Section 1: Identification

Name: EPINEPHRINE

Section 2: Hazard(s) Identification

GHS Pictogram

Signal Word(s): Warning

Section 3: Composition/Information on Ingredients

Name: EPINEPHRINE

CAS Registry Number: 51-43-4

UNII: YKH834O4BH

Section 4: First-Aid Measures

Section 5: Fire-Fighting Measures

Section 6: Accidental Release Measures

Section 7: Handling and Storage

Section 8: Exposure Controls/Personal Protection

Section 9: Physical and Chemical Properties

Brown (in air)[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-228]

Minute crystals, gradually browning on exposure to liaght and air[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Light brown or nearly white crystalline powder[Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 505]

Colorless microcrystals[Pugsley TA; Kirk-Othmer Encyclopedia of Chemical Technology. (2001). NY, NY: John Wiley & Sons; Epinephrine and Norepinephrine. Online Posting Date: Dec 4, 2000.]

White to nearly white, microcrystalline powder or granules.[McEvoy, G.K. (ed.). AHFS Drug Information 90. Bethesda, MD: American Society of Hospital Pharmacists, Inc., 1990 (Plus Supplements 1990)., p. 625]

Odorless[Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 505]

211.5 deg C[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-228]

183.20[Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-228]

pKa = 8.28[Volpi A, Toffoli F; Bull Chim Farm 118: 594-609 (1979)]

pKa1 = 9.49 (phenol); pKa2 = 11.28 (amine); pKa3 = 13.07 (phenol) (est)[SPARC; pKa/property server. Ver 4.2 Mar, 2008. Available from, as of Mar 5, 2010: http://ibmlc2.chem.uga.edu/sparc/]

log Kow = -2.59[Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995., p. 62]

Very slightly soluble in alcohol. Readily soluble in aqueous solutions of mineral acids, NaOH, and KOH. Insoluble in aqueous solutions of ammonia and of the alkali carbonates. Insoluble in chloroform, ether, acetone, oils.[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Very slightly soluble in alcohol.[McEvoy, G.K. (ed.). AHFS Drug Information 90. Bethesda, MD: American Society of Hospital Pharmacists, Inc., 1990 (Plus Supplements 1990)., p. 625]

Insoluble in ethanol; soluble in acetic acid[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

In water, 180 mg/L at 20 deg C[Yalkowsky, S.H., He, Yan., Handbook of Aqueous Solubility Data: An Extensive Compilation of Aqueous Solubility Data for Organic Compounds Extracted from the AQUASOL dATAbASE. CRC Press LLC, Boca Raton, FL. 2003., p. 597]

Specific optical rotation = -50 deg to -53.3 deg at 25 deg C/D (in 0.6N HCl)[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Specific optical rotation = -53 deg at 20 deg C/D (aqueous HCl)[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

Absorption spectrum in 0.1M HCl: lambda max 221 nm (epsilon about 6100); lambda max 280 nm (epsilon about 2700)[Pugsley TA; Kirk-Othmer Encyclopedia of Chemical Technology. (2001). NY, NY: John Wiley & Sons; Epinephrine and Norepinephrine. Online Posting Date: Dec 4, 2000.]

IR: 1566 (Coblentz Society Spectral Collection)[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

UV: 1512 (Absorption Spectra in the UV and visible Regions, Academic Press, New York)[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

MASS: 24257 (NIST/EPA/MSDC Mass Spectral Database, 1990 version); 956 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63)[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

7.37X10-8 mm Hg at 25 deg C (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Sept 2, 2009: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

MP: 211-212 deg C, approximately 215 deg C with decomposition when heated rapidly[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Crystals. MP: 147-154 deg C (some decomposition); darkens slowly on exposure to air and light; 1 g dissolves in about 3 mL water; slightly sol in alcohol. /l-form d-Bitartrate/[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Sparingly soluble in water, alcohol /dl-Epinephrine/[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

Crystals from alcohol, mp 157 deg C. Readily soluble in water; sparingly soluble in absolute alcohol /dl-Epinephrine hydrochloride/[O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 618]

IR: 7393 (Sadtler Research Laboratories Spectral Collection) /Adrenaline/[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

MASS: 956 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63). /Adrenaline/[Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V1: 907]

Deteriorates rapidly on expsoure to air, light, heat, and alkalies. Copper, iron, and zinc destroy its activity. Slowly forms and inactive sulfonate in solution with sulfite or bisulfite. The red color that forms when neutral or alkaline solutions are exposed to air is caused by adrenochrome.[Pugsley TA; Kirk-Othmer Encyclopedia of Chemical Technology. (2001). NY, NY: John Wiley & Sons; Epinephrine and Norepinephrine. Online Posting Date: Dec 4, 2000.]

Henry's Law constant = 7.06X10-19 atm-cu m/mol at 25 deg C (est)[US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.0. Jan, 2009. Available from, as of Sept 2, 2009: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

Hydroxyl radical reaction rate constant = 1.38X10-10 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 Sept 2, 2009: http://www.epa.gov/oppt/exposure/pubs/episuitedl.htm]

Section 10: Stability and Reactivity

Section 11: Toxicological Information

All references are peer reviewed