PHENACETIN
HAZARDTEXT ®
Information to help in the initial response for evaluating chemical incidents
-IDENTIFICATION
SYNONYMS
IDENTIFIERS
USES/FORMS/SOURCES
Phenacetin is included in the therapeutic category of analgesics and antipyretics (Budavari, 2001). COCAINE ADULTERANT: An HPLC-DAD method was developed and successfully used to detect the presence of phenacetin as an adulterant in 5 of 115 cocaine samples seized in Brazil between 2007 and 2012. Reportedly, phenacetin is frequently used as a cocaine adulterant in Europe, although these findings suggest that it may be developing more of a presence as a cocaine adulterant in South America as well (Floriani et al, 2014).
Phenacetin is a slightly bitter, crystals or powder (Budavari, 2001). It was previously found as a constituent of many over-the-counter headache remedies such as APC, Bromo Seltzer and Empirin Compound. Usually 90 to 150 mg per tablet.
-CLINICAL EFFECTS
GENERAL CLINICAL EFFECTS
- NOTE - Phenacetin has not been available in the United States since August 1983.
- ACUTE INGESTION - The minimal acute toxic dose is not well established in the literature. Acute overdosage or chronic daily doses exceeding 1 gram may result in methemoglobinemia and hemolytic anemia.
Signs and symptoms following severe intoxication may include seizures, coma, cyanosis, respiratory depression and cardiac arrest.
- CHRONIC INGESTION - Renal papillary necrosis may occur following long term exposure to large doses of combination analgesics containing phenacetin.
- Editor's Note: An ERG guide with information appropriate to this material does not exist.
-FIRST AID
FIRST AID AND PREHOSPITAL TREATMENT
-RANGE OF TOXICITY
MAXIMUM TOLERATED EXPOSURE
INGESTION - There are few studies on the acute toxicity of pure phenacetin. A single oral dose of 30 milligrams/kilogram in a 17-year-old increased methemoglobin from 0.2 percent to 11.4 percent within 6 hours; Heinz bodies were present in peripheral blood. Evaluation of 7 controls revealed methemoglobin levels of less than 2.8 percent. This patient exhibited altered phenacetin metabolism, excreting only 30 percent of the total dose as acetaminophen, compared to 62 percent in controls; a greater proportion of 2-hydroxy derivatives were excreted (Shahidi, 1968).
Chronic ingestion of 1 to 2 grams/day (Hutchison & Jackson, 1962), 2 to 3 grams/day (Easley & Condon, 1974), 3 to 4 grams/day (Basset et al, 1981), and 2 to 5 grams (Shahidi, 1968) resulted in methemoglobinemia and hemolytic anemia.
- Carcinogenicity Ratings for CAS62-44-2 :
ACGIH (American Conference of Governmental Industrial Hygienists, 2010): Not Listed EPA (U.S. Environmental Protection Agency, 2011): Not Listed IARC (International Agency for Research on Cancer (IARC), 2016; International Agency for Research on Cancer, 2015; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010a; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2008; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2007; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2006; IARC, 2004): 1 ; Listed as: Phenacetin 1 : The agent (mixture) is carcinogenic to humans. The exposure circumstance entails exposures that are carcinogenic to humans. This category is used when there is sufficient evidence of carcinogenicity in humans. Exceptionally, an agent (mixture) may be placed in this category when evidence of carcinogenicity in humans is less than sufficient but there is sufficient evidence of carcinogenicity in experimental animals and strong evidence in exposed humans that the agent (mixture) acts through a relevant mechanism of carcinogenicity.
NIOSH (National Institute for Occupational Safety and Health, 2007): Not Listed MAK (DFG, 2002): Not Listed NTP (U.S. Department of Health and Human Services, Public Health Service, National Toxicology Project ): Not Listed
TOXICITY AND RISK ASSESSMENT VALUES
- EPA Risk Assessment Values for CAS62-44-2 (U.S. Environmental Protection Agency, 2011):
-STANDARDS AND LABELS
WORKPLACE STANDARDS
- ACGIH TLV Values for CAS62-44-2 (American Conference of Governmental Industrial Hygienists, 2010):
- AIHA WEEL Values for CAS62-44-2 (AIHA, 2006):
- NIOSH REL and IDLH Values for CAS62-44-2 (National Institute for Occupational Safety and Health, 2007):
- OSHA PEL Values for CAS62-44-2 (U.S. Occupational Safety, and Health Administration (OSHA), 2010):
- OSHA List of Highly Hazardous Chemicals, Toxics, and Reactives for CAS62-44-2 (U.S. Occupational Safety and Health Administration, 2010):
ENVIRONMENTAL STANDARDS
- EPA CERCLA, Hazardous Substances and Reportable Quantities for CAS62-44-2 (U.S. Environmental Protection Agency, 2010):
Listed as: Phenacetin Final Reportable Quantity, in pounds (kilograms): Additional Information: Listed as: Acetamide, N-(4-ethoxyphenyl)- Final Reportable Quantity, in pounds (kilograms): Additional Information:
- EPA CERCLA, Hazardous Substances and Reportable Quantities, Radionuclides for CAS62-44-2 (U.S. Environmental Protection Agency, 2010):
- EPA RCRA Hazardous Waste Number for CAS62-44-2 (U.S. Environmental Protection Agency, 2010b):
Listed as: Acetamide, N-(4-ethoxyphenyl)- P or U series number: U187 Footnote: Listed as: Phenacetin P or U series number: U187 Footnote: Editor's Note: The D, F, and K series waste numbers and Appendix VIII to Part 261 -- Hazardous Constituents were not included. Please refer to 40 CFR Part 261.
- EPA SARA Title III, Extremely Hazardous Substance List for CAS62-44-2 (U.S. Environmental Protection Agency, 2010):
- EPA SARA Title III, Community Right-to-Know for CAS62-44-2 (40 CFR 372.65, 2006; 40 CFR 372.28, 2006):
- DOT List of Marine Pollutants for CAS62-44-2 (49 CFR 172.101 - App. B, 2005):
- EPA TSCA Inventory for CAS62-44-2 (EPA, 2005):
LABELS
- NFPA Hazard Ratings for CAS62-44-2 (NFPA, 2002):
-PERSONAL PROTECTION
SUMMARY
- Editor's Note: An ERG guide with information appropriate to this material does not exist.
PROTECTIVE CLOTHING
- CHEMICAL PROTECTIVE CLOTHING. Search results for CAS 62-44-2.
-PHYSICAL HAZARDS
FIRE HAZARD
- FLAMMABILITY CLASSIFICATION
- NFPA Flammability Rating for CAS62-44-2 (NFPA, 2002):
- FIRE CONTROL/EXTINGUISHING AGENTS
- Editor's Note: An ERG guide with information appropriate to this material does not exist.
- NFPA Extinguishing Methods for CAS62-44-2 (NFPA, 2002):
EVACUATION PROCEDURES
- Editor's Note: An ERG guide with information appropriate to this material does not exist.
- AIHA ERPG Values for CAS62-44-2 (AIHA, 2006):
- DOE TEEL Values for CAS62-44-2 (U.S. Department of Energy, Office of Emergency Management, 2010):
Listed as Phenacetin (p-acetophenetidide) TEEL-0 (units = mg/m3): 0.5 TEEL-1 (units = mg/m3): 1.5 TEEL-2 (units = mg/m3): 10 TEEL-3 (units = mg/m3): 60 Definitions: TEEL-0: The threshold concentration below which most people will experience no adverse health effects. TEEL-1: The airborne concentration (expressed as ppm [parts per million] or mg/m(3) [milligrams per cubic meter]) of a substance above which it is predicted that the general population, including susceptible individuals, could experience notable discomfort, irritation, or certain asymptomatic, nonsensory effects. However, these effects are not disabling and are transient and reversible upon cessation of exposure. TEEL-2: The airborne concentration (expressed as ppm or mg/m(3)) of a substance above which it is predicted that the general population, including susceptible individuals, could experience irreversible or other serious, long-lasting, adverse health effects or an impaired ability to escape. TEEL-3: The airborne concentration (expressed as ppm or mg/m(3)) of a substance above which it is predicted that the general population, including susceptible individuals, could experience life-threatening adverse health effects or death.
- AEGL Values for CAS62-44-2 (National Research Council, 2010; National Research Council, 2009; National Research Council, 2008; National Research Council, 2007; NRC, 2001; NRC, 2002; NRC, 2003; NRC, 2004; NRC, 2004; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; 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62 FR 58840, 1997; 65 FR 14186, 2000; 65 FR 39264, 2000; 65 FR 77866, 2000; 66 FR 21940, 2001; 67 FR 7164, 2002; 68 FR 42710, 2003; 69 FR 54144, 2004):
- NIOSH IDLH Values for CAS62-44-2 (National Institute for Occupational Safety and Health, 2007):
CONTAINMENT/WASTE TREATMENT OPTIONS
-PHYSICAL/CHEMICAL PROPERTIES
MOLECULAR WEIGHT
DESCRIPTION/PHYSICAL STATE
- White or off-white glistening crystalline scales or fine white crystalline powder with a slightly bitter taste (Budavari, 2001).
PH
- The saturated solution is neutral.
SOLUBILITY
-REFERENCES
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- 69 FR 54144: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2004.
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