DIPHENYL PHOSPHITE

Product Name: DIPHENYL PHOSPHITE
CAS No.: 4712-55-4
Chemical Name: DIPHENYL PHOSPHITE
Synonyms: DIPHENYL PHOSPHONATE;DIPHENYL HYDROGEN PHOSPHITE;NSC 43786;Weston DPP;JADEADD DPP;Doverphos 213;Doverphos DPP;TRUELICHT DPP;Antioxidant DPP;DIPHENYL PHOSPHITE
CBNumber: CB0123925
Molecular Formula: C12H11O3P
Formula Weight: 234.19
MOL File: 4712-55-4.mol

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DIPHENYL PHOSPHITE Property

Melting point:: 12 °C (lit.)
Boiling point:: 218-219 °C/26 mmHg (lit.)
Density: 1.223 g/mL at 25 °C (lit.)
vapor density: 8.1 (vs air)
vapor pressure: 5 mm Hg ( 140 °C)
refractive index: n20/D 1.558(lit.)
Flash point:: 350 °F
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
form: Liquid
Specific Gravity: 1.223
color: Clear
BRN: 2051909
InChIKey: OGBPILLJZSJJRC-UHFFFAOYSA-N
LogP: 2.4 at 25℃ and pH7
CAS DataBase Reference: 4712-55-4(CAS DataBase Reference)
EPA Substance Registry System: Diphenyl phosphite (4712-55-4)

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Safety

Hazard Codes: Xn
Risk Statements: 22-37/38-41
Safety Statements: 26-39
RIDADR: 1760
WGK Germany: 3
F: 21
HazardClass: 8
PackingGroup: III
HS Code: 29209090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H318Causes serious eye damage

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: D210803
Product name: Diphenyl phosphite
Packaging: 100g
Price: $52.7
Updated: 2025/07/31

Sigma-Aldrich

Product number: D210803
Product name: Diphenyl phosphite
Packaging: 500g
Price: $81.1
Updated: 2025/07/31

TCI Chemical

Product number: D0907
Product name: Diphenyl Phosphite (contains ca. 5% Phenol)
Purity: >75.0%(HPLC)
Packaging: 25g
Price: $16
Updated: 2025/07/31

TCI Chemical

Product number: D0907
Product name: Diphenyl Phosphite (contains ca. 5% Phenol)
Purity: >75.0%(HPLC)
Packaging: 100g
Price: $28
Updated: 2025/07/31

TCI Chemical

Product number: D0907
Product name: Diphenyl Phosphite (contains ca. 5% Phenol)
Purity: >75.0%(HPLC)
Packaging: 500g
Price: $62
Updated: 2025/07/31

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DIPHENYL PHOSPHITE Chemical Properties,Usage,Production

Chemical Properties

clear liquid

Uses

Diphenyl Phosphite is a reactant used in the synthesis of α-hydroxyphosphonates and α-hydroxyphosphinates for their antioxidant and antimicrobial activity.

Synthesis

2310-89-6

108-95-2

4712-55-4

In a three-necked round-bottomed flask equipped with a mechanical stirrer, a reflux condenser and a dropping funnel, the first P-O component (PIII-OH) is added under nitrogen protection. This P-O component (see column 5 of Table 1) may be selected from H3PO3, monoalkyl phosphite or mixtures thereof and may additionally comprise dialkyl phosphite. Subsequently, the first P-O component is heated to the temperature specified in column 11 of Table 1 (T° step a) for step a). Next, the second P-O component (see column 6 of Table 1) is added while maintaining the appropriate temperature. The mixture was allowed to react for the time indicated in column 13 of Table 1 (reaction time step a), followed by step b). The alcohol R1-OH (see column 3 of Table 1) is then added dropwise while maintaining the temperature specified in column 12 of Table 1 (T° step b). After the mixture was reacted for the time indicated in column 14 of Table 1 (reaction time b), it was cooled to room temperature and analyzed by 31P NMR.

Purification Methods

Diphenyl Phosphite can be purified by distillation. Best done in small batches since decomposition frequently occurs. Phenol can be substantially removed by heating at 150 °C at water pump vacuum.

References

[1] Patent: EP2581378, 2013, A1. Location in patent: Paragraph 0038; 0039; 0043

DIPHENYL PHOSPHITE Preparation Products And Raw materials

Raw materials

Preparation Products

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DIPHENYL PHOSPHITE Suppliers

Americas 1 Belgium 1 Canada 1 China 165 Europe 1 Germany 3 India 12 Japan 9 Switzerland 2 United Kingdom 7 United States 31 Global 233

Carbosynth

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Fisher Scientific Uk Ltd.

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Biosynth Carbosynth

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Leancare Ltd.

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MOLEKULA Ltd.

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CARBONE SCIENTIFIC CO.,LTD

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VWR International

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View Lastest Price from DIPHENYL PHOSPHITE manufacturers

Shaanxi Dideu New Materials Co. Ltd

Product: DIPHENYL PHOSPHITE 4712-55-4
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98
Supply Ability: 10000KGS
Release date: 2025-11-19

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: DIPHENYL PHOSPHITE 4712-55-4
Price: US $2.20-8.80/kg
Min. Order: 1kg
Purity: 99%min
Supply Ability: 1000kg
Release date: 2025-09-08

Shaanxi Dideu Medichem Co. Ltd

Product: Z-Glu-OMe 4712-55-4
Price: US $1.00-4.00/G
Min. Order: 1G
Purity: 99%
Supply Ability: 1KG
Release date: 2025-05-19

4712-55-4, DIPHENYL PHOSPHITERelated Search:

Triphenyl phosphate Glycol sulfite Dimethyl phosphite Triethyl phosphite DI-N-PROPYL SULFITE DIAMYL SULFITE TETRAETHYL ETHYLENEDIPHOSPHONATE DIETHYL ETHYLIDENEMALONATE GLYOXAL SODIUM BISULFITE SODIUM PHOSPHITE-5-HYDRATE Monopotassium phosphite LINOLENIC ACID ETHYL ESTER PHOSPHOROUS ACID TRI-O-CRESYL ESTER Dibenzyl phosphite METHYL LINOLENATE Diisopropyl phosphite Phosphorous acid, bis(1-methylethyl) ester Dimethyl sulfite

Diphenyl phosphite, contains varying amounts of phenol and (C6H5O)3P

Phosphonic acid diphenyl

Phosphorous acid diphenyl

Diphenyl Phosphite (contains 5% Phenol at maximum)

Diphenyl Phosphonate Phosphonic Acid Diphenyl Ester Phosphorous Acid Diphenyl Ester

(contains 5% Phenol at MaxiMuM)

Diphenyl Phosphite&nbsp

Diphenyl phosphite, contains varying aMounts of phenol and (C6H5O)3P 5GR

NSC 43786

Diphenyl Phosphite (contains ca. 5% Phenol)

DIPHENYL PHOSPHITE

DIPHENYL PHOSPHONATE

DIPHENYL HYDROGEN PHOSPHITE

Diphenyl phosphite, contains varying amounts of phenol and (C6H5)3P

PHOSPHONIC ACID DIPHENYL ESTER

PHOSPHOROUS ACID DIPHENYL ESTER

Diphenoxyphosphine oxide

Doverphos 213

Doverphos DPP

Phenyl phosphonate ((PhO)2HPO)

Weston DPP

Diphenyl phosphite(Technical)

Diphenyl phosphite, 80%, for synthesis, contains 5% Phenol at maximum

Diphenyl Phosphite (contains 5% Phenol at maximum)&gt

TRUELICHT DPP

JADEADD DPP

TIANFU-CHEM CAS NO.4712-55-4 DIPHENYL PHOSPHITE

oxo(diphenoxy)phosphanium

Antioxidant DPP

Diphenyl Phosphite,contains 5% Phenol at maximum), ≥ 80.0%

Phosphite diphenylester

Diphenyl Phosphite (contains about 5% Phenol)

4712-55-4

4712-55-4-1

C6H5O2POH

C12H11O3P

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