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Raltegravir potassium Integrase inhibitor

Cat.No.S5245

Raltegravir Potassium(MK-0518 potassium) is the orally bioavailable potassium salt of raltegravir, the first approved human immunodeficiency virus type 1 (HIV-1) integrase inhibitor.
Raltegravir potassium Integrase inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 482.51

Quality Control

Batch: S524501 DMSO]96 mg/mL]false]Ethanol]10 mg/mL]false]Water]Insoluble]false Purity: 99.75%
99.75

Chemical Information, Storage & Stability

Molecular Weight 482.51 Formula

C20H20FN6O5.K

Storage (From the date of receipt)
CAS No. 871038-72-1 -- Storage of Stock Solutions

Synonyms MK-0518 potassium Smiles CC1=NN=C(O1)C(=O)NC(C)(C)C2=NC(=C(C(=O)N2C)[O-])C(=O)NCC3=CC=C(C=C3)F.[K+]

Solubility

In vitro
Batch:

DMSO : 96 mg/mL (198.95 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 10 mg/mL

Water : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
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In vivo Formulation Calculator (Clear solution)

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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Mechanism of Action

Targets/IC50/Ki
HIV integrase [2]
In vitro

PFV IN carrying the S217H substitution is 10-fold less susceptible to Raltegravir with IC50 of 900 nM. PFV IN displays 10% of WT activity and is inhibited by Raltegravir with an IC50 of 200 nM, indicating a ~twofold decrease in susceptibility to the IN strand transfer inhibitor (INSTI) compared with WT IN. S217Q PFV IN is as sensitive to Raltegravir as the WT enzyme. [1] Raltegravir is metabolized by glucuronidation, not hepatically. Raltegravir has potent in vitro activity against HIV-1, with a 95% inhibitory concentration of 31?0 nM, in human T lymphoid cell cultures. Raltegravir is also active against HIV-2 when Raltegravir is tested in CEMx174 cells, with an IC95 of 6 nM. Raltegravir metabolism occurs primarily through glucuronidation. Drugs that are strong inducers of the glucuronidation enzyme, UGT1A1, significantly reduce Raltegravir concentrations and should not be used. Raltegravir exhibits weak inhibitory effects on hepatic cytochrome P450 activity. Raltegravir does not induce CYP3A4 RNA expression or CYP3A4-dependent testosterone 6-β-hydroxylase activity. [2] Raltegravir cellular permeativity is reduced in the presence of magnesium and calcium. [3] Raltegravir and related HIV-1 integrase (IN) strand transfer inhibitors (INSTIs efficiently block viral replication. [4] In acutely infected human lymphoid CD4+ T-cell lines MT-4 and CEMx174, SIVmac251 replication is efficiently inhibited by Raltegravir, which shows an EC90 in the low nanomolar range. [5]

In vivo

Raltegravir induces viro-immunological improvement of nonhuman primates with progressing SIVmac251 infection. One non-human primate shows an undetectable viral load following Raltegravir monotherapy. [5]

References
  • [4] https://pubmed.ncbi.nlm.nih.gov/21719464/
  • [5] https://pubmed.ncbi.nlm.nih.gov/20233398/

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