lamivudine 13c,15n2

Lamivudine 13C,15N2, an impurity of Lamivudine (BCH-189), functions as an inhibitor of both HIV-1/2 reverse transcriptase and hepatitis B virus reverse transcriptase, classifying it as a nucleoside reverse transcriptase inhibitor (NRTIs).

Semicarbazide-13C-15N2 Hydrochloride is the 13C and 15N labeled compound of Semicarbazide Hydrochloride. Semicarbazide Hydrochloride has a CAS number of 563-41-7. Semicarbazide is Snow white crystals and used as a reagent for ketones and aldehydes with which it affords crystalline compounds having characteristic melting points.

Cefdinir-13C-15N2 is the 13C and 15N labeled compound of Cefdinir. Cefdinir has a CAS number of 91832-40-5. Cefdinir is a semi-synthetic, broad-spectrum antibiotic in the third generation of the cephalosporin class, proven effective for common bacterial infections of the ear, sinus, throat and skin.

Zanamivir-13C,15N2is intended for use as an internal standard for the quantification of zanamivir by GC- or LC-MS. Zanamivir is a sialic acid analog that inhibits neuraminidase release of newly replicated influenza virus particles.1It has been shown to selectively inhibit the growth of influenza A and B viruses in plaque reduction assays with IC50values ranging from 5 to 14 nM and to directly inhibit influenza A and B virus neuraminidases with IC50values ranging from 0.6 to 7.9 nMin vitro. Intranasal zanamivir administration at 0.4 mg/kg twice daily reduces mortality and viral titers in lung homogenates of mice infected with influenza. 1.Elliott, M.Zanamivir: From drug design to the clinicPhilos. Trans. R. Soc. Lond. B Biol Sci.356(1416)1885-1893(2001)

Uric acid-13C-15N2 is the 13C and 15N labeled compound of Uric acid. Uric acid has a CAS number of 69-93-2. Uric acid is an oxidation product of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.

Phthalic acid, bis-2-n-butoxyethyl ester-d4 is a deuterated compound of Phthalic acid, bis-2-n-butoxyethyl ester. Phthalic acid, bis-2-n-butoxyethyl ester has a CAS number of 117-83-9.

Riluzole-13C,15N2 is intended for use as an internal standard for the quantification of riluzole by GC- or LC-MS. Riluzole is a benzothiazole derivative with anti-excitotoxic effects that acts by blocking the presynaptic release of glutamate, indirectly antagonizing glutamate receptors, and inactivating neuronal voltage-gated Na+ channels (ED50 = 2.3 μM). Riluzole suppresses glutamate-induced seizures in rats at an ED50 value of 3.2 mg/kg and displays neuroprotective effects in hypoxic animals at an ED50 value of 4 mg/kg. Formulations containing riluzole have been explored as therapeutics for slowing disease progression of amyotrophic lateral sclerosis.

Regorafenib-13C-d3 N-Oxide the 13C and deuterated compound of Regorafenib N-Oxide. Regorafenib N-Oxide has a CAS number of 835621-11-9. Regorafénib N-oxyde M2 is an active metabolite of Regorafenib. Regorafenib is a multi-target inhibitor for VEGFR1 2 3, PDGFRβ, RET, Kit, and Raf-1 (IC50s: 13 4.2 46, 1.5, 22, 7, and 2.5 nM).

Gemcitabine EP Impurity C-13C-15N2 is the 13C and 15N labeled compound of Gemcitabine EP Impurity C.

Lamivudine-13C-d2 the 13C and deuterated compound of Lamivudine. Lamivudine has a CAS number of 134678-17-4. Lamivudine is a reverse transcriptase inhibitor and ZALCITABINE analog in which a sulfur atom replaces the 3' carbon of the pentose ring. It is used to treat HIV disease.

5-Fluorouracil-13C,15N2 is intended for use as an internal standard for the quantification of 5-flurouracil by GC- or LC-MS. 5-Fluorouracil is a pyrimidine analog that irreversibly inhibits thymidylate synthase, blocking the synthesis of thymidine which is required for DNA synthesis. Intracellular metabolites of 5-fluorouracil exert cytotoxic effects by either inhibiting thymidylate synthetase, or through incorporation into RNA and DNA, ultimately initiating apoptosis.

2-Nitrobenzaldehyde semicarbazone (13C, 15N2) is utilized in the LC-MS/MS method for semicarbazide analysis.

1, 14-tetradecanedioic-2, 2, 13, 13-d4 acid is a deuterated compound of 1, 14-tetradecanedioic acid. 1, 14-tetradecanedioic acid has a CAS number of 821-38-5. Tetradecanedioic acid is a C14 dicarboxylic acid.