2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene

Modify Date: 2025-09-18 10:46:48

2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene Structure
2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene structure
 Common Name 2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene
CAS Number 320784-74-5 Molecular Weight 256.340
Density 1.1±0.1 g/cm3 Boiling Point 330.9±42.0 °C at 760 mmHg
Molecular Formula C17H20O2 Melting Point N/A
MSDS N/A Flash Point 118.5±27.4 °C

 Names

Name 2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 330.9±42.0 °C at 760 mmHg
Molecular Formula C17H20O2
Molecular Weight 256.340
Flash Point 118.5±27.4 °C
Exact Mass 256.146332
LogP 4.31
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.559

 Synonyms

2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene
MFCD00555227
2H,5H-Pyrano[3,2-c][1]benzopyran, 2-ethynyl-3,4,4a,10b-tetrahydro-2,5,5-trimethyl-
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Chemsrc provides CAS#:320784-74-5 MSDS, density, melting point, boiling point, structure, etc. Its name is 2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene>> amp version: 2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene

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