Molecular Structure of Coelenteramine (CAS No.55779-48-1):

Molecular Formula: C₂₆H₂₁N₃O₃
Molecular Weight: 423.4632
CAS No: 55779-48-1
H bond acceptors: 6
H bond donors: 3
Freely Rotating Bonds: 7
Polar Surface Area: 54.37 Å²
Index of Refraction: 1.688
Molar Refractivity: 122.24 cm³
Molar Volume: 320.2 cm³
Surface Tension: 55.6 dyne/cm
Density: 1.32 g/cm³
Flash Point: 341.7 °C
Enthalpy of Vaporization: 98.13 kJ/mol
Boiling Point: 641.4 °C at 760 mmHg
Vapour Pressure: 4.77E-17 mmHg at 25°C
InChI: InChI=1/C₂₆H₂₁N₃O₃/c30-20-10-6-18(7-11-20)15-23-26(32)29-16-24(19-8-12-21(31)13-9-19)27-22(25(29)28-23)14-17-4-2-1-3-5-17/h1-13,16,27,30-31H,14-15H2
InChIKey: YHIPILPTUVMWQT-UHFFFAOYAO
Std. InChI: InChI=1S/C₂₆H₂₁N₃O₃/c30-20-10-6-18(7-11-20)15-23-26(32)29-16-24(19-8-12-21(31)13-9-19)27-22(25(29)28-23)14-17-4-2-1-3-5-17/h1-13,16,27,30-31H,14-15H2
Std. InChIKey: YHIPILPTUVMWQT-UHFFFAOYSA-N
Product Categories: Fluorescent Labels and Indicators;Fluorescent Labels Indicators
Classification Code: Indicators and Reagents;Luminescent Agents
IUPAC Name: 8-Benzyl-6-(4-hydroxyphenyl)-2-[(4-hydroxyphenyl)methyl]-7H-imidazo[1,2-a]pyrazin-3-one 

   Coelenteramine was first isolated from Aequorea victoria along with coelenteramide after coelenterates were stimulated to emit light.

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
F: 10

   Coelenteramine (CAS No.55779-48-1), its synonyms are 2-[(4-Hydroxyphenyl)methyl]-6-(4-hydroxyphenyl)-8-(phenylmethyl)-imdazo[1,2-a]pyrazin-3-(7H)-one ; 8-Benzyl-2-(4-hydroxybenzyl)-6-(4-hydroxyphenyl)imidazo[1,2-a]pyrazin-3(7H)-one  .