Diphenyl phosphate
- 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
| 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) |
| form | Crystalline Powder |
| pka | 1.12±0.50(Predicted) |
| 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 | 3 | |||||||||
| RTECS | TC5470000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29190090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Diphenyl phosphate price More Price(66)
| 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 |
| Biosynth | FD167116 | Diphenyl phosphate | 838-85-7 | 100g | $217 | 2026-06-04 | 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 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Taizhou Yichuan Chemical Industry Co., Ltd | 0576-88652780 13906597690 | 879507987@qq.com | China | 20 | 58 |
| Guangdong Wengjiang Chemical Reagent Co., Ltd. | 0751-2886766 13927870850 | 3001267247@qq.com | China | 9939 | 58 |
| HEZE DIJADE CHEMCAL CORPORATION | 0530-7157019 18678572026 | 3109950577@qq.com | China | 18 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| ShangHai DEMO Chemical Co.,Ltd | 400-021-7337 2355568890 | sales@demochem.com | China | 2569 | 57 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
Related articles
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- Dec 17,2025
View Latest Price from Diphenyl phosphate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-14 | Diphenyl phosphate
838-85-7
|
$75.00-100.00 | 1kg | 99% | 5000 | HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | |
 |
2026-09-02 | Diphenyl phosphate
838-85-7
|
$1.00-100.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-05-28 | Diphenyl Phosphate
838-85-7
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD |
-
- Diphenyl phosphate
838-85-7
- $75.00-100.00
- 99%
- HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
-
- Diphenyl phosphate
838-85-7
- $1.00-100.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Diphenyl Phosphate
838-85-7
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
