Acid Black 2

• CAS: 8005-03-6
• Catalog Number: ACM8005036
• Category: Acid Dyes
• Molecular Weight: 616.491
• Molecular Formula: C22H14N6Na2O9S2
• Description: Acid Black 2 is a synthetic dye belonging to the triphenylmethane family. Acid Black 2 is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
• Synonyms: Black 10B; Vondamol Light Black 10B; Dinatrium-4-amino-5-hydroxy-3-[(E)-(4-nitrophenyl)diazenyl]-6-[(E)-phenyldiazenyl]-2,7-naphthalendisulfonat; Fast Sulon Black BN; Metamine Blue Black; Amido Black 10 B; Naphtocard Black 12B; ; Aniline blue black; CI NO 0470; Sodium 4-amino-5-hydroxy-3-(4-nitrophenylazo)-6-(phenylazo)naphthalene-2,7-disulphonate; Comacid Blue Black B; Calcocid Blue Black 2R
• IUPAC Name: disodium;4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate
• Canonical SMILES: C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)[N+](=O)[O-])N)O.[Na+].[Na+]
• InChI: InChI=1S/C22H16N6O9S2.2Na/c23-19-18-12(11-17(39(35,36)37)21(22(18)29)27-24-13-4-2-1-3-5-13)10-16(38(32,33)34)20(19)26-25-14-6-8-15(9-7-14)28(30)31;;/h1-11,29H,23H2,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2
• InChI Key: AOMZHDJXSYHPKS-UHFFFAOYSA-L
• Melting Point: greater than 662 °F
• Solubility: In ethanol, 3 mg/mL; in 2-methoxyethanol, 50 mg/mL; in water, <0.1 mg/mL
• Appearance: dark brown granular solid
• Application: Acid Black 2 is widely used in a variety of scientific research applications. It is used in the study of cell structure and function, as well as in the study of enzymes and proteins. It is also used in the study of gene expression and in the study of metabolic pathways. Nigrosine can also be used in the study of plant and animal physiology, as well as in the study of biochemistry.
• Storage: Room temperature
• Exact Mass: 616.00592
• Features And Benefits: Acid Black 2 has the ability to absorb light.
• Hazard Codes: Xi
• Hazard Statements: H317-H350
• MDL Number: MFCD02684699
• PSA: 272.67
• Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
• WGK Germany: 3
• XLogP3: 7.9408

Case Study

ZnO-Mediated Photocatalytic Decolorization of Acid Black 2 Dye

Jaafar M T. Journal of Geoscience and Environment Protection, 2017, 5(9), 138-147.

Acid black 2, also known as Nigrosine, is an aniline derivative. Photocatalytic decolorization of acid black 2 can be achieved using ZnO nanoparticle suspension as a photocatalyst under 250 watts of UV-A illumination. At 25 minutes and 288.15K, the optimal removal efficiency (99.014%) of acid black 2 dye can be achieved under ZnO catalysis.
Possible mechanism of acid black 2 decolorization
· When using ZnO as a photocatalyst, hydroxyl radicals act as the driving force to initiate photoreactions in the presence of photocatalysts. The progress of the photoreaction for acid black 2 decolorization is summarized as shown in the figure.
· The photodecolorization reaction of acid black 2 dye in ZnO suspension follows pseudo-first-order kinetics.

Custom Q&A

What is the molecular formula of Acid Black 2?

The molecular formula of Acid Black 2 is C22H14N6Na2O9S2.

When was Acid Black 2 created and last modified according to PubChem?

Acid Black 2 was created on January 15, 2019, and last modified on December 23, 2023.

What are some synonyms for Acid Black 2?

Some synonyms for Acid Black 2 include Naphthol Blue Black, ACID BLACK 1, Amido Black 10B, and Acid black 2.

What is the molecular weight of Acid Black 2?

The molecular weight of Acid Black 2 is 616.5 g/mol.

What is the IUPAC Name of Acid Black 2?

The IUPAC Name of Acid Black 2 is disodium;4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate.

What is the Canonical SMILES representation of Acid Black 2?

The Canonical SMILES representation of Acid Black 2 is C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)[N+](=O)[O-])N)O.[Na+].[Na+].

What is the CAS number of Acid Black 2?

The CAS number of Acid Black 2 is 1064-48-8.

What is the role of Acid Black 2?

Acid Black 2 has a role as a histological dye.

What is the UNII of Acid Black 2?

The UNII of Acid Black 2 is SZT789770M.

What is the Wikipedia entry related to Acid Black 2?

The Wikipedia entry related to Acid Black 2 is Amido_black_10B.

What is the InChIKey of ACID BLACK 2?

The InChIKey of ACID BLACK 2 is AOMZHDJXSYHPKS-UHFFFAOYSA-L.

What is the canonical SMILES notation for ACID BLACK 2?

The canonical SMILES notation for ACID BLACK 2 is C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)[N+](=O)[O-])N)O.[Na+].[Na+].

What is the CAS number for ACID BLACK 2?

The CAS number for ACID BLACK 2 is 1064-48-8.

What is the UNII number for ACID BLACK 2?

The UNII number for ACID BLACK 2 is SZT789770M.

What is the molecular weight of ACID BLACK 2 computed by PubChem?

The molecular weight of ACID BLACK 2 was computed by PubChem 2.2.

What is the role of ACID BLACK 2 in histology?

ACID BLACK 2 has a role as a histological dye.