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
- Molecular Weight:
- 234.19
- MDL Number:
- MFCD00044497
- MOL File:
- 4712-55-4.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Diphenyl phosphite | D210803 | 100g | $56.1 |
| Diphenyl phosphite | D210803 | 500g | $86.4 |
| Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | D0907 | 25g | $18 |
| Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | D0907 | 100g | $31 |
| Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | D0907 | 500g | $68 |
| More product size | |||
| 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 |
n |
| 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 |
| InChI | 1S/C12H11O3P/c13-16(14-11-7-3-1-4-8-11)15-12-9-5-2-6-10-12/h1-10,16H |
| InChIKey | OGBPILLJZSJJRC-UHFFFAOYSA-N |
| SMILES | O=[PH](Oc1ccccc1)Oc2ccccc2 |
| LogP | 2.4 at 25℃ and pH7 |
| CAS DataBase Reference | 4712-55-4(CAS DataBase Reference) |
| FDA UNII | 5144JS6XUM |
| EPA Substance Registry System | Diphenyl phosphite (4712-55-4) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H315-H318-H335 | |||||||||
| Precautionary statements | P280-P301+P312+P330-P302+P352-P305+P351+P338+P310 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-37/38-41 | |||||||||
| Safety Statements | 26-39 | |||||||||
| RIDADR | 1760 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29209090 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Skin Irrit. 2 STOT SE 3 |
|||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
DIPHENYL PHOSPHITE price More Price(23)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D210803 | Diphenyl phosphite | 4712-55-4 | 100g | $56.1 | 2026-04-30 | Buy |
| Sigma-Aldrich | D210803 | Diphenyl phosphite | 4712-55-4 | 500g | $86.4 | 2026-04-30 | Buy |
| TCI Chemical | D0907 | Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | 4712-55-4 | 25g | $18 | 2026-04-30 | Buy |
| TCI Chemical | D0907 | Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | 4712-55-4 | 100g | $31 | 2026-04-30 | Buy |
| TCI Chemical | D0907 | Diphenyl Phosphite (contains ca. 5% Phenol) >75.0%(HPLC) | 4712-55-4 | 500g | $68 | 2026-04-30 | Buy |
DIPHENYL PHOSPHITE Chemical Properties,Uses,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
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-18192627656 | 1059@dideu.com | China | 3589 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +8617392709771 | 1097@dideu.com | China | 3995 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5235 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-18712993135 | sales01@tairunfaz.com | China | 8051 | 58 |
| HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | +86-15350851019; +8615350851019 | admin@86-ss.com | China | 999 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16513 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21588 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1803 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29817 | 58 |
View Lastest Price from DIPHENYL PHOSPHITE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-15 | DIPHENYL PHOSPHITE
4712-55-4
|
US $999.00-666.00 / kg | 1kg | 99% | 5000 | HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | |
 |
2026-04-17 | DIPHENYL PHOSPHITE
4712-55-4
|
US $2.20-8.80 / kg | 1kg | 99%min | 1000kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
 |
2026-03-20 | DIPHENYL PHOSPHITE
4712-55-4
|
US $10.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- DIPHENYL PHOSPHITE
4712-55-4
- US $999.00-666.00 / kg
- 99%
- HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
-
- DIPHENYL PHOSPHITE
4712-55-4
- US $2.20-8.80 / kg
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- DIPHENYL PHOSPHITE
4712-55-4
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
