin

CAS Registry Number: 50-56-6

UNII: 1JQS135EYN

Section 4: First-Aid Measures

Section 5: Fire-Fighting Measures

Water spray, dry chemical, carbon dioxide, or foam as appropriate for surrounding fire and materials.[United States Pharmacopeial Convention, Inc (USP); MSDS Database Online; Material Safety Data Sheet: Oxytocin; Catalog Number: 1491300; (Revision Date: December 4, 2006)]

As with all fires, evacuate personnel to a safe area. Firefighters should use self-contained breathing equipment and protective clothing.[United States Pharmacopeial Convention, Inc (USP); MSDS Database Online; Material Safety Data Sheet: Oxytocin; Catalog Number: 1491300; (Revision Date: December 4, 2006)]

Section 6: Accidental Release Measures

Wipe up spillage or collect spillage using a high- efficiency vacuum cleaner. Avoid breathing dust. Place spillage in appropriately labeled container for disposal. Wash spill site.[United States Pharmacopeial Convention, Inc (USP); MSDS Database Online; Material Safety Data Sheet: Oxytocin; Catalog Number: 1491300; (Revision Date: December 4, 2006)]

Section 7: Handling and Storage

Section 8: Exposure Controls/Personal Protection

Section 9: Physical and Chemical Properties

White powder[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-410]

1007.19[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-410]

log Kow = -6.27 (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Jan 4, 2010: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

Soluble in water, butanol[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-410]

In water, 1.2X10+4 mg/L at 25 deg C (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Jan 4, 2010: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

SPECIFIC OPTICAL ROTATION: -26.2 DEG @ 22 DEG C/D (0.53 G/100 ML WATER)[The Merck Index. 9th ed. Rahway, New Jersey: Merck & Co., Inc., 1976., p. 904]

0.0 mm Hg at 25 deg C (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Jan 4, 2010: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

Shows an activity of 450-500 USP units/mg when compared with USP posterior pituitary reference std[The Merck Index. 9th ed. Rahway, New Jersey: Merck & Co., Inc., 1976., p. 904]

Oxytocin from beef and hog sources shows no difference in amino acid composition[The Merck Index. 9th ed. Rahway, New Jersey: Merck & Co., Inc., 1976., p. 904]

Hydroxyl radical reaction rate constant = 5.3X10-10 cu cm/molec-sec at 25 deg C (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Jan 4, 2010: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

Section 10: Stability and Reactivity

Section 11: Toxicological Information

All references are peer reviewed