4-Phenylpyridine
- CAS No.
- 939-23-1
- Chemical Name:
- 4-Phenylpyridine
- Synonyms
- Pyridine, 4-phenyl-;p-Phenylpyridine;4-phenyl-pyridin;NSC 70375;NSC 77935;4-AZABIPHENYL;4-Phenylpridine;4-PHENYLPYRIDINE;4-PYRIDYLBENZENE;4-Aza-1,1'-biphenyl
- CBNumber:
- CB3187119
- Molecular Formula:
- C11H9N
- Molecular Weight:
- 155.2
- MDL Number:
- MFCD00006420
- MOL File:
- 939-23-1.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 4-Phenylpyridine 97% | P33429 | 5g | $103 |
| 4-Phenylpyridine 97% | P33429 | 25g | $326 |
| 4-Phenylpyridine >98.0%(GC) | P0162 | 5g | $54 |
| 4-Phenylpyridine >98.0%(GC) | P0162 | 25g | $154 |
| 4-Phenylpyridine | TRC-P336505-1G | 1g | $179 |
| More product size | |||
| Melting point | 69-73 °C (lit.) |
|---|---|
| Boiling point | 274-275 °C (lit.) |
| Density | 1.1088 (rough estimate) |
| refractive index | 1.6210 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform, Methanol |
| form | Crystalline Powder |
| pka | 5.45±0.10(Predicted) |
| color | Light yellow to beige |
| Water Solubility | SOLUBLE |
| BRN | 110490 |
| InChI | 1S/C11H9N/c1-2-4-10(5-3-1)11-6-8-12-9-7-11/h1-9H |
| InChIKey | JVZRCNQLWOELDU-UHFFFAOYSA-N |
| SMILES | c1ccc(cc1)-c2ccncc2 |
| LogP | 2.590 |
| CAS DataBase Reference | 939-23-1(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 452KD9YCG7 |
| NIST Chemistry Reference | 4-phenyl-pyridine(939-23-1) |
| EPA Substance Registry System | 4-Phenylpyridine (939-23-1) |
| 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-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 | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UT7141000 | |||||||||
| F | 10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | IRRITANT, KEEP COLD | |||||||||
| HS Code | 29333990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
4-Phenylpyridine price More Price(48)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P33429 | 4-Phenylpyridine 97% | 939-23-1 | 5g | $103 | 2026-04-30 | Buy |
| Sigma-Aldrich | P33429 | 4-Phenylpyridine 97% | 939-23-1 | 25g | $326 | 2023-06-20 | Buy |
| TCI Chemical | P0162 | 4-Phenylpyridine >98.0%(GC) | 939-23-1 | 5g | $54 | 2026-04-30 | Buy |
| TCI Chemical | P0162 | 4-Phenylpyridine >98.0%(GC) | 939-23-1 | 25g | $154 | 2026-04-30 | Buy |
| TRC | TRC-P336505-1G | 4-Phenylpyridine | 939-23-1 | 1g | $179 | 2026-06-03 | Buy |
4-Phenylpyridine Chemical Properties,Uses,Production
Chemical Properties
LIGHT YELLOW TO BEIGE CRYSTALLINE POWDER
Uses
4-Phenylpyridine is a useful synthetic intermediate. 4-Phenylpyridine has been shown to induce inhibition of mitochondrial respiration in mice.
Definition
ChEBI: 4-Phenylpyridine is a phenylpyridine.
Synthesis Reference(s)
Journal of the American Chemical Society, 78, p. 1702, 1956 DOI: 10.1021/ja01589a060
Synthetic Communications, 21, p. 619, 1991 DOI: 10.1080/00397919108020828
Tetrahedron Letters, 36, p. 5247, 1995 DOI: 10.1016/0040-4039(95)00983-J
Enzyme inhibitor
This substituted pyridine (FW = 155.20 g/mol; CAS 939-23-1; M.P. = 69- 73°C; B.P. = 274-275°C), which occurs naturally and is likewise a manmade pollutant, inhibits human placental aromatase, Ki = 0.36 μM, monoamine oxidase, and NADH dehydrogenase. 4-Phenylpyridine is also an effective inhibitor of mitochondrial complex I. Note that it both occurs naturally and is an environmental pollutant.
4-Phenylpyridine Preparation Products And Raw materials
Raw materials
1of3
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29626 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32998 | 60 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 +86-18019713315 | info@accelachem.com | United States | 21189 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63645 | 58 |
| CONIER CHEM AND PHARMA LIMITED | sales@conier.com | China | 49906 | 58 | |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9631 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 | marketing1@neostarunited.com | China | 8827 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17339 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +86-13203830695 | laboratory@coreychem.com | China | 30203 | 58 |
View Lastest Price from 4-Phenylpyridine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-30 | 4-Phenylpyridine
939-23-1
|
1KG | 98% | 10000kg | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2025-11-18 | 4-Phenylpyridine
939-23-1
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2021-07-13 | 4-phenylpyridine
939-23-1
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
- 4-Phenylpyridine
939-23-1
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- 4-Phenylpyridine
939-23-1
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 4-phenylpyridine
939-23-1
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
