Polymyxin B1-d7 TFA
Based on 1 Customer Validation
Polymyxin B1-d7 TFA is the deuterium labeled Polymyxin B1 TFA (HY-A0248A). Polymyxin B1 is a potent antimicrobial lipopeptide first derived from Bacilus polymyxa. Polymyxin B1 is the major component in Polymyxin B (HY-A0248). Polymyxin B1 can induce lysis of bacterial cells through interaction with their membranes. Polymyxin B1 has the potential for multidrug-resistant Gram-negative bacterial infections treatment.
For research use only. We do not sell to patients.
- Purity : 98.18%
- Formula: C56H91D7N16O13.5C2HF3O2
- Molecular Weight:1780.64
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Storage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
- Protocols
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Description
In Vitro
Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
Application
1. This compound can be used as a tracer
2. This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Chemical Information
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Unlabeled CAS 4135-11-9
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Appearance Solid
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Molecular Weight 1780.64
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Formula C56H91D7N16O13.5C2HF3O2
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Color White to off-white
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Sequence
{Dab(6-methyl-1-oxooctyl)}-Thr-{Dab}-{Dab}-{Dab}-{d-Phe}-Leu-{Dab}-{Dab}-Thr (Lactam bridge: Dab4-Thr10)
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Sequence Shortening
{Dab(6-methyl-1-oxooctyl)}-T-{Dab}-{Dab}-{Dab}-{d-Phe}-L-{Dab}-{Dab}-T (Lactam bridge: Dab4-Thr10)
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Structure Classification
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Initial Source
Bacilus polymyxa
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Protocols
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Research Protocol for Infectious Diseases
Infectious-disease experiments test how pathogens interact with host barriers, innate immune receptors, inflammatory signaling, pathogen replication, and tissue injury; pattern-recognition receptors such as TLRs, RIG-I-like receptors, NOD-like receptors, and inflammasomes detect microbial molecules and activate NF-κB, interferon, and cytokine responses. The central hypothesis is that infection severity reflects the balance between pathogen burden and host response: protective inflammation restricts pathogen growth, whereas excessive or mislocalized inflammation contributes to tissue damage and disease phenotype. Unresolved questions include which host pathways are protective versus pathogenic, why some infection models fail to translate to human disease, and which combined readouts best predict clinically relevant infection outcomes.
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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
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Data Sheet (260 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. Kwa AL, et al. Pharmacokinetics of polymyxin B1 in patients with multidrug-resistant Gram-negative bacterial infections. Diagn Microbiol Infect Dis. 2008 Feb;60(2):163-7. [Content Brief]
[2]. Berglund NA, et al. Interaction of the antimicrobial peptide polymyxin B1 with both membranes of E. coli: a molecular dynamics study. PLoS Comput Biol. 2015 Apr 17;11(4):e1004180. [Content Brief]
[3]. Tam VH, et al. In vitro potency of various polymyxin B components. Antimicrob Agents Chemother. 2011 Sep;55(9):4490-1. [Content Brief]
[4]. Alonso MA, et al. Compounds affecting membranes that inhibit protein synthesis in yeast. Antimicrob Agents Chemother. 1979 Dec;16(6):750-6. [Content Brief]
[5]. Sivanesan S, et al. Pharmacokinetics of the Individual Major Components of Polymyxin B and Colistin in Rats. J Nat Prod. 2017 Jan 27;80(1):225-229. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Polymyxin B1-d7 TFA Related Classifications
HY-A0248AS Related Classifications
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