CAS 992-59-6

Direct Red 2

Description:

Direct Red 2, with the CAS number 992-59-6, is a synthetic azo dye primarily used in textile applications, particularly for dyeing cotton and other cellulose fibers. It is characterized by its vibrant red color, which is attributed to the presence of azo groups (-N=N-) in its molecular structure. This compound is soluble in water, making it suitable for various dyeing processes. Direct Red 2 exhibits good lightfastness and washfastness, although its stability can vary depending on the specific conditions of use. The dye is also known for its potential environmental and health concerns, as some azo dyes can release carcinogenic amines upon degradation. Therefore, its use is regulated in many countries to minimize environmental impact and ensure safety. In addition to textiles, Direct Red 2 may find applications in other industries, such as food and cosmetics, although such uses are subject to strict regulatory oversight. Overall, Direct Red 2 is a significant compound in the dye industry, valued for its color properties and versatility.

Formula: C₃₄H₂₈N₆O₆S₂·2Na

InChI: InChI=1S/C34H28N6O6S2.2Na/c1-19-15-21(11-13-27(19)37-39-29-17-31(47(41,42)43)23-7-3-5-9-25(23)33(29)35)22-12-14-28(20(2)16-22)38-40-30-18-32(48(44,45)46)24-8-4-6-10-26(24)34(30)36;;/h3-18H,35-36H2,1-2H3,(H,41,42,43)(H,44,45,46);;

InChI key: InChIKey=YOPDKQWCDBTFII-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C=1C2=C(C(N)=C(N=NC3=C(C)C=C(C=C3)C4=CC(C)=C(N=NC5=C(N)C6=C(C(S(=O)(=O)O)=C5)C=CC=C6)C=C4)C1)C=CC=C2.[Na]

Synonyms:

• 1-Naphthalenesulfonic acid, 3,3′-[(3,3′-dimethyl[1,1′-biphenyl]-4,4′-diyl)bis(2,1-diazenediyl)]bis[4-amino-, sodium salt (1:2)
• 1-Naphthalenesulfonic acid, 3,3′-[(3,3′-dimethyl[1,1′-biphenyl]-4,4′-diyl)bis(azo)]bis[4-amino-, disodium salt
• C.I. Direct Red 2, disodium salt
• C.I. Direct Red 2
• C.I. 23500

Benzopurpurine 4B

CAS: 992-59-6

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Color and Shape: Orange to Brown powder to crystal

Molecular weight: 724.72

Ref: 3B-B0781

Benzopurpurin 4B

CAS: 992-59-6

Benzopurpurine 4B is a biological stain and pH indicator for pH 2.3-4.4. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Color and Shape: Powder, Dark red to reddish-brown

Molecular weight: 724.72

Ref: 02-J64901

Direct red 2

CAS: 992-59-6

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Purity: 98%

Color and Shape: Solid

Molecular weight: 724.7164

Ref: IN-DA003O2Q

Benzopurpurine 4B

CAS: 992-59-6

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Molecular weight: 724.73

Ref: 7W-GT2608

Benzopurpurine 4B

CAS: 992-59-6

Benzopurpurine 4B

Purity: ≥95%

Ref: 54-OR1078574

Benzopurpurin 4B

CAS: 992-59-6

Benzopurpurin 4B is a cationic surfactant that is used as an optical sensor for copper ions. It can be used to detect and quantify the presence of copper ions in solution. Benzopurpurin 4B is not soluble in water, but it does dissolve in organic solvents such as cyclohexane or chloroform. Benzopurpurin 4B has been shown to bind to amines and polyvinyl chloride surfaces and exhibit a fluorescent response when exposed to radiation. The uptake of benzopurpurin 4B by cells has been observed using a confocal microscope, showing that it binds to the hydroxyl groups on proteins.

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Purity: Min. 95%

Color and Shape: Red Powder

Molecular weight: 724.72 g/mol

Ref: 3D-FB52683

Benzopurpurine 4B (Technical Grade)

Controlled Product

CAS: 992-59-6

Applications Benzopurpurine 4B is a biological stain and pH indicator.

Formula: C₃₄H₂₆N₆Na₂O₆S₂

Color and Shape: Neat

Molecular weight: 724.72

Ref: TR-B205810