178-10-9
178-10-9 structure
- Name: 3,3'-spirobi[3H-naphtho[2,1-b]pyran]
- Chemical Name: 3,3'-spirobi[benzo[f]chromene]
- CAS Number: 178-10-9
- Molecular Formula: C25H16O2
- Molecular Weight: 348.39300
- Create Date: 2017-05-10 04:59:43
- Modify Date: 2024-02-01 09:17:45
| Name | 3,3'-spirobi[benzo[f]chromene] |
|---|---|
| Synonyms |
EINECS 205-869-1
3,3'-Spirobi<3H-naphtho<2,1-b>pyran> |
| Density | 1.34g/cm3 |
|---|---|
| Boiling Point | 593.5ºC at 760 mmHg |
| Molecular Formula | C25H16O2 |
| Molecular Weight | 348.39300 |
| Flash Point | 300.1ºC |
| Exact Mass | 348.11500 |
| PSA | 18.46000 |
| LogP | 6.20070 |
| Vapour Pressure | 1.98E-13mmHg at 25°C |
| Index of Refraction | 1.78 |
| HS Code | 2902909090 |
|---|
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |