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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;Flame Retardant DOPO;10H-9-Oxa-10-phosphaphenanthrene 10-oxide;10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide;PD-3710;DOPO, 99.5%;C6H4P(O)(H)OC6H4;9,10-Dihydro-9-oxa
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:2026-04-28 17:23:06
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 >97.0%(T) D1874 500g $136
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide 273133 100g $345
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide D679033 500mg $70
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)  GHS hazard pictograms
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
NFPA 704
1
0 0

9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide price More Price(20)

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
TCI Chemical D1874 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide >97.0%(T) 35948-25-5 500g $136 2026-04-30 Buy
Usbiological 273133 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide 35948-25-5 100g $345 2021-12-16 Buy
TRC D679033 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide 35948-25-5 500mg $70 2021-12-16 Buy
Product number Packaging Price Buy
D1874 25g $30 Buy
D1874 100g $63 Buy
D1874 500g $136 Buy
273133 100g $345 Buy
D679033 500mg $70 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( 405)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8738 58
Wuhan Fortuna Chemical Co., Ltd 		+86-27-59207850 info@fortunachem.com China 5974 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-86-13131129325 +8613131129325 sales1@chuanghaibio.com China 5235 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20124 58
Hebei Zhuanglai Chemical Trading Co.,Ltd 		+8613343047651 admin@zlchemi.com China 3692 58
Guangzhou Xijia New Materials Co.,Ltd 		+undefined13650882421 ebswax@163.com China 54 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718; +8613336195806 sales@capot.com China 29640 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 13843 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21590 55
AB PharmaTech,LLC 		323-480-4688 sales@acrospharmatech.com United States 989 55
Supplier Advantage
Hebei Chuanghai Biotechnology Co., Ltd 		58
Wuhan Fortuna Chemical Co., Ltd 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Henan Fengda Chemical Co., Ltd 		58
Hebei Zhuanglai Chemical Trading 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
AB PharmaTech,LLC 		55

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 2026-04-30 Polyglyceryl-2 dipolyhydroxystearate
35948-25-5
 US $0.00 / KG 1KG 98.0% 1000kg/month WUHAN FORTUNA CHEMICAL CO., LTD
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide pictures 2026-04-28 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
35948-25-5
 US $0.00 / KG 1KG 99% 10000KG Guangzhou Xijia New Materials Co.,Ltd
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide pictures 2026-03-20 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
35948-25-5
 US $10.00 / KG 1KG 99% 100 mt 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:

SW606 Tri-(4-hydroxy-TEMPO) phosphite Triphenyl phosphate 3-Hydroxyphenylphosphinyl-propanoic acid Tri(4-isopropylphenyl) phosphate
Diethyl bis(2-hydroxyethyl)aminomethylphosphonate 9,10-Dihydro-10-(2,3-dicarboxypropyl)-9-oxa-10-phosphaphenanthrene 10-oxide 4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy BIS(CARBONYLDITHIO)TETRATHIAFULVALENE 2-Phenylphenol
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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DOP 10H-9-Oxa-10-phosphaphenanthrene 10-oxide 9H,10H-9-Oxa-10-phosphaphenanthrene-10-oxide 9-Oxa-10-phospha-9,10-dihydrophenanthrene 10-oxide PD-3710 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 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 DOPO Flame Retardant 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 DOPO 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) 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