*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : ZE2625000
CHEMICAL NAME : p-Xylene
CAS REGISTRY NUMBER : 106-42-3
LAST UPDATED : 199712
DATA ITEMS CITED : 30
MOLECULAR FORMULA : C8-H10
MOLECULAR WEIGHT : 106.18
WISWESSER LINE NOTATION : 1R D1
COMPOUND DESCRIPTOR : Reproductive Effector
SYNONYMS/TRADE NAMES :
* Chromar
* p-Dimethylbenzene
* 1,4-Dimethylbenzene
* p-Methyltoluene
* Scintillar
* 1,4-Xylene
* p-Xylene
* P-Xylol
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka
Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959-
Volume(issue)/page/year: 22,883,1980
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 4550 ppm/4H
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - chronic pulmonary edema
Liver - other changes
Blood - changes in cell count (unspecified)
REFERENCE :
36YFAG "Biological Reactive Intermediates, Formation, Toxicity and
Inactivation, Proceedings of the International Conference, Turku, Finland,
1975," Jollow, D.J., et al., eds., New York, Plenum Pub. Corp., 1977
Volume(issue)/page/year: -,302,1977
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 3810 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - chronic pulmonary edema
Liver - other changes
Blood - changes in cell count (unspecified)
REFERENCE :
36YFAG "Biological Reactive Intermediates, Formation, Toxicity and
Inactivation, Proceedings of the International Conference, Turku, Finland,
1975," Jollow, D.J., et al., eds., New York, Plenum Pub. Corp., 1977
Volume(issue)/page/year: -,302,1977
TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 15 gm/m3
TOXIC EFFECTS :
Behavioral - general anesthetic
Lungs, Thorax, or Respiration - respiratory depression
Cardiac - other changes
REFERENCE :
AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und
Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher
information, see NSAPCC. Volume(issue)/page/year: 143,223,1929
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2450 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000
Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year:
58,106,1985
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Mammal - species unspecified
DOSE/DURATION : 2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPBAA7 Journal of Pathology and Bacteriology. (London, UK) V.1-96,
1892-1968. For publisher information, see JPTLAS. Volume(issue)/page/year:
46,95,1938
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Mammal - species unspecified
DOSE/DURATION : 5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPBAA7 Journal of Pathology and Bacteriology. (London, UK) V.1-96,
1892-1968. For publisher information, see JPTLAS. Volume(issue)/page/year:
46,95,1938
** REPRODUCTIVE DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE : 3000 mg/m3/24H
SEX/DURATION : female 9-10 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Maternal Effects - other effects
Endocrine - estrogenic
REFERENCE :
TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85,
Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 19,263,1981
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE : 150 mg/m3/24H
SEX/DURATION : female 7-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - extra-embryonic structures
(e.g., placenta, umbilical cord)
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85,
Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 18,61,1980
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE : 3000 mg/m3/24H
SEX/DURATION : female 7-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
REFERENCE :
TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85,
Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 18,61,1980
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE : 7 gm/m3
SEX/DURATION : female 7-16 day(s) after conception
TOXIC EFFECTS :
Reproductive - Maternal Effects - other effects
REFERENCE :
TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 34,223,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 12 mg/kg
SEX/DURATION : female 12-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - craniofacial
(including nose and tongue)
REFERENCE :
APTOD9 Abstracts of Papers, Society of Toxicology. Annual Meetings.
(Academic Press, Inc., 1 E. First St., Duluth, MN 55802)
Volume(issue)/page/year: 19,A22,1980
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE : 500 mg/m3/12H
SEX/DURATION : female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
ATSUDG Archives of Toxicology, Supplement. (Springer-Verlag New York, Inc.,
Service Center, 44 Hartz Way, Secaucus, NJ 07094) No.1- 1978-
Volume(issue)/page/year: 8,425,1985
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rabbit
DOSE : 1 gm/m3/24H
SEX/DURATION : female 7-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Fertility - abortion
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
ATSUDG Archives of Toxicology, Supplement. (Springer-Verlag New York, Inc.,
Service Center, 44 Hartz Way, Secaucus, NJ 07094) No.1- 1978-
Volume(issue)/page/year: 8,425,1985
*** REVIEWS ***
ACGIH TLV-Not classifiable as a human carcinogen
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
ACGIH TLV-STEL 651 mg/m3 (150 ppm)
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
ACGIH TLV-TWA 434 mg/m3 (100 ppm)
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
TOXICOLOGY REVIEW
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 47,75,1978
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-air:TWA 100 ppm (440 mg/m3) (skin)
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
3,281,1971
OSHA PEL (Gen Indu):8H TWA 100 ppm (435 mg/m3)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1910.1000,1994
OSHA PEL (Construc):8H TWA 100 ppm (435 mg/m3)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1926.55,1994
OSHA PEL (Shipyard):8H TWA 100 ppm (435 mg/m3)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1915.1000,1993
OSHA PEL (Fed Cont):8H TWA 100 ppm (435 mg/m3)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
41,50-204.50,1994
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO p-XYLENE-air:10H TWA 100 ppm;STEL 150 ppm
REFERENCE :
NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
Health, Education, and Welfare, Reports and Memoranda.
Volume(issue)/page/year: DHHS #92-100,1992
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - M1028
No. of Facilities: 62 (estimated)
No. of Industries: 4
No. of Occupations: 10
No. of Employees: 1912 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - M1028
No. of Facilities: 1994 (estimated)
No. of Industries: 22
No. of Occupations: 21
No. of Employees: 20366 (estimated)
No. of Female Employees: 6336 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA 8(a) PRELIMINARY ASSESSMENT INFORMATION, FINAL RULE
FEREAC Federal Register. (U.S. Government Printing Office, Supt. of
Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year:
47,26992,82
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***