- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: Chromone
- Price:
- Purity: 99.0%
- Stocking Period: 10 Day
- Contact: Yang
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Chromone
- Price: ￥228.0/1g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
491-38-3
491-38-3 structure
- Name: Chromone
- Chemical Name: chromone
- CAS Number: 491-38-3
- Molecular Formula: C9H6O2
- Molecular Weight: 146.143
- Create Date: 2018-07-03 20:09:21
- Modify Date: 2024-01-08 22:42:43
| Name | chromone |
|---|---|
| Synonyms |
1-Benzopyran-4-one
2,3-Benzo-4-pyrone Benzo-γ-pyrone 1,4-benopyrone 4H-Chromen-4-one T66 BO EVJ 1,4-benzopyrone 4-oxo-4H-1-benzopyran Benzo-g-pyrone benzopyran-4-one EINECS 207-737-9 4H-Benzo(b)pyran-4-one MFCD00024064 4-Chromone Chromone 4H-1-Benzopyran-4-one 4H-benzo[b]pyran-4-one Chromen-4-one |
| Density | 1.2±0.1 g/cm3 |
|---|---|
| Boiling Point | 238.5±33.0 °C at 760 mmHg |
| Melting Point | 55-60 °C(lit.) |
| Molecular Formula | C9H6O2 |
| Molecular Weight | 146.143 |
| Flash Point | 106.5±18.9 °C |
| Exact Mass | 146.036774 |
| PSA | 30.21000 |
| LogP | 1.38 |
| Vapour Pressure | 0.0±0.5 mmHg at 25°C |
| Index of Refraction | 1.595 |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
|
| Hazard Codes | Xn |
|---|---|
| Risk Phrases | 22 |
| Safety Phrases | S36/37/39-S26 |
| WGK Germany | 3 |
| RTECS | GB7887000 |
| HS Code | 2932999099 |
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |