Direct Black 38 free acid
Catalog No. A44744

Direct Black 38 free acid is a benzidine-based azo dye that serves as a substrate for Enterococcus gallinarum. It exhibits biodegradability through microbial enzymatic reduction, resulting in the cleavage of azo bonds and the release of benzidine and 4-aminobiphenyl. This compound is primarily utilized in environmental toxicology, wastewater treatment, and carcinogenicity research, although caution is warranted due to the classification of its metabolite, benzidine, as a human carcinogen.
Chemical Information
| Catalog Num | A44744 |
|---|---|
| M. Wt | 737.76 |
| Formula | C34H27N9O7S2 |
| Purity | >98% |
| Storage | at -20 °C 3 years (powder form); at -20 °C 6 months (Solution base) |
| CAS No. | 22244-14-0 |
| Synonyms | Chlorazol Black E free acid; Ferristatin II; C.I. 30235 free acid |
| 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 |
Biological Activity
| Description | Direct Black 38 free acid is a benzidine-based azo dye that serves as a substrate for Enterococcus gallinarum. It exhibits biodegradability through microbial enzymatic reduction, resulting in the cleavage of azo bonds and the release of benzidine and 4-aminobiphenyl. This compound is primarily utilized in environmental toxicology, wastewater treatment, and carcinogenicity research, although caution is warranted due to the classification of its metabolite, benzidine, as a human carcinogen. |
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RETURN POLICY
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
Adooq’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
SHIPPING AND STORAGE
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.


