5,7-difluorochroman-4-one
- CAS No.
- 844648-22-2
- Chemical Name:
- 5,7-difluorochroman-4-one
- Synonyms
- Tegoprazan Impurity 10;5,7-difluorochroman-4-one;Tigola produces impurity 10;5,7-difluoro-2,3-dihydrochromen-4-one;5,7-Difluoro-3,4-dihydro-4H-chromen-4-one;5,7-Difluoro-2,3-dihydro-4H-chromen-4-one;5,7-DIFLUORO-2,3-DIHYDRO-1-BENZOPYRAN-4-ONE;5,7-Difluoro-2,3-dihydro-4H-1-benzopyran-4-one;5,7-difluoro-3,4-dihydro-2H-1-benzopyran-4-one;4H-1-Benzopyran-4-one, 5,7-difluoro-2,3-dihydro-
- CBNumber:
- CB62489782
- Molecular Formula:
- C9H6F2O2
- Molecular Weight:
- 184.14
- MDL Number:
- MFCD11518474
- MOL File:
- 844648-22-2.mol
- MSDS File:
- SDS
| Boiling point | 283℃ |
|---|---|
| Density | 1.392 |
| Flash point | 121℃ |
| storage temp. | Sealed in dry,Room Temperature |
| Appearance | White to light yellow Solid |
| InChI | InChI=1S/C9H6F2O2/c10-5-3-6(11)9-7(12)1-2-13-8(9)4-5/h3-4H,1-2H2 |
| InChIKey | OJVRCPGUGZXUAP-UHFFFAOYSA-N |
| SMILES | C1OC2=CC(F)=CC(F)=C2C(=O)C1 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| HS Code | 2932990090 |
5,7-difluorochroman-4-one price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Apolloscientific | PC201320 | 5,7-Difluorochroman-4-one 95% | 844648-22-2 | 250mg | $90 | 2021-12-16 | Buy |
| AK Scientific | J55733 | 5,7-Difluorochroman-4-one | 844648-22-2 | 250mg | $95 | 2021-12-16 | Buy |
| Apolloscientific | PC201320 | 5,7-Difluorochroman-4-one 95% | 844648-22-2 | 1g | $225 | 2021-12-16 | Buy |
| AK Scientific | J55733 | 5,7-Difluorochroman-4-one | 844648-22-2 | 1g | $238 | 2021-12-16 | Buy |
| SynQuest Laboratories | 2H17-3-0B | 5,7-Difluorochroman-4-one 95% | 844648-22-2 | 1g | $360 | 2021-12-16 | Buy |
5,7-difluorochroman-4-one Chemical Properties,Uses,Production
Uses
5,7-Difluorochroman-4-one is used as a reagent in the prepaation of tetrazolinone compounds,used as pest control agents.
Synthesis
844648-19-7
844648-22-2
At 50 °C, 3-(3,5-difluorophenoxy)propionic acid (20.0 g, 99 mmol) was added to 60 mL of concentrated sulfuric acid in batches and stirred until completely dissolved. The resulting yellow-green solution was stirred continuously at 50 °C for 1.5 hours. Upon completion of the reaction, the mixture was cooled to room temperature and slowly poured into 800 mL of ice water. After standing for 1 hour, the colorless precipitate was collected by filtration and washed well with cold water. The resulting 5,7-difluorobenzodihydropyran-4-one was dried over phosphorus pentoxide to give 15.69 g of colorless solid in 86% yield.
References
[1] Patent: WO2008/151927, 2008, A2. Location in patent: Page/Page column 61
[2] Patent: KR2018/11830, 2018, A. Location in patent: Paragraph 0061; 0076; 0077
[3] Patent: US2005/38032, 2005, A1. Location in patent: Page/Page column 31
5,7-difluorochroman-4-one Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| HANGZHOU LEAP CHEM CO., LTD. | +86-571-87711850 | market18@leapchem.com | China | 43339 | 58 |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 9029 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21620 | 55 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| ENBRIDGE PHARMTECH CO., LTD. | +8613812269233 | tinayang@enbridgepharm.com | China | 313 | 58 |
| SHANGHAI T&W PHARMACEUTICAL CO., LTD. | +86-021-61551413 +8618813727289 | contact@trustwe.com | China | 5744 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21142 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12151 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +8613203830695 | laboratory@coreychem.com | China | 30229 | 58 |
View Lastest Price from 5,7-difluorochroman-4-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-06-13 | 5,7-difluorochroman-4-one
844648-22-2
|
US $2.20-8.80 / kg | 1kg | 99%min | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD |
-
- 5,7-difluorochroman-4-one
844648-22-2
- US $2.20-8.80 / kg
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
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