178-10-9 3,3'-spirobi[3H-naphtho[2,1-b]pyran]

product Name	3,3'-spirobi[3H-naphtho[2,1-b]pyran]
CAS No	178-10-9
Synonyms	3,3'-Spirobi(3H-naphtho(2,1-b)pyran); 3,3'-spirobi[benzo[f]chromene]
Molecular Formula	C₂₅H₁₆O₂
Molecular Weight	348.3933
InChI	InChI=1/C25H16O2/c1-3-7-19-17(5-1)9-11-23-21(19)13-15-25(26-23)16-14-22-20-8-4-2-6-18(20)10-12-24(22)27-25/h1-16H
EINECS	205-869-1
Molecular Structure
Density	1.34g/cm³
Boiling point	593.5°C at 760 mmHg
Refractive index	1.78
Flash point	300.1°C
Vapour Pressur	1.98E-13mmHg at 25°C
Hazard Symbols
Risk Codes
Safety Description