-
Name
GALLEIN
- EINECS 218-272-6
- CAS No. 2103-64-2
- Article Data16
- CAS DataBase
- Density 1.81g/cm3
- Solubility
- Melting Point >300°C
- Formula C20H12 O7
- Boiling Point 687.4°Cat760mmHg
- Molecular Weight 364.311
- Flash Point 255.2°C
- Transport Information
- Appearance
- Safety
- Risk Codes
-
Molecular Structure
- Hazard Symbols
- Synonyms Gallein(6CI,8CI);Alizarine violet;C.I. 45445;C.I. Mordant Violet 25;Mordant Violet25;NSC 56445;NSC 622478;NSC 8668;Pyrogallolphthalein;
- PSA 116.45000
- LogP 3.07700
Gallein Chemical Properties
IUPAC Name: 3',4',5',6'-Tetrahydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
Empirical Formula: C20H12O7
Molecular Weight: 364.3051
Einecs: 218-272-6
Freely Rotating Bonds: 4
Polar Surface Area: 72.45 Å2
Index of Refraction: 1.865
Molar Refractivity: 91.05 cm3
Molar Volume: 201.1 cm3
Polarizability: 36.09 ×10-24 cm3
Surface Tension: 123.1 dyne/cm
Density: 1.81 g/cm3
Flash Point: 255.2 °C
Enthalpy of Vaporization: 104.4 kJ/mol
Boiling Point: 687.4 °C at 760 mmHg
Vapour Pressure: 1.57E-19 mmHg at 25°C
The Cas Register Number of Gallein is 2103-64-2.The chemical synonyms of Gallein (CAS NO.2103-64-2) are 3',4',5',6'-Tetrahydroxyspiro(isobenzofuran-1(3H),9'-(9H)xanthene)-3-one and Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one,
3',4',5',6'-tetrahydroxy- .The molecular structure of Gallein (CAS NO.2103-64-2) is
.bmp)
.
Gallein Uses
Gallein (CAS NO.2103-64-2) is used as acid-base indicator agent .
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