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ChemicalBook >> CAS DataBase List >>9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Structure
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide structure
CAS No.
35948-25-5
Chemical Name:
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
Synonyms
DOP;DOPO;FR-DOPO;PD-3710;9,10-Dihydro-9-oxa;Flame Retardant DOPO;DOPO Flame Retardant;10H-9-Oxa-10-phosphaphenanthrene 10-oxide;10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide;DOPO, 99.5%
CBNumber:
CB9228371
Molecular Formula:
C12H9O2P
Molecular Weight:
216.17
MDL Number:
MFCD00040561
MOL File:
35948-25-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 04:24:13
Product description Number Pack Size Price
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide >97.0%(T) D1874 25g $30
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide >97.0%(T) D1874 100g $63
9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 273133 100g $345
9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 273133 250g $502
9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 273133 500g $672
More product size
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9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Properties

Melting point 119°C
Boiling point 399.7±25.0 °C(Predicted)
vapor pressure 0.004Pa at 25℃
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
color White to Off-White
Water Solubility 3.574g/L at 25℃
InChI InChI=1S/C12H9O2P/c13-15-12-8-4-2-6-10(12)9-5-1-3-7-11(9)14-15/h1-8,15H
InChIKey VBQRUYIOTHNGOP-UHFFFAOYSA-N
SMILES O1C2=CC=CC=C2C2=CC=CC=C2P1=O
LogP 1.87
CAS DataBase Reference 35948-25-5(CAS DataBase Reference)
FDA UNII 63LTW1C2TR
EPA Substance Registry System 6H-Dibenz[c,e][1,2]oxaphosphorin, 6-oxide (35948-25-5)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Risk Statements  36/37/38
Safety Statements  26-36/37/39
TSCA  TSCA listed
HS Code  2934999090
REACH Registrations Active
NFPA 704
1
0 0

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide price More Price(52)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical D1874 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide >97.0%(T) 35948-25-5 25g $30 2026-04-30 Buy
TCI Chemical D1874 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide >97.0%(T) 35948-25-5 100g $63 2026-04-30 Buy
Usbiological 273133 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 35948-25-5 100g $345 2026-06-03 Buy
Usbiological 273133 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 35948-25-5 250g $502 2026-06-03 Buy
Usbiological 273133 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide Asreported 35948-25-5 500g $672 2026-06-03 Buy
Product number Packaging Price Buy
D1874 25g $30 Buy
D1874 100g $63 Buy
273133 100g $345 Buy
273133 250g $502 Buy
273133 500g $672 Buy

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Chemical Properties,Uses,Production

Uses

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide is an high effective componant of flame retardant epoxy resins.

Flammability and Explosibility

Non flammable

Synthesis

6-Chlorobenzo[c][1,2]benzoxaphosphinine

22749-43-5

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide

35948-25-5

General procedure for the synthesis of 9,10-dihydro-9-oxa-10-phosphaphenanthrene from 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene: 10 g of 6-chloro-6H-dibenzo[c,e][1,2]oxaphosphorine (0.0426 mol), 1.2 g of hydrochloric acid (0.0335 mol), and 2.1 g of water were added to a reactor and stirred for 5 minutes to form a homogeneous solution. The reaction mixture was heated at 80 °C for 1 h. Upon completion of the reaction, the system was divided into an organic layer and an aqueous layer. The temperature of the organic layer was maintained at 80 °C, and the organic layer was separated and transferred to another reactor. Reduced pressure distillation was carried out at 165 °C and 0.3 mbar to give 9.03 g of the white solid product 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide [Yield: 98%; Color: 8 Hazen; Purity: 99.25% (major component: minor component = 99.25%: 0.75%); Melting point: 122.13 °C (DSC peak)] .

References

[1] Patent: US2011/34717, 2011, A1. Location in patent: Page/Page column 3
[2] Patent: US2007/173659, 2007, A1. Location in patent: Page/Page column 5
[3] J. Gen. Chem. USSR (Engl. Transl.), 1972, vol. 42, p. 88 - 90
[4] Zhurnal Obshchei Khimii, 1972, vol. 42, p. 93 - 96
[5] Heterocycles, 2011, vol. 83, # 4, p. 743 - 753

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Preparation Products And Raw materials

Raw materials

2-Phenylphenol Zinc chloride Phosphorus trichloride Sodium hydroxide 3-(4-Hydroxyphenyl)propionic acid
Phosphinic acid, P-(2'-hydroxy[1,1'-biphenyl]-2-yl)- 6-Chlorobenzo[c][1,2]benzoxaphosphinine

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Preparation Products

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Suppliers

Global( 417)Suppliers
Supplier Tel Email Country ProdList Advantage
HANGZHOU HAILAN CHEMICAL CO.,LTD.
+86-57156122185 +86-15967590394 sales@hailan-chem.com China 2998 58
Wuhan Fortuna Chemical Co., Ltd 		+86-27-59207850 info@fortunachem.com China 5998 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-86-13131129325 sales1@chuanghaibio.com China 5216 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20111 58
Guangzhou Xijia New Materials Co.,Ltd 		13650882421 ebswax@163.com China 98 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806 sales@capot.com China 29626 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 14036 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21533 55
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418679 +86-18949832763 info@tnjchem.com China 2984 55
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29766 58
Supplier Advantage
HANGZHOU HAILAN CHEMICAL CO.,LTD.
58
Wuhan Fortuna Chemical Co., Ltd 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Henan Fengda Chemical Co., Ltd 		58
Guangzhou Xijia New Materials Co.,Ltd 		58
Capot Chemical Co.,Ltd. 		60
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
Hefei TNJ Chemical Industry Co.,Ltd. 		55
career henan chemical co 		58

View Lastest Price from 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Polyglyceryl-2 dipolyhydroxystearate pictures 2026-08-19 Polyglyceryl-2 dipolyhydroxystearate
35948-25-5
 1KG 98.0% 1000kg/month WUHAN FORTUNA CHEMICAL CO., LTD
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide pictures 2026-08-17 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
35948-25-5
 $1.00-100.00 1KG 99% Henan Fengda Chemical Co., Ltd
Flame Retardant Dopo pictures 2026-05-28 Flame Retardant Dopo
35948-25-5
 $10.00 1KG 99.8% 100tons Hebei Chuanghai Biotechnology Co,.LTD

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Spectrum

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide(35948-25-5)MS9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide(35948-25-5)IR19,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide(35948-25-5)IR2

35948-25-5(9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide)Related Search:

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Diethyl bis(2-hydroxyethyl)aminomethylphosphonate 9,10-Dihydro-10-(2,3-dicarboxypropyl)-9-oxa-10-phosphaphenanthrene 10-oxide BIS(CARBONYLDITHIO)TETRATHIAFULVALENE 2-Phenylphenol 4-HYDROXY-TEMPO
10-(2,5-Dihydroxyphenyl)-10H-9-oxa-10-phospha-phenantbrene-10-oxide 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Phenylphosphinic acid Phenanthrene 10-(3, 5-di-t-Butyl-4-hydroxybenzyl)-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
(9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) polymer with styrene and .alpha.-methyl-styrene

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10H-9-Oxa-10-phosphaphenanthrene 10-oxide 9H,10H-9-Oxa-10-phosphaphenanthrene-10-oxide 9-Oxa-10-phospha-9,10-dihydrophenanthrene 10-oxide 9,10-DIHYDRO-9-OXA-10-PHOSPAPHENANTHRENE-10-OXIDE(DOPO) 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 9,10-DIHYDRO-9-OXA-10-PHOSPAPHENANTHRENE- 9,10-Dihydro-9-Oxa-10-Phospaphenanthrene-10-Oxide 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO) 9,10-DIHYDRO-9-OXA-10-PHOSPHAPHENANTHRENE-10-OXIDE(DOPO, HCA) 9,10-Dihydro-9-oxa-10-phosphaphenanthracene-10-oxide 9,10-DIHYDRO-9-OXA-10-PHOSPHAPHENANTHRENE 10-OXIDE 97+% 9,10-DIHYDRO-9-OXA-10-PHOSPHAPHENANT 6-oxidobenzo[c][2,1]benzoxaphosphorin FR-DOPO Flame Retardant DOPO 9,10-Dihydro-9-oxa-10-phosphorophenanthrene-10-oxide 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide 95+% 9,10-Dihydro-9-oxa-10-phosphapheanthrene-10-Oxid C6H4P(O)(H)OC6H4 10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 6-Oxide-6H-dibenz[c,e][1,2]oxaphosphorin 8-oxa-9$l^{5}-phosphatricyclo[8.4.0.0^{2,7}]tetradeca-1(14),2,4,6,10,12-hexaen-9-one DOPO flaMe ertardant 6H-Dibenzo[c,e][1,2]oxaphosphinine 6-oxide Dihydro-9-oxa-10-phosphaphenanthre Dihydrooxaphosphaphenanthreneoxide 6H-DIBENZ[C,E][1,2]OXAPHOSPHORIN-6-OXIDE 9,10-DIHYDRO-9-OXA-10-PHOSPHAPHENANTHRENE 10-OXIDE 3,4:5,6-DIBENZO-1,2-OXAPHOSPHANE-2-OXIDE 9, 10-Dihydro-9-Oxa-10-Phosphahenanthrene-10-Oxide(Dopo) 9,10-Dihydro-9-oxa-10-phosphaphenanthrene10-Oxide> 9,10-Dihydro-9-oxa-10-phospaphenantrene-10-oxide 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide ISO 9001：2015 REACH 9,1-Dihydro-9-oxa-1-phosphaphenanthrene 1-oxide DOPO, 99.5% 9,10-Dihydro-9-oxa-10-phosphaphenthrene 10-Oxide 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide(Flame retardant DOPO) 9,10-Dihydro-9-oxa DOP DOPO Flame Retardant DOPO PD-3710 35948-25-5 65948-25-5 C12H9O2P Piperazines ,Oxazolines/Oxazolidines flame retardant fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, functional materials Industrial/Fine Chemicals