Determine the necessary mass, volume, or concentration for preparing a solution.
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≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Protected from light,Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Isodiospyrin, a natural dimeric naphthoquinone, is a human DNA topoisomerase I ( Topoisomerase ) inhibitor. Isodiospyrin can prevent both DNA relaxation and kinase activities of human topoisomerase I. Isodiospyrin shows anticancer, antibacterial and antifungal activities
In Vitro
Isodiospyrin (10-40 μM) does not induce human topoisomerase I (htopo I)-DNA covalent complexes. However, Isodiospyrin antagonizes Camptothecin-induced, htopo I-mediated DNA cleavage. Isodiospyrin binds htopo I but not DNA. Isodiospyrin exhibits strong inhibitory effect on the kinase activity of htopo I toward splicing factor 2/alternate splicing factor in the absence of DNA. Isodiospyrin against Gram-positive bacteria with MICs ranged from 0.78 to 50 μg/mL. While Isodiospyrin against Pseudomonas aeruginosa ATCC 15443 and S. typhi ranged from 50 to 100 μg/mL. The MIC for M. chelonae is between 6.25 and 25 μg/mL. Isodiospyrin (30 μM; 120-144 hours) shows 81.4 % growth inhibition of P. obscurans . The antifungal activity of Isodiospyrin at 30 μM against P. viticola is 57.7 %. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
IC50& Target:Topoisomerase I
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| Classe | Naphthalenes |
| Subclass | Naphthoquinones |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Naphthoquinones |
| Alternative Parents | Quinones Aryl ketones 1-hydroxy-4-unsubstituted benzenoids 1-hydroxy-2-unsubstituted benzenoids Vinylogous acids Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | Naphthoquinone - Aryl ketone - Quinone - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Vinylogous acid - Ketone - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homopolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as naphthoquinones. These are compounds containing a naphthohydroquinone moiety, which consists of a benzene ring linearly fused to a bezene-1,4-dione (quinone). |
| External Descriptors | biphenyls |
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| Poids moléculaire | 374.300 g/mol |
|---|---|
| XLogP3 | 3.700 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 1 |
| Exact Mass | 374.079 Da |
| Monoisotopic Mass | 374.079 Da |
| Topological Polar Surface Area | 109.000 Ų |
| Heavy Atom Count | 28 |
| Formal Charge | 0 |
| Complexity | 795.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |