Direct Black 38 free acid
Based on 2 publication(s) in Google Scholar
Direct Black 38 (Chlorazol Black E; Ferristatin II disodium) free acid is a benzidine-based azo dye, a substrate of Enterococcus gallinarum, and is mainly used for textile dyeing. Direct Black 38 free acid is biodegradable after being reduced by microbial enzymes (such as Enterococcus gallinarum azoreductase), breaking the azo bonds and releasing benzidine and 4-aminobiphenyl. Direct Black 38 free acid can be used in environmental toxicology, wastewater treatment and carcinogenicity studies, but its metabolite benzidine is listed as a human carcinogen.
For research use only. We do not sell to patients.
- CAS No.: 22244-14-0
- Formula: C34H27N9O7S2
- Molecular Weight:737.76
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) Direct Black 38 free acid
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Biological Activity
Chemical Information
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CAS No. 22244-14-0
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Molecular Weight 737.76
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Formula C34H27N9O7S2
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SMILES
O=S(C1=C(/N=N/C2=CC=C(C3=CC=C(/N=N/C4=CC=C(N)C=C4N)C=C3)C=C2)C(N)=C5C(O)=C(/N=N/C6=CC=CC=C6)C(S(=O)(O)=O)=CC5=C1)(O)=O
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Synonyms
Chlorazol Black E free acid; Ferristatin II; C.I. 30235 free acid
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (2)
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Journal Impact Factor
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Most Recent
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Cell Metab
Ferroplasticity drives social isolation-induced anxiety via a ventral hippocampal iron-α-synuclein axis. [Abstract]2026 Jan 27:S1550-4131(25)00586-8. PMID: 41605214 -
Int J Mol Sci
CD71-Mediated Effects of Soluble Vasorin on Tumor Progression, Angiogenesis and Immunosuppression. [Abstract]2025 May 20;26(10):4913. PMID: 40430053
Purity & Documentation
References
[1]. Beije B. Induction of unscheduled DNA synthesis in liver and micronucleus in bone marrow of rats exposed in vivo to the benzidine-derived azo dye, Direct Black 38. Mutat Res. 1987 Apr;187(4):227-34. [Content Brief]
[2]. Byrne SL, et al. Ferristatin II promotes degradation of transferrin receptor-1 in vitro and in vivo. PLoS One. 2013 Jul 23;8(7):e70199. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Direct Black 38 free acid Related Classifications
HY-D0256A Related Classifications
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