Exfoliamycin
Exfoliamycin is a naphthoquinone antibiotic found by Streptomyces Exfoliamycin Tu 1424 and is active against Gram-positive bacteria.
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- CAS No.: 148084-37-1
- Formule: C22H26O9
- Masse moléculaire:434.44
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Stockage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Activité biologique
Description
Chemical Information
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CAS No. 148084-37-1
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Masse moléculaire 434.44
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Formule C22H26O9
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SMILES
OC1=C(C(C([C@@H]2O[C@@H]([C@H]([C@H]2O)O)CO)=CC3=O)=O)C3=CC4=C1[C@@H](CCC)O[C@](C)(O)C4
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Structure Classification
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Initial Source
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocole
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Gram Staining of Tissue Sections
Gram staining of tissue sections is a histochemical technique used to differentiate Gram-positive and Gram-negative bacteria within histological specimens based on differences in bacterial cell wall structure and dye retention, adapted from classical bacteriological Gram staining into tissue-compatible “histological Gram stain” variants. In tissue applications, modifications of the Brown-Hopps and Brown-Brenn methods are commonly used to improve differentiation of microorganisms embedded within host connective tissue and to reduce overstaining or loss of Gram-negative signal, which are known limitations of earlier approaches. The principle relies on crystal violet-iodine complex retention in Gram-positive organisms and subsequent decolorization and counterstaining steps that allow contrast visualization of Gram-negative organisms against tissue background.
Pureté et documentation
Références
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)