Description

C.I. Direct Red 227 (CAS No. 12222-51-4) is a high-purity synthetic azo dye with the molecular formula C₆₀H₄₆N₁₆Na₆O₂₂S₆. This hexasodium salt is characterized by its complex structure featuring multiple sulfonate groups, morpholine rings, and azo linkages, ensuring excellent water solubility and strong affinity for cellulosic fibers. With an IUPAC name of hexasodium;4-hydroxy-5-[[4-[4-[(E)-2-[4-[[4-[(8-hydroxy-7-phenyldiazenyl-3,6-disulfonatonaphthalen-1-yl)amino]-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]ethenyl]-3-sulfonatoanilino]-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]-3-phenyldiazenylnaphthalene-2,7-disulfonate, it is widely used in textile dyeing and paper coloration due to its vibrant red hue and superior fastness properties. Ideal for research and industrial applications, this dye is supplied as a finely powdered solid with consistent batch-to-batch quality.

Properties

• CAS Number: 12222-51-4
• Complexity: 3360
• IUPAC Name: hexasodium;4-hydroxy-5-[[4-[4-[(E)-2-[4-[[4-[(8-hydroxy-7-phenylazo-3,6-disulfonato-1-naphthyl)amino]-6-morpholino-1,3,5-triazin-2-yl]amino]-2-sulfonato-phenyl]vinyl]-3-sulfonato-anilino]-6-morpholino-1,3,5-triazin-2-yl]amino]-3-phenylazo-naphthalene-2,7-disulfonate
• InChI: InChI=1S/C60H52N16O22S6.6Na/c77-53-49-35(27-47(103(91,92)93)51(53)73-71-37-7-3-1-4-8-37)25-41(99(79,80)81)31-43(49)63-57-65-55(67-59(69-57)75-17-21-97-22-18-75)61-39-15-13-33(45(29-39)101(85,86)87)11-12-34-14-16-40(30-46(34)102(88,89)90)62-56-66-58(70-60(68-56)76-19-23-98-24-20-76)64-44-32-42(100(82,83)84)26-36-28-48(104(94,95)96)52(54(78)50(36)44)74-72-38-9-5-2-6-10-38;;;;;;/h1-16,25-32,77-78H,17-24H2,(H,79,80,81)(H,82,83,84)(H,85,86,87)(H,88,89,90)(H,91,92,93)(H,94,95,96)(H2,61,63,65,67,69)(H2,62,64,66,68,70);;;;;;/q;6*+1/p-6/b12-11+,73-71?,74-72?;;;;;;
• InChI Key: WBPUCWSCPXNMOA-MELJACINSA-H
• Exact Mass: 1672.0682999
• Molecular Formula: C60H46N16Na6O22S6
• Molecular Weight: 1673.4
• SMILES: C1COCCN1C2=NC(=NC(=N2)NC3=C4C(=CC(=C3)S(=O)(=O)[O-])C=C(C(=C4O)N=NC5=CC=CC=C5)S(=O)(=O)[O-])NC6=CC(=C(C=C6)/C=C/C7=C(C=C(C=C7)NC8=NC(=NC(=N8)N9CCOCC9)NC1=C2C(=CC(=C1)S(=O)(=O)[O-])C=C(C(=C2O)N=NC1=CC=CC=C1)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+]
• Topological: 634
• Monoisotopic Mass: 1672.0682999
• Synonyms: C.I. Direct Red 227, 2,7-Naphthalenedisulfonic acid, 4,4′-(1,2-ethenediylbis((3-sulfo-4,1-phenylene)imino(6-(4-morpholinyl)-1,3,5-triazine-4,2-diyl)imino))bis(5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:6), 2,7-Naphthalenedisulfonic acid, 4,4′-(1,2-ethenediylbis((3-sulfo-4,1-phenylene)imino(6-(4-morpholinyl)-1,3,5-triazine-4,2-diyl)imino))bis(5-hydroxy-6-(phenylazo)-, hexasodium salt, 2,7-Naphthalenedisulfonic acid, 4,4′-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-(4-morpholinyl)-1,3,5-triazine-4,2-diyl]imino]]bis[5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:6), Hexasodium 4,4′-(vinylenebis((3-sulphonato-4,1-phenylene)imino(6-morpholino-1,3,5-triazine-4,2-diyl)imino))bis(5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate), DTXSID50889665, 2,7-Naphthalenedisulfonic acid, 4,4′-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-(4-morpholinyl)-1,3,5-triazine-4,2-diyl]imino]]bis[5-hydroxy-6-(phenylazo)-, hexasodium salt, Hexasodium 4,4′-[vinylenebis[(3-sulphonato-4,1-phenylene)imino[6-morpholino-1,3,5-triazine-4,2-diyl]imino]]bis[5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate], DTXCID001031139, 12222-51-4, 241-769-4, 602-236-5, 17791-81-0, hexasodium;4-hydroxy-5-[[4-[4-[(E)-2-[4-[[4-[(8-hydroxy-7-phenyldiazenyl-3,6-disulfonatonaphthalen-1-yl)amino]-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]ethenyl]-3-sulfonatoanilino]-6-morpholin-4-yl-1,3,5-triazin-2-yl]amino]-3-phenyldiazenylnaphthalene-2,7-disulfonate, 4,4′-vinylene-bis(3-sulphonato-4,1-phenylene)imino6-morpholino-1,3,5-triazine-4,2-diyliminobis5-hydroxy-6-(phenyla zo)naphthalene-2,7-disulphonate (sodium salt), Kayarus Light Rose FR, EINECS 241-769-4, EC 241-769-4, hexasodium 4,4/’-[vinylenebis[(3-sulphonato-4,1-phenylene)imino[6-morpholino-1,3,5-triazine-4,2-diyl

Application

C.I. Direct Red 227 is primarily employed as a direct dye for cotton, viscose, and other cellulosic textiles, offering excellent wash and light fastness. It is also utilized in paper staining and ink formulations where a stable, water-soluble red pigment is required. Researchers may explore its photophysical properties for advanced material science applications, including dye-sensitized solar cells or optical sensors.

Safety and Hazards

GHS Hazard Statements

• Not Classified
• Reported as not meeting GHS hazard criteria by 17 of 17 companies. For more detailed information, please visit ECHA C&L website.

Hazard Classes and Categories

• Not Classified

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