Acid green 3

Chemical Information
Guinee green B is an organic sodium salt having 3-[(ethyl{4-[(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)(phenyl)methylidene]cyclohexa-2,5-dien-1-ylidene}azaniumyl)methyl]benzene-1-sulfonate. Used as a substitute for Light green SF yellowish in Masson's trichrome, although it is prone to fade. Previously used as a food dye but is now no longer approved. It has a role as a fluorochrome, a histological dye and a food colouring. It contains a Guinee green B(1-).
| CAS Number | 4680-78-8 |
| PubChem CID | 20803 |
| IUPAC Name | sodium 3-[[N-ethyl-4-[[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]-phenylmethyl]anilino]methyl]benzenesulfonate |
| Molecular Formula | C37H35N2NaO6S2 |
| Molecular Weight | 690.8 |
| Topological Polar Surface Area | 137 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 9 |
| Heavy Atom Count | 48 |
| Formal Charge | 0 |
| Complexity | 1250 |
| Property | Value |
|---|---|
| Molecular Weight | 690.8 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 9 |
| Exact Mass | 690.18342347 |
| Monoisotopic Mass | 690.18342347 |
| Topological Polar Surface Area | 137 Ų |
| Heavy Atom Count | 48 |
| Formal Charge | 0 |
| Complexity | 1250 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
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