Light Green SF Yellowish (formerly Food Green No.2) [as an indicator for assay of Food Yellow No.4 (Tartrazine)]

CAS: 5141-20-8

Ref. 3B-L0141

Product Information

• Name: Light Green SF Yellowish (formerly Food Green No.2) [as an indicator for assay of Food Yellow No.4 (Tartrazine)]
• Synonyms: 3-[(ethyl{(1E,4E)-4-[{4-[ethyl(3-sulfonatobenzyl)amino]phenyl}(4-sulfonatophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene}ammonio)methyl]benzenesulfonate, A F Green No.2, Acid Brilliant Green SF, Acid Green 5, Acid Green A, Acidal Light Green SF, Acilan Green SFG, Acilan Light Green SFG, Amacid Green G, Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, hydroxide, inner salt, disodium salt, Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, inner salt, disodium salt, Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, inner salt, sodium salt (1:2), D and C Green No. 4, D&C Green No. 4, FD and C Green No. 2, FD&C Green No. 2, Fenazo Green 7G, Food Green 2, Green No. 203, Japan Green 205, Japan Green No. 205, Leather Green SF, Light Green Lake, Light Green SF Yellowish, Light Green SFA, Light Green SFD, Light Green Yellowish, Light SF Yellowish, Lissamine Green SF, Lissamine Lake Green SF, Merantine Green SF, My/68, NSC 9619, Pencil Green SF, Sulfo Green J, Sumitomo Light Green SF Yellowish, Yellowish Light Green SF, Yellowish SF Pale Green, disodium 3-[(ethyl{(1E,4E)-4-[{4-[ethyl(3-sulfonatobenzyl)amino]phenyl}(4-sulfonatophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene}ammonio)methyl]benzenesulfonate
• Brand: TCI

Chemical properties

• Molecular weight: 792.84
• Formula: C₃₇H₃₄N₂Na₂O₉S₃
• Color/Form: Red to Dark red to Dark purple powder to crystal