3,3'-spirobi[3H-naphtho[2,1-b]pyran]

Modify Date: 2024-02-01 09:17:45

3,3'-spirobi[3H-naphtho[2,1-b]pyran] Structure
3,3'-spirobi[3H-naphtho[2,1-b]pyran] structure
Common Name 3,3'-spirobi[3H-naphtho[2,1-b]pyran]
CAS Number 178-10-9 Molecular Weight 348.39300
Density 1.34g/cm3 Boiling Point 593.5ºC at 760 mmHg
Molecular Formula C25H16O2 Melting Point N/A
MSDS N/A Flash Point 300.1ºC

 Names

Name 3,3'-spirobi[benzo[f]chromene]
Synonym More Synonyms

 Chemical & Physical Properties

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

 Safety Information

HS Code 2902909090

 Customs

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%

 Synonyms

EINECS 205-869-1
3,3'-Spirobi<3H-naphtho<2,1-b>pyran>
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