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SPR741

SPR741 (NAB741) is a cationic peptide derived from polymyxin B and is a potentiator molecule. SPR741 increases the permeability of the outer membrane of Gram-negative bacteria and is used to treat severe Gram-negative bacteria infections. SPR741 inhibits multidrug-resistant Gram-negative bacteria. The spectrum of activity of the antibiotic can be widened when used in combination with SPR741[1][2].

Product Specifications

CAS Number

[1179330-52-9]

Product Name Alternative

NAB741

UNSPSC

12352209

Target

Antibiotic; Bacterial

Type

Peptides

Related Pathways

Anti-infection

Applications

COVID-19-immunoregulation

Field of Research

Infection

Assay Protocol

https://www.medchemexpress.com/spr741.html

Purity

99.08

Solubility

DMSO : 100 mg/mL (ultrasonic)

Smiles

CC(N[C@@H]([C@H](O)C)C(N[C@H](CO)C(N[C@@H](CCNC([C@](N1)([H])[C@H](O)C)=O)C(N[C@@H](CCN)C(N[C@@H](C(N[C@H](C(N[C@H](C(N[C@@H](CCN)C1=O)=O)CCN)=O)CC(C)C)=O)CC2=CC=CC=C2)=O)=O)=O)=O)=O

Molecular Formula

C44H73N13O13

Molecular Weight

992.13

References & Citations

[1]Corbett D, et al. Potentiation of Antibiotic Activity by a Novel Cationic Peptide: Potency and Spectrum of Activity of SPR741. Antimicrob Agents Chemother. 2017 Jul 25;61 (8) . pii: e00200-17.|[2]Eckburg PB, et al. Safety, Tolerability, Pharmacokinetics, and Drug Interaction Potential of SPR741, an Intravenous Potentiator, after Single and Multiple Ascending Doses and When Combined with β-Lactam Antibiotics in Healthy Subjects. Antimicrob Agents Chemother. 2019 Aug 23;63 (9) . pii: e00892-19.

Shipping Conditions

Blue Ice

Storage Conditions

-80°C, 2 years; -20°C, 1 year (Powder, sealed storage, away from moisture)

Product Datasheet

http://file.medchemexpress.com/batch_PDF/HY-P1649/SPR741-DataSheet-MedChemExpress.pdf

Product MSDS

http://file.medchemexpress.com/batch_PDF/HY-P1649/SPR741-SDS-MedChemExpress.pdf

Scientific Category

Peptides

Clinical Information

Phase 1

Citation 01

Int J Antimicrob Agents. 2021 Nov;58 (5) :106434.|J Pharm Biomed Anal. 2024 Aug 6:250:116403.|Nature. 2022 Apr;604 (7906) :541-545.

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