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9,10-Dihydro-9-oxo-10-phosphonophenanthrene-10-oxide( DOPO )

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  Post Date: Oct 09,2025
  Expiry Date: Apr 07,2026
  Detailed Description: Cas No. :35948-25-5 9,10-Dihydro-9-oxo-10-phosphonophenanthrene-10-oxide（ DOPO )
Product Introduction
[Molecular formula]: C12H9PO2
[Molecular weight]: 216.17
[CAS number]: [35948-25-5]
[Description]: White crystalline powder or thin film, easily soluble in methanol, ethanol, chloroform, etc., soluble in benzene, toluene, chlorobenzene, etc., insoluble in water. 
Quality Index：
Technical Parameter Premium grade
Content (%) ≥99.50
OPP content (ppm) ≤1000
Acid value (g) ≤300
Chromaticity (APHA) ≤100
Water absorption (%) ≤0.3
Melting point (℃) 117-120

[Application]: It can be used for linear polyester, polyamide, epoxy resin, polyurethane, and is widely used in plastics for electronic equipment, copper laminated circuit boards, and other aspects.
[Features]: DOPO has high thermal stability, oxidation resistance, and excellent water resistance. It is a reactive and additive flame retardant. Due to the presence of phosphorus carbon bonds, its flame retardant performance is better than that of general phosphate esters.
[Packaging]: 25kg paper bag.
[Storage and Transportation]: Handle with care, seal and store, do not get damp.

  CAS Registry Number:

35948-25-5
  Synonyms: ;9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide;DOPO;HCA;Flame retardant-DOPO;BHGUARD-DOPO;9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide;Fire retardant DOPO;6H-dibenz(C,E)(1,2)oxaphosphorin-6-oxide;6-oxo-6H-dibenzo[c,e][1,2]oxaphosphinin-6-ium;6H-dibenzo[c,e][1,2]oxaphosphinine 6-oxide;6H-Dibenz[c,e][1,2]oxaphosphorin 6-oxide;9,10-Dihydro-9-oxa-10-phosphorophenanthrene-10-oxide;9H,10H-9-oxa-10-phosphaphenanthrene-10-oxide;
  Molecular Formula: C12H9O2P
  Molecular Weight: 216.1724
  Molecular Structure: 35948-25-5 6H-dibenz(C,E)(1,2)oxaphosphorin-6-oxide

  Company: Zhenjiang Xingxing Flame Retardant Co.,Ltd.(Zhenjiang Sanwa Flame Retardant Technology co.,ltd.)     [ China ]          
  Contact: Wang guohua
  Tel: +86-511-84417435
  Fax: +86-511-84411179
  Email: wgh@xxflameretard.com
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