3,3'-spirobi[3H-naphtho[2,1-b]pyran]
Suppliers
Names
[ CAS No. ]:
178-10-9
[ Name ]:
3,3'-spirobi[3H-naphtho[2,1-b]pyran]
[Synonym ]:
EINECS 205-869-1
3,3'-Spirobi<3H-naphtho<2,1-b>pyran>
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%