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26741-53-7

26741-53-7 structure
26741-53-7 structure
Name Antioxidant 24
Synonyms THP-24
EINECS 247-952-5
3,9-Bis[2,4-bis(2-methyl-2-propanyl)phenoxy]-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane
2,4,8,10-Tetraoxa-3,9-diphosphaspiro[5.5]undecane, 3,9-bis[2,4-bis(1,1-dimethylethyl)phenoxy]-
Alkanox-P-24
bis(2,4-Di-tert-butylphenyl)pentaerythritol diphosphite
3,9-Bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane
ADK Stab PEP 24
Antioxidant AT-626
mark pep 24
Ultranox 626
Boiling Point 555.8±50.0 °C at 760 mmHg
Melting Point 160-178ºC
Molecular Formula C33H50O6P2
Molecular Weight 604.694
Flash Point 363.9±30.4 °C
Exact Mass 604.308289
PSA 82.56000
LogP 11.76
Vapour Pressure 0.0±1.4 mmHg at 25°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TG7400000
CHEMICAL NAME :
Phosphorous acid, cyclic neopentanetetrayl bis(2,4-di-tert-butylphenyl)ester
CAS REGISTRY NUMBER :
26741-53-7
LAST UPDATED :
199710
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C33-H50-O6-P2

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 :
5580 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-1287-0706
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>2 gm/m3
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-1287-0706
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-1287-0706 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - E0783 No. of Facilities: 66 (estimated) No. of Industries: 4 No. of Occupations: 8 No. of Employees: 3046 (estimated) No. of Female Employees: 2303 (estimated)
Hazard Codes Xi
Precursor  3

DownStream  0

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