Pristinamycin IB
Pristinamycin IB (Ostreogrycin B2) is an ester peptide antibiotic with anti-Gram-positive bacteria effects.
For research use only. We do not sell to patients.
- CAS No.: 57206-54-9
- Formula: C44H52N8O10
- Molecular Weight:852.93
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
All Antibiotic Isoforms
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Biological Activity
Description
Chemical Information
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CAS No. 57206-54-9
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Molecular Weight 852.93
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Formula C44H52N8O10
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SMILES
O=C1N2[C@](CC(CC2)=O)([H])C(N[C@@H](C3=CC=CC=C3)C(O[C@@H]([C@@H](C(N[C@@H](C(N4[C@](CCC4)([H])C(N([C@H]1CC5=CC=C(C=C5)NC)C)=O)=O)CC)=O)NC(C6=C(C=CC=N6)O)=O)C)=O)=O
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Synonyms
Ostreogrycin B2 ; Vernamycin Bβ
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Structure Classification
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Initial Source
Streptomyces loidensis
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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.
Protocols
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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.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)