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38613-77-3

38613-77-3 Structure

38613-77-3 Structure
IdentificationBack Directory
[Name]

Tetrakis(2,4-di-tert-butylphenyl)-1,1-biphenyl-4,4'-diylbisphosphonite
[CAS]

38613-77-3
[Synonyms]

pepq
Phos 2
irganox p-epq
irgaphos p-epo
Irgafos p-epqff
ANTIOXIDANT-626
Sandostab P-EPQ
Einecs 254-037-4
phosphonous acid, biphenyldiyl-bis[2,4-bis(butyl)phenyl]
tetrakis(2,4-di-tert-butylphenyl) [1,1-biphenyl]-4,4'-diylbi...
tetrakis(2,4-di-tert-butyl-phenyl)-4,4'-biphenylylene diphosphonite
(1,1'-Biphenyl-4,4'-diyl)bis[bis(2,4-di-tert-butylphenoxy)phosphine]
[1,1'-Biphenyl]-4,4'-diylbis[bis(2,4-di-tert-butylphenoxy)phosphine]
Pentaerythritol-diphosphoric acid-bis(2,4-bis-tert-butyl-phenyl)Ester
Tetrakis(2,4-di-tert-butylphenyl)-1,1-biphenyl-4,4'-diylbisphosphonite
Tetrakis(2,4-di-tert-butylphenyl)-[1,1-biphenyl]-4,4′-diylbisphosphonit
phosphonous acid, (1,1'-biphenyl)-4,4'-diylbis-, tetrakis(2,4-bis(1,1-dimethyle
1,1'-Biphenyl-4,4'-diylbis(phosphonous acid)tetrakis(2,4-ditert-butylphenyl) ester
Tetrakis(2,4-di-tert-butylphenyl)[1,1'-biphenyl]-4,4'-diylbisphosphonite (Technical Grade)
Phosphonous acid, 1,1-biphenyl-4,4-diylbis-, tetrakis2,4-bis(1,1-dimethylethyl)phenyl ester
[4-[4-bis(2,4-ditert-butylphenoxy)phosphinophenyl]phenyl]-bis(2,4-ditert-butylphenoxy)phosphine
4,4',4'',4'''-[[(1,1'-Biphenyl-4,4'-diyl)bis(phosphinetriyl)]tetrakisoxy]tetrakis(1,3-di-tert-butylbenzene)
Phosphonous acid, p,p'-((1,1'-biphenyl)-4,4'-diyl)bis-, p,p,p',p'-tetrakis(2,4-bis(1,1-dimethylethyl)phenyl) ester
[EINECS(EC#)]

254-037-4
[Molecular Formula]

C68H92O4P2
[MDL Number]

MFCD00799590
[MOL File]

38613-77-3.mol
[Molecular Weight]

1035.4
Chemical PropertiesBack Directory
[Melting point ]

75-95°C
[Boiling point ]

854.2±65.0 °C(Predicted)
[storage temp. ]

under inert gas (nitrogen or Argon) at 2-8°C
[solubility ]

Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
[form ]

Solid
[color ]

White to Off-White
[EPA Substance Registry System]

Phosphonous acid, [1,1'-biphenyl]-4,4'-diylbis-, tetrakis[2,4-bis(1,1-dimethylethyl)phenyl] ester (38613-77-3)
Safety DataBack Directory
[Symbol(GHS) ]


GHS07,GHS09
[Signal word ]

Warning
[Hazard statements ]

H400-H332-H410
[Precautionary statements ]

P273-P391-P501-P273-P391-P501-P261-P271-P304+P340-P312
[Toxicity]

LD50 orl-rat: >10 g/kg KHZDAN 28(5),64,1985
Hazard InformationBack Directory
[Uses]

Tetrakis(2,4-di-tert-butylphenyl)[1,1''-biphenyl]-4,4''-diylbisphosphonite is a phosphite antioxidant.
[Safety Profile]

Low toxicity by ingestion. Experimental reproductive effects. When heated to decomposition it emits toxic vapors of POx.
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