ChemicalBook >> CAS DataBase List >>4-(Diphenylphosphino)benzoic acid
4-(Diphenylphosphino)benzoic acid
- CAS No.
- 2129-31-9
- Chemical Name:
- 4-(Diphenylphosphino)benzoic acid
- Synonyms
- 4-(Diphenylphosphino)benzoic acid;p-(Diphenylphosphino)benzoic acid;4-Diphenylphosphanyl-benzoesaeure;(4-Carboxyphenyl)diphenylphosphine;4-di(phenyl)phosphanylbenzoic acid;Diphenyl(p-carboxyphenyl) phosphine;Benzoic acid, 4-(diphenylphosphino)-;4-(Diphenylphosphino)benzoic acid 97%;4-(Diphenylphosphino)benzoic Acid >4-(phenylphosphino)benzenemacetic acid
- CBNumber:
- CB3237779
- Molecular Formula:
- C19H15O2P
- Molecular Weight:
- 306.3
- MDL Number:
- MFCD00407264
- MOL File:
- 2129-31-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-09-12 18:51:51
| Melting point | 157-160 °C (lit.) |
|---|---|
| Boiling point | 448.0±28.0 °C(Predicted) |
| storage temp. | Inert atmosphere,Room Temperature |
| pka | 4.01±0.10(Predicted) |
| form | Crystalline Powder |
| color | White to yellow |
| InChI | 1S/C19H15O2P/c20-19(21)15-11-13-18(14-12-15)22(16-7-3-1-4-8-16)17-9-5-2-6-10-17/h1-14H,(H,20,21) |
| InChIKey | GXMHDTPYKRTARV-UHFFFAOYSA-N |
| SMILES | OC(=O)c1ccc(cc1)P(c2ccccc2)c3ccccc3 |
| CAS DataBase Reference | 2129-31-9 |
| UNSPSC Code | 12352002 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| target organs | Respiratory system |
| PPE | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39 |
| WGK Germany | 3 |
| HS Code | 29163990 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
4-(Diphenylphosphino)benzoic acid price More Price(45)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 401595 | 4-(Diphenylphosphino)benzoic acid 97% | 2129-31-9 | 1g | $103 | 2026-04-30 | Buy |
| Sigma-Aldrich | 401595 | 4-(Diphenylphosphino)benzoic acid 97% | 2129-31-9 | 5g | $225 | 2026-04-30 | Buy |
| TCI Chemical | D3243 | 4-(Diphenylphosphino)benzoic Acid >97.0%(HPLC)(T) | 2129-31-9 | 1g | $157 | 2026-04-30 | Buy |
| TCI Chemical | D3243 | 4-(Diphenylphosphino)benzoic Acid >97.0%(HPLC)(T) | 2129-31-9 | 5g | $473 | 2026-04-30 | Buy |
| Apolloscientific | OR51829 | 4-(Diphenylphosphino)benzoic acid 98% | 2129-31-9 | 1g | $24 | 2026-06-04 | Buy |
4-(Diphenylphosphino)benzoic acid Chemical Properties, Uses, Production
Uses
4-(Diphenylphosphino)benzoic acid can be used as a ligand in the synthesis of:
- Organostannoxane-supported palladium nanoparticles. The resulting catalysts show high activity and selectivity in Suzuki-coupling reactions.
- Polymetallic ruthenium-zinc complex catalyst for the hydrogenation of levulinic acid to γ-valerolactone.
reaction suitability
reaction type: Buchwald-Hartwig Cross Coupling Reaction
reaction type: Heck Reaction
reaction type: Hiyama Coupling
reaction type: Negishi Coupling
reaction type: Sonogashira Coupling
reaction type: Stille Coupling
reaction type: Suzuki-Miyaura Coupling
reagent type: ligand
4-(Diphenylphosphino)benzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 121)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| 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 |
| Beijing Donghualituo Techonlogy Development Co.,Ltd. | 010-88425576 | sales@dhltchem.com | China | 793 | 59 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Nanjing Chemlin Chemical Co., Ltd | 025-83697070 13770331960 | info@chemlin.com.cn | China | 16305 | 64 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Syntechem Co.,Ltd | info@syntechem.com | China | 12973 | 57 |
View Latest Price from 4-(Diphenylphosphino)benzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-08-07 | 4-(Diphenylphosphino)benzoic Acid
2129-31-9
|
$1.00 | 1KG | 99% | 20 tons | Shaanxi Dideu Medichem Co. Ltd | |
![]() |
2020-01-03 | 4-(DIPHENYLPHOSPHINO)BENZOIC ACID
2129-31-9
|
$6.60 | 1KG | 97%-99% | 1kg -1000kg | Career Henan Chemical Co |
-

- 4-(Diphenylphosphino)benzoic Acid
2129-31-9
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-

- 4-(DIPHENYLPHOSPHINO)BENZOIC ACID
2129-31-9
- $6.60
- 97%-99%
- Career Henan Chemical Co
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2129-31-9
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