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Registry of Toxic Effects of Chemical Substances (RTECS)

p-Terphenyl

RTECS #

WZ6475000

CAS #

92-94-4

Updated

April 2012

Molecular Weight

230.32

Molecular Formula

C18H14

Synonyms

1,1':4',1''-Terphenyl (9CI)
1,4-Diphenylbenzene
4-Phenylbiphenyl
4-Phenyldiphenyl
Biphenyl, 4-phenyl-
p-Diphenylbenzene
p-Triphenyl
Santowax P

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
oral/rat lowest published lethal dose: 500 mg/kgNCNSA6 5,26,1953
oral/rat lethal dose (50 percent kill): 1000 mg/kgLiver: Changes in liver weightVCVGH* -,214,1990
oral/rat lethal dose (50 percent kill): >10000 mg/kgGastrointestinal: Hypermotility, diarrheaHPV353 -,-,2003

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
oral/rat lowest published toxic dose: 15000 mg/kg/30D- continuousNutritional and Gross Metabolic: Weight loss or decreased weight gainHPV353 -,,2003
oral/rat lowest published toxic dose: 1680 mg/kg/14D- continuousBlood: Changes in serum composition (e.g. TP, bilirubin, cholesterol)

Biochemical: Metabolism (intermediary): Lipids including transport		HPV353 -,,2003

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airceiling concentration 1 ppm (9 mg/m3)DTLWS* 3,28,1973
Occupational Exposure Limit-DENMARKtime-weighted average 0.5 ppm (5 mg/m3), MAY2011
Occupational Exposure Limit-ICELANDtime-weighted average 0.5 ppm (5 mg/m3), NOV2011
Occupational Exposure Limit-MEXICOpeak 0.5 ppm, 2004
Occupational Exposure Limit-RUSSIAshort term exposure limit 5 mg/m3, JUN2003
Occupational Exposure Limit-UNITED KINGDOMshort term exposure limit 0.5 ppm (4.8 mg/m3), OCT2007

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Exposure Survey 1983Hazard Code 71310; Number of Industries 1; Total Number of Facilities 7; Number of Occupations 1; Total Number of Employees Exposed 28; Total Number of Female Employees Exposed 7

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(e) Risk Notification, 8EHQ-0892-8954;8EHQ-0892-8976
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001

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