Erythrosin b

• CAS: 16423-68-0
• Catalog Number: ACM16423680
• Category: Other Products
• Molecular Weight: 879.9g/mol
• Molecular Formula: C20H6I4Na2O5
• Description: Red powder or granules.
• IUPAC Name: disodium;2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
• SMILES: C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)I)[O-])I)I)[O-])I.[Na+].[Na+]
• InChI: InChI=1S/C20H8I4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;/q;2*+1/p-2
• InChI Key: RAGZEDHHTPQLAI-UHFFFAOYSA-L
• Melting Point: >300°C (Decomposes)
• Flash Point: 373°C
• Appearance: Maroon powder
• Application: Erythrosin B serves as a versatile color additive and biological stain, primarily characterized as a red to brown powder. This compound, known chemically as the disodium salt of 2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydroxanthen-9-yl)benzoic acid, dissolves in water to produce a neutral red solution. Notably, under acidic conditions, it forms a yellow-brown precipitate, whereas it precipitates red in basic solutions. When mixed with concentrated sulfuric acid, a brown-yellow solution forms, releasing iodine and yielding a free acid precipitate upon heating. Erythrosin B is widely utilized across various applications, including dietary supplements, confectionery, dairy products, and bakery goods, indicating its importance in providing vibrant coloration in these items.
• Assay: 0.99
• Complexity: 645
• Covalently-Bonded Unit Count: 3
• EC Number: 240-474-8;240-474-8
• Exact Mass: 879.6189g/mol
• Formal Charge: 0
• H-Bond Acceptor: 5
• H-Bond Donor: 0
• Heavy Atom Count: 31
• Monoisotopic Mass: 879.6189g/mol
• Packaging: 100 g
• Rotatable Bond Count: 0
• Stability: Stable. Incompatible with strong oxidizing agents.