CAS 20262-76-4

C.I. Food Blue 5:2

Description:

C.I. Food Blue 5:2, also known by its CAS number 20262-76-4, is a synthetic dye primarily used in the food industry to impart a blue color to various products. It belongs to the class of azo dyes, characterized by the presence of one or more azo groups (-N=N-) in their structure. This compound is water-soluble, making it suitable for use in aqueous food products, beverages, and confections. Its stability under acidic and neutral conditions allows it to maintain color integrity in a variety of formulations. C.I. Food Blue 5:2 is often evaluated for safety and regulatory compliance, with guidelines established by food safety authorities to ensure it is safe for consumption. Additionally, it is important to note that the use of food colorants is subject to specific regulations that vary by country, and manufacturers must adhere to these standards to ensure consumer safety. Overall, C.I. Food Blue 5:2 is valued for its vibrant hue and versatility in food applications.

Formula: C₂₇H₃₂N₂O₇S₂·Na

InChI: InChI=1S/C27H32N2O7S2.Na/c1-5-28(6-2)21-13-9-19(10-14-21)27(20-11-15-22(16-12-20)29(7-3)8-4)23-17-24(30)26(38(34,35)36)18-25(23)37(31,32)33;/h9-18H,5-8H2,1-4H3,(H2-,30,31,32,33,34,35,36);

InChI key: InChIKey=VRJACOWSWUNNIL-UHFFFAOYSA-N

SMILES: C(C1=C(S(=O)(=O)[O-])C=C(S(=O)(=O)O)C(O)=C1)(C2=CC=C(N(CC)CC)C=C2)=C3C=CC(=[N+](CC)CC)C=C3.[Na]

Synonyms:

• Ci 42051
• Einecs 243-654-4
• Ethanaminium, N-(4-((4-(diethylamino)phenyl)(5-hydroxy-2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, monosodium salt
• Ethanaminium, N-[4-[[4-(diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, monosodium salt
• Ethanaminium, N-[4-[[4-(diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, sodium salt (1:1)
• Food Blue 5:2
• Hydrogen (4-(4-(diethylamino)-5'-hydroxy-2',4'-
• Hydrogen [4-[4-(diethylamino)-5'-hydroxy-2',4'-disulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene]diethylammonium, monosodium salt
• Patent Blue
• Patent Blue V
• Patent blue V sodium salt
• Sodium 4-{[4-(Diethylamino)Phenyl][4-(Diethyliminio)Cyclohexa-2,5-Dien-1-Ylidene]Methyl}-6-Hydroxybenzene-1,3-Disulfonate
• C.I. Acid Blue 3, monosodium salt

Acid Blue 3 Sodium Salt

CAS: 20262-76-4

Formula: C₂₇H₃₁N₂NaO₇S₂

Color and Shape: Red to Dark blue to Black powder to crystal

Molecular weight: 582.66

Ref: 3B-A1242

Patent blue V sodium salt

CAS: 20262-76-4

Patent blue V sodium salt

Formula: C₂₇H₃₂N₂NaO₇S₂

Purity: ≥95%

Molecular weight: 583.67

Ref: 54-OR1127197

Ethanaminium, N-[4-[[4-(diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, sodium salt (1:1)

CAS: 20262-76-4

Formula: C₂₇H₃₂N₂NaO₇S₂

Purity: 80%

Color and Shape: Solid

Molecular weight: 583.6720

Ref: IN-DA0028C2

Patent blue V sodium salt (C.I. 42051)

CAS: 20262-76-4

Formula: C₂₇H₃₁N₂NaO₇S₂

Color and Shape: Dark blue powder

Molecular weight: 582.66

Ref: 7W-GT9524

Patent Blue V 100 µg/mL in Acetonitrile:Methanol

Controlled Product

CAS: 20262-76-4

Formula: C₂₇H₃₁N₂O₇S₂·Na

Color and Shape: Single Solution

Molecular weight: 582.66

Ref: 04-A15895900MC-100

C.I. Food Blue 5:2

CAS: 20262-76-4

C.I. Food Blue 5:2, a multifunctional dye, serves various roles in both scientific and traditional industries. In research and clinical diagnostics, it facilitates the observation and analysis of cell structures, tracking of biomolecules, evaluation of cell functions, differentiation of cell types, detection of biomolecules, tissue pathology studies, and monitoring of microorganisms. Additionally, its uses extend to traditional textile dyeing and emerging applications in functional textile processing, food pigments, and dye-sensitized solar cells.

Formula: C₂₇H₃₁N₂NaO₇S₂

Color and Shape: Solid

Molecular weight: 582.66

Ref: TM-T85974

Patent Blue V

CAS: 20262-76-4

Formula: C₂₇H₃₁N₂O₇S₂·Na

Color and Shape: Neat

Molecular weight: 582.66

Ref: 04-C15895900

Patent Blue V Disodium Salt (Technical Grade)

Controlled Product

CAS: 20262-76-4, 25305-77-5

Applications Patent Blue V Disodium Salt is a pH dependent dye. It can also be used in technical or engineered material use for preparation of metal cation exchanged cellulose as new layer material for identification and separation of organic dyes.
References Rathore, M., et al.: Adv Appl Sci Res, 6, 97 (2015)

Formula: C₂₇H₃₁N₂Na₂O₇S₂

Color and Shape: Neat

Molecular weight: 605.654

Ref: TR-P206520

Acid Blue 3 Sodium Salt (>90%)

CAS: 20262-76-4

Applications Acid Blue 3 Sodium Salt is an synthetic food dye that is banned in Australia and the USA due to reoccurring allergic reactions. Dyes and metabolites, Environmental Testing.
References Siwinska-Stefanska, K., et al.: Dyes. Pigment. 94, 338 (2012); Sharma, V., et al.: J. Chem. Edu., 88, 24 (2011);

Formula: C₂₇H₃₁N₂O₇S₂·Na

Purity: >90%

Color and Shape: Neat

Molecular weight: 582.66

Ref: TR-A189810

Patent Blue V sodium salt

CAS: 20262-76-4

C.I. Acid Blue 3 is a synthetic, water-soluble dye that has been used in analytical chemistry for the detection of metal hydroxides and other metal ions. The dye can be activated by radiation or by heating to produce a bright blue color that is stable under acidic conditions. C.I. Acid Blue 3 has been shown to cause toxicity in animals, and may have potential carcinogenic effects in humans due to its ability to cross the blood-brain barrier and accumulate in the brain. The molecular weight of this compound is approximately 464 g/mol and it has a molecular formula of C 18 H 20 N 2 NaO 7 S 2 .

Formula: C₂₇H₃₂N₂O₇S₂•xNa

Color and Shape: Blue Powder

Molecular weight: 582.67 g/mol

Ref: 3D-FC157137