Acid Black 234

• CAS: 157577-99-6
• Catalog Number: ACM157577996
• Category: Acid Dyes
• Molecular Weight: 860.8
• Molecular Formula: C34H26N10Na2O9S3
• Description: Acid Black 234 is a water-soluble azo dye that belongs to the family of synthetic dyes. It is widely used in the textile, leather, and paper industries for dyeing and printing purposes. AB234 is also used as a pH indicator, inks, and colorants in cosmetics, food, and pharmaceutical products.
• Synonyms: 4-Amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-2,7-naphthalenedisulfonic acid sodium salt;Acid Black 234;C.I. 30027;Black NB;2, 7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[
• IUPAC Name: disodium;4-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]sulfonylamino]phenyl]diazenyl]-5-hydroxy-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)NS(=O)(=O)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+]
• InChI: InChI=1S/C34H28N10O9S3.2Na/c35-20-6-15-27(26(36)18-20)41-38-23-11-13-25(14-12-23)54(46,47)44-24-9-7-22(8-10-24)40-42-32-28(55(48,49)50)16-19-17-29(56(51,52)53)33(34(45)30(19)31(32)37)43-39-21-4-2-1-3-5-21;;/h1-18,44-45H,35-37H2,(H,48,49,50)(H,51,52,53);;/q;2*+1/p-2
• InChI Key: GLNHIAPTFHWQKY-UHFFFAOYSA-L
• Appearance: Black Powder
• Application: Acid Black 234 has been extensively studied for its potential applications in various scientific fields. In the field of environmental science, Acid Black 234 is used as a tracer dye to study the transport and fate of pollutants in soil and water. Acid Black 234 is also used in the field of biotechnology as a substrate for the detection of enzyme activity. In the field of medicine, Acid Black 234 is used as a contrast agent for magnetic resonance imaging (MRI) and as a fluorescent probe for the detection of cancer cells.
• Storage: Store at 2-8 ℃
• Complexity: 1710
• Exact Mass: 860.084167
• Heavy Atom Count: 58
• Hydrogen Bond Acceptor Count: 19
• Hydrogen Bond Donor Count: 5
• Monoisotopic Mass: 860.08417453
• PSA: 358.16
• Rotatable Bond Count: 9
• Topological Polar Surface Area: 358Å2
• XLogP3: 12.2062

Case Study

Photocatalytic Degradation of Acid Black 234

Aisha Aziz, et al. Int J Biol Macromol. 2020,153, 502-512.

Acid black 234 is a genotoxic azo dye commonly used as a leather dye. Photocatalytic degradation is considered a promising strategy for dye degradation. For example, chitosan zinc sulfide nanoparticles (CS-ZnS-NPs) were developed as an effective photocatalyst for the degradation of toxic dyes.
Photocatalytic degradation experiment
· The photocatalytic degradation of Acid Black 234 was evaluated using CS-ZnS-NPs as photocatalyst under UV irradiation.
· For photocatalytic experiments, 30 mg CS-ZnS-NPs were added to 30 mL of 30 ppm solution of Acid Black 234 for 0-165 min at 25-35 °C and pH 3.0-7.0. The experimental setup comprised of glass apparatus along with constant stirring under UV radiation.
· After UV irradiation, dye solution was centrifuged to separate the photocatalyst and the absorbance of the solution was determined using a BMS UV-1602 double beam UV-Vis spectrophotometer at their corresponding wavelengths. The percentage of degradation of dyes was determined through Eq.

Application of Acid Black 234 in the Preparation of Molecularly Imprinted Polymers

Sadia M, et al. Molecules, 2023, 28(4), 1555.

Using acid black 234 (AB-234) dye as a template, molecularly imprinted polymer (MIP) adsorbents with extremely high selectivity for AB-234 dye can be prepared through bulk polymerization. This MIP sorbent can be used for the rapid determination of AB-234 dye in water samples and exhibits high selectivity for AB-234 dye (94%).
Preparation of Acid Black 234 Dye MIP
· Dissolve 0.215 g of Acid Black 234 dye in 10 mL of methanol and stir for 10 min.
· Then, 150 mmol of methacrylic acid (MAA) was added and left to stand for two hours, followed by 225 mmol of ethylene glycol dimethacrylate (EGDMA), and left to stand for 15 minutes.
· Finally, 2 mg of 2,2'-azobisisobutyronitrile (AIBN) initiator was added and kept in a 60 °C water bath for 24 h to obtain the MIP product.
· In the above preparation process, EGDMA, MAA, AB-234, AIBN and methanol were used as cross-linking agents, functional monomers, templates, initiators and porogenic solvents respectively.

Study on the Adsorption of Acid Black 234 Dye by Biocomposites

Noreen S, et al. International journal of biological macromolecules, 2020, 147, 439-452.

Acid black 234 (AB-234) is one of the dyes commonly used in the textile industry and is therefore also a representative dye in textile wastewater. Acid black 234 is a common model dye in the research of various dye adsorption materials, such as biocomposites. A series of biocomposites have been studied for the removal of AB-234 through biosorption, including polyaniline/sugarcane bagasse (Pan/SB), polypyrrole (PPy/SB), polyaniline/chitosan (PAn/Ch ), polyaniline/starch (PAn/St) and polypyrrole/starch (PPy/St).
· Batch adsorption procedure
For the comparison of biosorption capacity of native biosorbents and biocomposite s, AB-234 dye was used and effect of various process variables i.e., contact time, concentration of dye, pH, adsorbent dose and temperature was investigated.
· Column adsorption procedure
Continuous adsorption was performed in a glass column of 20 mm ID and 43 cm length that was with a known quantity of biosorbent and dye solution was passed through it. A steel sieve attached with glass wool layer was attached at the lower portion of column. After specific time intervals, the dye solutions were collected and absorbance was measured at 609 nm.

Custom Q&A

What is the molecular formula of Acid Black 234?

The molecular formula of Acid Black 234 is C34H26N10Na2O9S3.

When was Acid Black 234 created and last modified?

Acid Black 234 was created on 2019-01-21 and last modified on 2023-12-23.

What is the molecular weight of Acid Black 234?

The molecular weight of Acid Black 234 is 860.8 g/mol.

What are some synonyms for Acid Black 234?

Some synonyms for Acid Black 234 include disodium;4-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]sulfonylamino]phenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate.

What are the component compounds of Acid Black 234?

The component compounds of Acid Black 234 are Sodium and CID 136058972.

What is the IUPAC name of Acid Black 234?

The IUPAC name of Acid Black 234 is disodium;4-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]sulfonylamino]phenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate.

What is the InChI key for Acid Black 234?

The InChI key for Acid Black 234 is GLNHIAPTFHWQKY-UHFFFAOYSA-L.

What is the Canonical SMILES for Acid Black 234?

The Canonical SMILES for Acid Black 234 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)NS(=O)(=O)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+].

What is the CAS number for Acid Black 234?

The CAS number for Acid Black 234 is 157577-99-6.

What are some computed properties of Acid Black 234?

Some computed properties of Acid Black 234 include hydrogen bond donor count of 5, hydrogen bond acceptor count of 19, rotatable bond count of 9, exact mass of 860.08417453 g/mol, monoisotopic mass of 860.08417453 g/mol, topological polar surface area of 358 Ų, heavy atom count of 58, formal charge of 0, complexity of 1710, isotope atom count of 0, defined atom stereocenter count of 0, and undefined atom stereocenter count of 0.