3,9-diphenoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane

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Names

[ CAS No. ]:
144-35-4

[ Name ]:
3,9-diphenoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane

[Synonym ]:
Diphenylpentaerythitholdiphosphit
diphenyl pentaerythritol diphosphite
EINECS 205-625-4
Diphenyl pentaerythrityl diphosphite
Dipentite
Phosphorous acid,cyclic neopentanetetrayl diphenyl ester

Chemical & Physical Properties

[ Boiling Point ]:
404.9ºC at 760mmHg

[ Molecular Formula ]:
C17H18O6P2

[ Molecular Weight ]:
380.26900

[ Flash Point ]:
245.9ºC

[ Exact Mass ]:
380.05800

[ PSA ]:
82.56000

[ LogP ]:
4.67820

[ Vapour Pressure ]:
2.13E-06mmHg at 25°C

Safety Information

[ HS Code ]:
2909309090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Triphenyl phosphite
  • Pentaerythritol
  • Phenol
  • 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane

DownStream

  • α-Cumyl alcohol
  • 3,9-diphenoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane-3,9-dioxide

Customs

[ HS Code ]: 2909309090

[ Summary ]:
2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%