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MSDS  : p-Cresol, 2-tert-butyl-
CAS  : 2409-55-4
SYNONYMS  : * 2-t-Butyl-p-cresol * o-tert-Butyl-p-cresol * 2-terc.Butyl-p-kresol * 2-t-Butyl-4-methylphenol * 2-(1,1-Dimethylethyl)-4-methylphenol * 4-Methyl-2-t-butylphenol * 4-Methyl-6-t-butylphenol * Phenol, 2-(1,1-dimethylethyl)-4-methyl-
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : GO7000000
CHEMICAL NAME : p-Cresol, 2-tert-butyl-
CAS REGISTRY NUMBER : 2409-55-4
BEILSTEIN REFERENCE NO. : 1817645
REFERENCE : 4-06-00-03397 (Beilstein Handbook Reference)
LAST UPDATED : 199712
DATA ITEMS CITED : 19
MOLECULAR FORMULA : C11-H16-O
MOLECULAR WEIGHT : 164.27
WISWESSER LINE NOTATION : QR D1 BX1&1&1
COMPOUND DESCRIPTOR : Tumorigen
Mutagen
Primary Irritant
SYNONYMS/TRADE NAMES :
* 2-t-Butyl-p-cresol
* o-tert-Butyl-p-cresol
* 2-terc.Butyl-p-kresol
* 2-t-Butyl-4-methylphenol
* 2-(1,1-Dimethylethyl)-4-methylphenol
* 4-Methyl-2-t-butylphenol
* 4-Methyl-6-t-butylphenol
* Phenol, 2-(1,1-dimethylethyl)-4-methyl-

*** HEALTH HAZARD DATA ***

** SKIN/EYE IRRITATION DATA **

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 2 mg/24H
REACTION SEVERITY : Severe
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,227,1986

TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 50 ug/24H
REACTION SEVERITY : Severe
REFERENCE :
85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,227,1986

** ACUTE TOXICITY DATA **

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2500 mg/kg
TOXIC EFFECTS :
Sense Organs and Special Senses (Olfaction) - effect, not otherwise
specified
Behavioral - ataxia
Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
Toxicology of New Industrial Chemical Substances. For English translation,
see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961-
Volume(issue)/page/year: 12,124,1971

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 700 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - acute pulmonary edema
Gastrointestinal - ulceration or bleeding from small intestine
REFERENCE :
JAPMA8 Journal of the American Pharmaceutical Association, Scientific
Edition. (Washington, DC) V.29-49, 1940-60. For publisher information, see
JPMSAE. Volume(issue)/page/year: 38,366,1949

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 144 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc.,
Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC
20037) V.6- 1963- Volume(issue)/page/year: 18,868,1975

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 10 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems
Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010)
Volume(issue)/page/year: NX#03020

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - cat
DOSE/DURATION : 940 mg/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - spastic paralysis with or without sensory
change
Behavioral - tremor
Behavioral - coma
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0571339

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 2100 mg/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - spastic paralysis with or without sensory
change
Behavioral - tremor
Behavioral - coma
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0571339

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 2200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JAPMA8 Journal of the American Pharmaceutical Association, Scientific
Edition. (Washington, DC) V.29-49, 1940-60. For publisher information, see
JPMSAE. Volume(issue)/page/year: 38,366,1949

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 1180 mg/kg
TOXIC EFFECTS :
Behavioral - sleep
Behavioral - ataxia
Lungs, Thorax, or Respiration - other changes
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
Toxicology of New Industrial Chemical Substances. For English translation,
see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961-
Volume(issue)/page/year: 12,124,1971

** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 8100 mg/kg/30D-I
TOXIC EFFECTS :
Liver - changes in liver weight
Kidney, Ureter, Bladder - urine volume decreased
Blood - pigmented or nucleated red blood cells
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
Toxicology of New Industrial Chemical Substances. For English translation,
see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961-
Volume(issue)/page/year: 12,124,1971

TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 10 mg/m3/15W-I
TOXIC EFFECTS :
Endocrine - other changes
Blood - changes in erythrocyte (RBC) count
REFERENCE :
TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
Toxicology of New Industrial Chemical Substances. For English translation,
see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961-
Volume(issue)/page/year: 12,124,1971

** TUMORIGENIC DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - hamster
DOSE/DURATION : 84 gm/kg/20W-C
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Gastrointestinal - tumors
REFERENCE :
CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House,
Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980-
Volume(issue)/page/year: 7,1285,1986

** MUTATION DATA **

TYPE OF TEST : DNA inhibition
TEST SYSTEM : Human Lymphocyte
DOSE/DURATION : 25 umol/L
REFERENCE :
RCOCB8 Research Communications in Chemical Pathology and Pharmacology. (PJD
Pub. Ltd., P.O. Box 966, Westbury, NY 11590) V.1- 1970-
Volume(issue)/page/year: 54,133,1986

TYPE OF TEST : Unscheduled DNA synthesis
ROUTE OF EXPOSURE : Oral
TEST SYSTEM : Rodent - rat
DOSE/DURATION : 336 gm/kg/8W (Continuous)
REFERENCE :
CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House,
Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980-
Volume(issue)/page/year: 11,425,1990

*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X2329
No. of Facilities: 736 (estimated)
No. of Industries: 7
No. of Occupations: 8
No. of Employees: 12254 (estimated)
No. of Female Employees: 786 (estimated)

*** STATUS IN U.S. ***

EPA TSCA Section 8(b) CHEMICAL INVENTORY

EPA TSCA Section 8(d) unpublished health/safety studies

EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998


*** END OF RECORD ***
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