CAS 2602-46-2

DIRECT BLUE 6

Description:

Direct Blue 6, with the CAS number 2602-46-2, is a synthetic dye belonging to the class of azo dyes, which are characterized by the presence of one or more azo groups (-N=N-). This dye is primarily used in the textile industry for dyeing cotton and other cellulose fibers, providing a deep blue color. It is water-soluble, which enhances its application in various aqueous dyeing processes. Direct Blue 6 exhibits good lightfastness and washfastness properties, making it suitable for use in products that require durability. However, like many azo dyes, it may pose environmental and health concerns due to the potential release of aromatic amines upon degradation. Safety data sheets typically recommend handling it with care, as it may cause skin irritation or allergic reactions in sensitive individuals. Regulatory frameworks in various regions may impose restrictions on its use due to these concerns, emphasizing the importance of proper handling and disposal practices in industrial applications.

Formula: C₃₂H₂₀N₆Na₄O₁₄S₄

InChI: InChI=1/C32H24N6O14S4.4Na/c33-23-13-21(53(41,42)43)9-17-11-25(55(47,48)49)29(31(39)27(17)23)37-35-19-5-1-15(2-6-19)16-3-7-20(8-4-16)36-38-30-26(56(50,51)52)12-18-10-22(54(44,45)46)14-24(34)28(18)32(30)40;;;;/h1-14,35-36H,33-34H2,(H,41,42,43)(H,44,45,46)(H,47,48,49)(H,50,51,52);;;;/q;4*+1/p-4/b37-29+,38-30+;;;;

InChI key: InChIKey=UKVHXSMZSGUHFZ-UHFFFAOYSA-N

SMILES: OC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC=C(C=C3)C4=CC=C(N=NC=5C(S(=O)(=O)O)=CC6=C(C5O)C(N)=CC(S(=O)(=O)O)=C6)C=C4)C=C(S(=O)(=O)O)C=C2N.[Na]

Synonyms:

• (3Z)-5-amino-3-({4'-[(2E)-2-(8-amino-1-oxo-3,6-disulfonaphthalen-2(1H)-ylidene)hydrazino]biphenyl-4-yl}hydrazono)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
• 1-Naphthol-3,6-disulfonic acid, 2,2′-(4,4′-biphenylylenebisazo)bis[8-amino-, tetrasodium salt
• 2,7-Naphthalenedisulfonic acid, 3,3′-[[1,1′-biphenyl]-4,4′-diylbis(2,1-diazenediyl)]bis[5-amino-4-hydroxy-, sodium salt (1:4)
• 2,7-Naphthalenedisulfonic acid, 3,3′-[[1,1′-biphenyl]-4,4′-diylbis(azo)]bis[5-amino-4-hydroxy-, tetrasodium salt
• Airedale Blue 2BD
• Aizen Direct Blue 2BH
• Amanil Blue 2BX
• Atlantic Blue 2B
• Atul Direct Blue 2B
• Azocard Blue 2B
• Azomine Blue 2B
• Belamine Blue 2B
• Bencidal Blue 2B
• Benzanil Blue 2B
• Benzo Blue 2B
• Benzo Blue BBA-CF
• Benzo Blue BBN-CF
• Benzo Blue GS
• Blue 2B
• Blue 2B salt
• Brasilamina Blue 2B
• Calcomine Blue 2B
• Chloramine Blue 2B
• Chlorazol Blue B
• Chlorazol Blue BP
• Chrome Leather Blue 2B
• Cresotine Blue 2B
• Diacotton Blue BB
• Diamine Blue
• Diamine Blue 2B
• Diamine Blue BB
• Diaphtamine Blue BB
• Diazine Blue 2B
• Diazol Blue 2B
• Diphenyl Blue 2B
• Diphenyl Blue KF
• Diphenyl Blue M 2B
• Direct Blue 2B
• Direct Blue 2BA
• Direct Blue A
• Direct Blue BB
• Direct Blue GS
• Direct Blue K
• Direct Blue M 2B
• Direct Sky Blue K
• Enianil Blue 2BN
• Fenamin Blue 2B
• Fixanol Blue 2B
• Hispamin Blue 2B
• Indigo Blue 2B
• Kayaku Direct Blue BB
• Mitsui Direct Blue 2BN
• Naphtamine Blue 2B
• Niagara Blue 2B
• Nippon Blue BB
• Paramine Blue 2B
• Phenamine Blue BB
• Pheno Blue 2B
• Pontamine Blue BB
• Tertrodirect Blue 2B
• Vondacel Blue 2B
• tetrasodium (3Z)-5-amino-3-({4'-[(2E)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2(1H)-ylidene)hydrazino]biphenyl-4-yl}hydrazono)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate
• tetrasodium (3Z,3'Z)-3,3'-[biphenyl-4,4'-diyldi(1Z)hydrazin-2-yl-1-ylidene]bis(5-amino-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate)
• C.I. Direct Blue 6, tetrasodium salt
• C.I. Direct Blue 6
• C.I. 22610
• C.I. Direct Blue 6, tetrasodium salt
• C.I. Direct Blue 6
• enianilblue2bn
• atuldirectblue2b
• C.I.Directblue6
• directbluek
• azocardblue2b
• tetrasodium 5,5'-(1,1'-biphenyl-4,4'-diylbisazo)-bis-7-amino-6-hydroxy-naphthalene-1,4-disulphonate
• chromeleatherblue2b
• diaminebluebb
• diphenylbluekf
• diazineblue2b
• nipponbluebb
• diaphtaminebluebb
• chlorazolbluebp
• tetrasodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate]
• Pyra-zolBlue2BX
• phenaminebluebb
• abcoldirectblue2b(s)
• atlanticblue2b
• kayakudirectbluebb
• sodiuM 3,3'-(1E,1'E)-biphenyl-4,4'-diylbis(diazene-2,1-diyl)bis(5-aMino-4-hydroxynaphthalene-2,7-disulfonate)
• sodiumdiphenyl-4,4’-bis-azo-2"-8"-amino-1"-naphthol-3",6"-disulphonate
• diazolblue2b
• diamineblue2b
• 2,7-naphthalenedisulfonicacid,3,3’-[[1,1’-biphenyl]-4,4’-diylbis(azo)]bis[5-a
• hispaminblue2b
• benzanilblue2b
• Direct Blue 2B (C.I. Direct Blue 6)
• CI NO 22610
• diacottonbluebb
• tetrasodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] C.I. Direct Blue 6
• 3,3’-((4,4’-biphenylylene)bis(azo))bis(5-amino-7-naphthalenedisulfonicacid
• fenaminblue2b
• mitsuidirectblue2bn
• DIRECT BLUE 6
• indigoblue2b
• vondacelblue2b
• modrprima6
• DIRECT BLUE
• c.i.directblue6,tetrasodiumsalt
• tertrodirectblue2b
• C.I.Direct Blue 6:C.I.22610
• 2,7-naphthalenedisulfonicacid,3,3’-((1,1’-biphenyl)-4,4’-diylbis(azo))bis(5-a
• CI 22610
• kayakudirect
• naphtamineblue2b
• cidirectblue6
• cresotineblue2b
• paramineblue2b
• directbluegs
• CI 262610
• benzobluegs
• brasilaminablue2b
• NIPPON BLUE B
• Direct Blue 6@100 μg/mL in MeOH
• bencidalblue2b
• diphenylbluem2b
• ESSEX DIRECT BLUE 2 B CONC.
• benzobluebba-cf
• belamineblue2b
• directbluem2b
• Direct Blue 2B H/C
• airedaleblue2bd
• blue2bsalt
• directbluea
• iredale Blue 2BD
• BENZO BLUE 2B C.I.NO.22610
• phenoblue2b
• Direct blue 6 (C.I. 22610)
• aizendirectblue2bh
• nci-c54579
• directbluebb
• etrasodium5,5'-(1,1'-biphenyl-4,4'-diylbisazo)-bis-7-amino-6-hydroxy-naphthalene-1,4-disulphonate
• benzobluebbn-cf
• 2,7-naphthalenedisulfonicacid,3,3’-[[1,1’-biphenyl]-4,4’-diylbis(azo)]bis[5-amino-
• directblue6(technical
• directblue6(technicalgrade)
• chloramineblue2b
• Nippon Blue B
• amanilblue2bx
• azomineblue2b
• fixanolblue2b
• blue2b

Direct Blue 6

CAS: 2602-46-2

Formula: C₃₂H₂₀N₆Na₄O₁₄S₄

Purity: min. 75.0 area%(HPLC)

Color and Shape: Light gray to Brown to Black powder to crystal

Molecular weight: 932.74

Ref: 3B-D0235

Direct Blue 6 (Technical Grade)

CAS: 2602-46-2

Formula: C₃₂H₂₀N₆Na₄O₁₄S₄

Color and Shape: Solid

Molecular weight: 932.7521

Ref: IN-DA00IMFI

Direct Blue 6

Controlled Product

CAS: 2602-46-2

Applications Direct Blue 6 is a deep blue azo dye used in textiles however contributes to environmental pollution and potentially reproductive toxicity.Environmental toxin on US EPA Toxic Release Inventory list (TRI) list.
References Wu, S. et al.: Chem. Res. Toxicol., 26, 1840 (2013); Wang, P. et al.: J. Alloys. Comp., 701, 759 (2017);

Formula: C₃₂H₂₀N₆O₁₄S₄·4Na

Color and Shape: Dark Blue To Black

Molecular weight: 932.75

Ref: TR-D492950

C.I.Direct Blue 6

CAS: 2602-46-2

Direct Blue 6 is a reactive dye that is used in wastewater treatment. It is used for the removal of basic dyes and other contaminants from industrial wastewater. Direct Blue 6 is a reactive dye that has been shown to have carcinogenic potential. Direct Blue 6 has been shown to bind with aminotransferase activity and amines, which may lead to toxicity in mammals. The optimum concentration of Direct Blue 6 is 0.5 parts per million (ppm). This product can be hazardous if inhaled or ingested, and should not be handled without gloves or safety glasses.

Formula: C₃₂H₂₀N₆Na₄O₁₄S₄

Purity: Min. 75 Area-%

Color and Shape: Brown Powder

Molecular weight: 932.76 g/mol

Ref: 3D-FD41368