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9-diphosphaspiro[5.5]undecane

3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,
9-diphosphaspiro[5.5]undecane (Molecular Formula: C33H50O6P2)
Product Name: 3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,
9-diphosphaspiro[5.5]undecane
CAS Registry Number: 26741-53-7
EINECS: 247-952-5  
Synonyms: Ultranox 626; BRN 4773772; MARK PEP 24;3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,
9-diphosphaspiro[5.5]undecane; Weston MDW 626; EINECS 247-952-5;Ultranox 624;
Molecular Structure:
Molecular Formula: C33H50O6P2
Molecular Weight: 604.694024
Boiling Point:  555.8 °C at 760 mmHg
Melting Point:  160-178 ºC
Flash Point:  363.9 °C
Safety Statements:  Low toxicity by ingestion, inhalation, and skin contact. When heated to decomposition it emits toxic vapors of POx.
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9-diphosphaspiro[5.5]undecane

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