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Diphenyl phosphate

Diphenyl phosphate structure

CAS No.: 838-85-7

Chemical Name:: Diphenyl phosphate

Synonyms: Diphenyl phosphate 99%;Phosphoric acid diphenyl;Sitafloxacin Impurity 29;PHOSPHORIC ACID DIPHENYL ESTER;Biphenyl Ester;DIPHENYL PHOSPHATE;Biapenem Impurity 21;DiphenylPhosphate>Diphenyl phosphate,99%;Diphenyl phosphate, 97%

CBNumber:: CB4297385

Molecular Formula:: C12H11O4P

Molecular Weight:: 250.19

MDL Number:: MFCD00003033

MOL File:: 838-85-7.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-11 19:39:08

Product description	Number	Pack Size	Price
Diphenyl phosphate 99%	850608	5g	$53
Diphenyl phosphate 99%	850608	25g	$131
Diphenyl Phosphate >99.0%(HPLC)(T)	P0801	1g	$24
Diphenyl Phosphate >99.0%(HPLC)(T)	P0801	25g	$65
Diphenyl phosphate ≥99%(HPLC)	42388	1G	$25.04
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Diphenyl phosphate Properties

Melting point	62-66 °C (lit.)
Boiling point	280°C
Density	0,76 g/cm³
refractive index	1.6250
Flash point	4°C
storage temp.	Inert atmosphere,Room Temperature
solubility	Chloroform (Slightly), Methanol (Slightly)
pka	1.12±0.50(Predicted)
form	Crystalline Powder
color	White
Water Solubility	Soluble in benzene. Insoluble in water.
BRN	1379164
InChI	1S/C12H11O4P/c13-17(14,15-11-7-3-1-4-8-11)16-12-9-5-2-6-10-12/h1-10H,(H,13,14)
InChIKey	ASMQGLCHMVWBQR-UHFFFAOYSA-N
SMILES	OP(=O)(Oc1ccccc1)Oc2ccccc2
CAS DataBase Reference	838-85-7(CAS DataBase Reference)
EPA Substance Registry System	Diphenyl phosphate (838-85-7)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P271-P280

PPE

Eyeshields, Gloves, type N95 (US)

Risk Statements

36/37/38

Safety Statements

22-24/25

WGK Germany

RTECS

TC5470000

TSCA

TSCA listed

HS Code

29190090

Storage Class

11 - Combustible Solids

NFPA 704

	0
0		0

Diphenyl phosphate price More Price(47)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	850608	Diphenyl phosphate 99%	838-85-7	5g	$53	2026-04-30	Buy
Sigma-Aldrich	850608	Diphenyl phosphate 99%	838-85-7	25g	$131	2026-04-30	Buy
TCI Chemical	P0801	Diphenyl Phosphate >99.0%(HPLC)(T)	838-85-7	1g	$24	2026-04-30	Buy
TCI Chemical	P0801	Diphenyl Phosphate >99.0%(HPLC)(T)	838-85-7	25g	$65	2026-04-30	Buy
Chem-Impex	42388	Diphenyl phosphate ≥99%(HPLC)	838-85-7	1G	$25.04	2026-05-19	Buy

Product number	Packaging	Price	Buy
850608	5g	$53	Buy
850608	25g	$131	Buy
P0801	1g	$24	Buy
P0801	25g	$65	Buy
42388	1G	$25.04	Buy

Diphenyl phosphate Chemical Properties,Uses,Production

Chemical Properties

white crystalline powder

Uses

Diphenyl phosphate can be used as an organic catalyst for the ring-opening polymerization (ROP) of renewable 5-alkyl δ-lactones. In combination with zinc iodide, it forms a novel initiating system for the living cationic polymerization of isobutyl vinyl ether.

Definition

ChEBI: Diphenyl phosphate is an aryl phosphate and metabolite of the flame retardant Triphenyl Phosphate and also a metabolite of 2-Ethylhexyl diphenyl phosphate.

Purification Methods

Crystallise it from CHCl3/pet ether. [Cherbuliez in Organo Phosphorus Compounds (Kosolapoff & Maier eds) Wiley Vol 6 pp 211-577 1973, Beilstein 6 IV 714.]

Toxics Screening Level

The initial threshold screening level (ITSL) for diphenyl phosphoric acid is 0.1 μg/m3 based on annual averaging time.

References

[1] XIAO YAN . Urinary metabolites of phosphate flame retardants in workers occupied with e-waste recycling and incineration[J]. Chemosphere, 2018, 200: Pages 569-575. DOI:10.1016/j.chemosphere.2018.02.148.
[2] MITSUO SAWAMOTO Toshinobu H Masami Kamigaito. Living cationic polymerization of isobutyl vinyl ether by the diphenyl phosphate/zinc iodide initiating system[J]. Polymer Bulletin, 1988, 20 5: 407-412. DOI:10.1007/BF01153430.

Diphenyl phosphate synthesis

Synthesis of Diphenyl phosphate from Phenol

Diphenyl phosphate Preparation Products And Raw materials

Raw materials

Preparation Products

4,4'-DIPYRIDYL SULFIDE

Diphenyl phosphate Suppliers

Global( 316)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	+8615350571055	Sibel@chuanghaibio.com	China	8738	58
Shaanxi Dideu Medichem Co. Ltd	+8617392709771	1097@dideu.com	China	3996	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5233	58
Changzhou waston chemical technology Co.,Ltd	+86-051985861892 +8618112881323	info@wastonchem.com	China	311	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20124	58
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD	+86-15350851019; +8615350851019	admin@86-ss.com	China	999	58
Hebei Zhuanglai Chemical Trading Co Ltd	+86-16264648883	niki@zlchemi.com	China	7245	58
Capot Chemical Co.,Ltd.	+8613336195806	sales@capot.com	China	29640	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21588	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29816	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co., Ltd	58
Shaanxi Dideu Medichem Co. Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Changzhou waston chemical technology Co.,Ltd	58
Henan Fengda Chemical Co., Ltd	58
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD	58
Hebei Zhuanglai Chemical Trading Co Ltd	58
Capot Chemical Co.,Ltd.	60
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58

Diphenyl Phosphate: Toxicity, Bioaccumulation & Association with Thyroid Function
Diphenyl phosphate induces zebrafish embryonic cardiotoxicity, has low in vivo conversion from TPHP, and links to elevated TT4....
Dec 17，2025

View Lastest Price from Diphenyl phosphate manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-22	Diphenyl phosphate 838-85-7	US $100.00-75.00 / kg	1kg	99%	5000	HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
2026-05-11	Diphenyl phosphate 838-85-7	US $29.00 / mL		99.95%	10g	TargetMol Chemicals Inc.
2026-05-11	Diphenyl phosphate 838-85-7	US $29.00 / mL		99.95%	10g	TargetMol Chemicals Inc.

Diphenyl phosphate
838-85-7
US $100.00-75.00 / kg
99%
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD

Diphenyl phosphate
838-85-7
US $29.00 / mL
99.95%
TargetMol Chemicals Inc.

Diphenyl phosphate
838-85-7
US $29.00 / mL
99.95%
TargetMol Chemicals Inc.

Diphenyl phosphate Spectrum

Diphenyl phosphate(838-85-7)MS Diphenyl phosphate(838-85-7)¹HNMR Diphenyl phosphate(838-85-7)¹³CNMR Diphenyl phosphate(838-85-7)IR1 Diphenyl phosphate(838-85-7)IR2 Diphenyl phosphate(838-85-7)Raman

838-85-7(Diphenyl phosphate)Related Search:

Zinc phosphate Ammonium dihydrogen phosphate Calcium phosphate Hydrogen Sodium Phosphate Monobasic Monohydrate

FERRIC PHOSPHATE Triphenyl phosphate Trisodium phosphate Triphenyl phosphite Creatine phosphate

Biphenyl 2-Ethylhexyl diphenyl phosphate Dibenzyl phosphate Sodium phosphate monobasic Lithium dihydrogen phosphate

DIMETHYL PHOSPHATE phosphate (1R,2R)-2-fluorocyclopropanecarboxylic acid

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DIPHENYL PHOSPHATE Diphenyl phosphate 99% PHOSPHORIC ACID DIPHENYL ESTER PHOSPHORIC ACID DIPLHENYL ESTER Diphenyl phosphate, 99.7% Phosphoric acid diphenyl Phosphoric acid hydrogen diphenyl ester Biphenyl Ester Diphenyl phosphate,99% diphenylhydrogenphosphate phenylphosphate((pho)2(ho)po) Diphenyl phosphate, 98+% DIPHENYLPHOSPHINE, 20% in heptane Phenol hydrogen phosphate Diphenyl phosphate, 99% 5GR Biapenem Impurity 21 DiphenylPhosphate> diphenyl hydrogen phosphat Sitafloxacin Impurity 29 Diphenyl phosphate 838-85-7 Diphenyl phosphate in methanol Diphenyl phosphate, 10 mM in DMSO Diphenyl phosphate, 97% 838-85-7 C12H11O4P C6H5O2POOH C12H10O4P Organic Phosphates/Phosphites Organic Building Blocks Reagents for Oligosaccharide Synthesis Phosphorus Compounds Building Blocks Aromatics Metabolites & Impurities Phosphorylating and Phosphitylating Agents Biochemistry Reagents for Oligosaccharide Synthesis Organic Phosphates/Phosphites Organic Building Blocks Phosphorus Compounds Aromatics, Metabolites & Impurities, Phosphorylating and Phosphitylating Agents