CAS
12227-56-4 Purity
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12227-56-4 Purity
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![Aluminum, 3-hydroxy-4-[(4-sulfo-1-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid complex](https://resource.alfa-chemistry.com/structure/12227-62-2.gif)
![Aluminium, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonic acid complex](https://resource.alfa-chemistry.com/structure/12227-64-4.gif)
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FOOD YELLOW NO. 4 ALUMINUM LAKE
CAS
12227-69-9
Catalog Number
ACM12227699
Category
Other Products
Molecular Weight
495.399419 [g/mol]
Molecular Formula
C16H12AlN4O9S2
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Specification
Synonyms
Certolake Tartrazine; C.I. Pigment Yellow 100; Food Yellow No. 4 AluMinuM Lake; Lakolene B 3014; Pigment Yellow 100; Aluminum indigo carmine; Yellow 5 Lake; Tartrazine aluminum lake; C Yellow 5 Lake;
IUPAC Name
aluminum;5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)diazenyl]-4H-pyrazole-3-carboxylic acid
Canonical SMILES
C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C(=O)O)S(=O)(=O)O.[Al]
InChI Key
PBHOALFJUHNTNW-UHFFFAOYSA-N
EC Number
235-428-9
Exact Mass
498.01000
H-Bond Acceptor
12
H-Bond Donor
3
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