Rose Bengal
[CAS# 11121-48-5]

Identification

• Classification: Food additive >> Colorant >> Edible synthetic pigment
• Name: Rose Bengal
• Synonyms: Dipotassium 2,3,4,5-Tetrachloro-6-(2,4,5,7-Tetraiodo-3-Oxido-6-Oxo-Xanthen-9-Yl)Benzoate; Dipotassium 2,3,4,5-Tetrachloro-6-(2,4,5,7-Tetraiodo-3-Oxido-6-Oxo-9-Xanthenyl)Benzoate; Dipotassium 2,3,4,5-Tetrachloro-6-(2,4,5,7-Tetraiodo-3-Keto-6-Oxido-Xanthen-9-Yl)Benzoate
• Molecular Formula: C₂₀H₂Cl₄I₄K₂O₅
• Molecular Weight: 1049.86
• CAS Registry Number: 11121-48-5
• SMILES: C3=C2C(=C1C(=C(I)C(=O)C(=C1)I)OC2=C(I)C(=C3I)[O-])C4=C(Cl)C(=C(Cl)C(=C4C([O-])=O)Cl)Cl.[K+].[K+]
• InChI: 1S/C20H4Cl4I4O5.2K/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28;;/h1-2,29H,(H,31,32);;/q;2*+1/p-2
• InChIKey: AZJPTIGZZTZIDR-UHFFFAOYSA-L

Properties

• Boiling point: 757.8°C at 760 mmHg (Cal.)
• Flash point: 412.1°C (Cal.)

Safety Data

• Safety Description: Do not breathe dust.