- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 5H-Cyclopenta[2,1-b:3,4-b']dipyridin-5-one
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 5H-Cyclopenta[2,1-b:3,4-b']dipyridin-5-one
- Price: ￥1918.0/5g ￥518.0/1g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 4,5-Diazafluoren-9-one
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
50890-67-0
50890-67-0 structure
- Name: 5H-Cyclopenta[2,1-b:3,4-b']dipyridin-5-one
- Chemical Name: 4,5-Diazafluoren-9-one
- CAS Number: 50890-67-0
- Molecular Formula: C11H6N2O
- Molecular Weight: 182.178
- Catalog: Chemical reagent Organic reagent Polycyclic compound
- Create Date: 2018-07-30 10:29:17
- Modify Date: 2025-08-25 14:04:31
| Name | 4,5-Diazafluoren-9-one |
|---|---|
| Synonyms |
5H-Cyclopenta[2,1-b:3,4-b']dipyridin-5-one
5H-Cyclopenta[1,2-b:5,4-b']dipyridin-5-one 4,5-DIAZAFLUOREN-9-ONE MFCD00046892 5H-Pyrido[3',2':4,5]cyclopenta[1,2-b]pyridin-5-one |
| Density | 1.4±0.1 g/cm3 |
|---|---|
| Boiling Point | 396.3±17.0 °C at 760 mmHg |
| Melting Point | 214-217ºC(lit.) |
| Molecular Formula | C11H6N2O |
| Molecular Weight | 182.178 |
| Flash Point | 196.1±27.4 °C |
| Exact Mass | 182.048019 |
| PSA | 42.85000 |
| LogP | 0.98 |
| Vapour Pressure | 0.0±0.9 mmHg at 25°C |
| Index of Refraction | 1.689 |
| Water Solubility | Soluble in dichloromethane, tetrahydrofuran, chloroform, benzene, toluene and polar organic solvents. Insoluble in diethyl ether and alkanes. |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Precautionary Statements | P261-P305 + P351 + P338 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
| Hazard Codes | Xi |
| Risk Phrases | R36/37/38 |
| Safety Phrases | 26-37/39 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 2933399090 |
|
~56%
50890-67-0 |
| Literature: Keshtov; Pozin; Marochkin; Perevalov; Petrovskii; Blagodatskikh; Khokhlov Doklady Chemistry, 2012 , vol. 442, # 2 p. 50 - 56 |
|
~61%
50890-67-0 |
| Literature: Gillard, R. D.; Houghton, Roy P.; Tucker, John N. Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 1980 , p. 2102 - 2107 |
|
~65%
50890-67-0 |
| Literature: Ferreira, Sabrina B.; Kaiser, Carlos R.; Ferreira, Vitor F. Synlett, 2008 , # 17 p. 2625 - 2628 |
|
~20%
50890-67-0 |
| Literature: Baxter, Paul N. W.; Connor, Joseph A.; Wallis, John D.; Povey, David C.; Powell, Anne K. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1992 , # 13 p. 1601 - 1606 |
|
~%
50890-67-0 |
| Literature: Gillard, R. D.; Houghton, Roy P.; Tucker, John N. Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 1980 , p. 2102 - 2107 |
|
~%
Detail
|
| Literature: Inglett; Smith Journal of the American Chemical Society, 1950 , vol. 72, p. 842 |
| Precursor 7 | |
|---|---|
| DownStream 0 | |
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |