Isotope Standards
Sigma Aldrich Fine Chemicals Biosciences Isotopic standard for bromine NIST(R) SRM(R) 977 | 7647-15-6 | MFCD00003475 |
Isotopic standard for bromine NIST(R) SRM(R) 977 | Mol Wt: 102.89 | 7647-15-6 | MFCD00003475 |
Sigma Aldrich Fine Chemicals Biosciences Isotopic standard for chlorine NIST(R) SRM(R) 975a | 7647-14-5 | MFCD00003477 |
Isotopic standard for chlorine NIST(R) SRM(R) 975a | Mol Wt: 58.44 | 7647-14-5 | MFCD00003477 |
Medchemexpress LLC (Rac)-Tenofovir-d6 | 1020719-94-1 | 99.8% | 293.25 | 1 MG
(Rac)-Tenofovir-d6 is a labeled racemic Tenofovir. Tenofovir (GS 1278) is a nucleotide reverse transcriptase inhibitor used to treat HIV and chronic Hepatitis B (HBV).
- Used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements are incorporated into drug molecules as tracers for quantitation during drug development.
- Deuteration potentially affects the pharmacokinetic and metabolic profiles of drugs.
- For research use only; not sold to patients.
Medchemexpress LLC Sumatriptan-d6 succinate | 1215621-31-0 | 99.6% | 1 MG
Sumatriptan-d6 succinate is a deuterium-labeled version of Sumatriptan succinate. It functions as an orally active 5-HT1 receptor agonist, targeting 5-HT1D, 5-HT1B, and 5-HT1A receptors. This compound is valuable for research involving migraine headaches, where deuterium substitution can impact drug pharmacokinetic and metabolic profiles.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
eMolecules 1189480-47-4 | Medchem Express | Hydroxyzine D8 | 1mg | 533803403 | HY-B0548S1 | MFCD09840787 | 382.96 | C21H27ClN2O2
ChemScene | 2-Bromo-4-chloro-3-fluoroaniline | 100mg | 673264354 | CS-0146364 | 1253889-54-1 | MFCD30829189 | 224.460 | C6H4BrClFN
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eMolecules Building Block Tool
Medchemexpress LLC Imidacloprid (standard) | 138261-41-3 | 98.68% | 50 MG
Imidacloprid (Standard) is the analytical standard of Imidacloprid. This product is intended for research and analytical applications. Imidacloprid is an effective and widely used neonicotinoid pesticide to control pests of cereals, vegetables, tea and cotton. For research use only. We do not sell to patients.
- Reference standard supplied assay
- Used in qualitative, quantitative and methodological research experiments
- Suitable for HPLC, GC and MS applications
Medchemexpress LLC Dasatinib-d8 | 1132093-70-9 | MFCD15071210 | 99.2% | 496.05 g/mol | C22H18D8ClN7O2S | 1 MG
Dasatinib-d8 is a deuterium-labeled analogue of dasatinib supplied as a high-purity reference standard for analytical and research use, primarily as an internal standard for quantitative mass spectrometry. It is intended for method development, validation, and stability studies where isotopic labeling improves accuracy and precision (CAS 1132093-70-9).
- Deuterium-labeled internal standard for mass spectrometry applications.
- High purity for reliable quantification and reproducible results.
- Suitable for LC-MS and GC-MS method development and validation.
- Soluble in DMSO at high concentration for convenient stock preparation.
- Packaged for analytical reference and stability testing.
eMolecules Medchem Express | Isoformononetin-d3 | 1mg | 791206516 | HY-N7501S | 271.286 | C16H12O4
Medchem Express | Isoformononetin-d3 | 1mg | 791206516 | HY-N7501S | | 271.286 | C16H12O4
Cambridge Isotope Laboratories Simazine (ring-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Simazine (ring-13C3 99%) 100 ug/mL in acetonitrile 1 2 mL
Sigma Aldrich Fine Chemicals Biosciences Praziquantel Related Compound C United States Pharmacopeia (USP) Reference Standard | 125273-88-3 | 50MG
Praziquantel Related Compound C United States Pharmacopeia (USP) Reference Standard | Mol Wt: 342.39 | 125273-88-3 | 50MG
Medchemexpress LLC L-Phenylalanine-α,β,β,2,3,4,5,6-d8 | 17942-32-4 | 99.6% | 173.24 | 5 MG
L-Phenylalanine-d8 is the deuterium labeled L-Phenylalanine, an essential amino acid isolated from Escherichia coli. It acts as an α2δ subunit of voltage-dependent Ca+ channels antagonist with a Ki of 980 nM. L-phenylalanine is also a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) (KB of 573 μM) and non-NMDARs, respectively. It is widely used in the production of food flavors and pharmaceuticals.
- Can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Appearance: solid, white to off-white.
- Powder storage: -20°C for 3 years or 4°C for 2 years.
- Storage in solvent: -80°C for 6 months or -20°C for 1 month.
Sigma Aldrich Fine Chemicals Biosciences Cocaethylene-D8 solution 1
An analog of benzoylecgonine cocaethylene is a metabolite of cocaine formed in the presence of ethanol. This stable-labeled internal standard is suitable for quantitation of cocaethylene levels in urine blood and saliva by LC/MS or GC/MS for urine drug testing clinical toxicology forensic analysis or isotope dilution methods.
Medchemexpress LLC Glutaric acid-d6 | 154184-99-3 | MFCD00068286 | 98.0% | 138.15 | 10 MG
Glutaric acid-d6 is the deuterium labeled Glutaric acid. Glutaric acid is an intermediate during the catabolic pathways of lysine and tryptophan. It affects pericyte contractility and migration and is an indicator of glutaric aciduria type I.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.