Isotopically Labeled Compounds
Cambridge Isotope Laboratories BROMOBENZENE (D5, 99.5%), 5 G, 4165-57-5
BROMOBENZENE (D5, 99.5%), 5 G, 4165-57-5
Medchemexpress LLC Sulfamethoxazole-d4 | 1020719-86-1 | MFCD03425632 | 98.2% | 257.30 g/mol | C10H7D4N3O3S | 10 MG
Sulfamethoxazole-d4 is a deuterium-labeled analogue of the sulfonamide antibiotic sulfamethoxazole, supplied as a high-purity powder for analytical and tracer applications. Intended as an isotope-labeled internal standard for quantitative LC-MS and related studies; molecular formula C10H7D4N3O3S, molecular weight 257.30 g/mol, CAS 1020719-86-1.
- Deuterium-labeled internal standard for quantitative LC-MS analysis.
- High purity suitable for LC-MS and other analytical methods.
- Powder form for easy dissolution and aliquoting.
- Stable under recommended storage conditions for long-term use.
- Applicable to studies of bacterial folate metabolism and related assays.
Cambridge Isotope Laboratories Chloroform-D (D, 99.8%) +0.03% V/V Tms + Silver Foil, 50 G, 865-49-6
Chloroform-D (D, 99.8%) +0.03% V/V Tms + Silver Foil, 50 G, 865-49-6
Cambridge Isotope Laboratories Acetone-D6 (D, 99.9%), 10 X 0.5Ml, 666-52-4
Acetone-D6 (D, 99.9%), 10 X 0.5Ml, 666-52-4
Medchemexpress LLC Methoxychlor-d6 | 106031-79-2 | MFCD12022229 | 98.2% | 351.69 g/mol | C16H9D6Cl3O2 | 10 MG
Methoxychlor-d6 is the deuterium-labeled isotopologue of Methoxychlor supplied as a solid research reagent for use as a stable isotope tracer or internal standard in analytical chemistry and mass spectrometry. It offers high chemical purity and isotopic labeling for accurate quantitation and metabolic studies.
- Deuterium-labeled analog suitable as an internal standard.
- High purity for accurate quantitation.
- Soluble in ethanol (100 mg/mL); ultrasonic assistance may be needed.
- Solid, white to off-white, convenient for small-scale handling.
- Supplied in a 10 mg pack for analytical and research use.
Medchemexpress LLC Piperacillin-d5 | 61477-96-1 | 96.0% | 522.59 | C23H22D5N5O7S | 10 MG
Piperacillin-d5 is a deuterium-labeled (d5) analogue of the β-lactam antibiotic piperacillin supplied as a solid powder for use as an internal standard and tracer in quantitative analyses by NMR, GC-MS, and LC-MS. The d5 labeling enables mass-based discrimination with minimal alteration of chemical properties, making it suitable for pharmacokinetic and bioanalytical studies.
- Deuterium-labeled (d5) internal standard for quantitative analysis.
- Solid powder form for analytical sample preparation.
- Purity approximately 96.0%.
- Molecular weight 522.59 g/mol; formula C23H22D5N5O7S.
- Offered in small pack sizes for analytical workflows (for example, 10 mg).
Medchemexpress LLC Donepezil-d5 | 1128086-25-8 | 99.3% | C24H24D5NO3 | 1 MG
Donepezil-d5 is a deuterium-labeled version of Donepezil, a potent and specific AChE inhibitor. It has IC50 values of 8.12 nM for bovine AChE and 11.6 nM for human AChE. Deuteration, the incorporation of stable heavy isotopes into drug molecules, is used as a tracer during drug development and can influence the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC α-linolenic acid-13C18 | 287111-28-8 | 99.5% | 296.30 | 13C18H30O2 | 10 MG
α-Linolenic acid-13C18 is a 13C18-labeled form of the essential fatty acid alpha-linolenic acid, supplied as a stable-isotope reference standard for analytical, tracer, and metabolomics studies. It is provided at high isotopic enrichment and chemical purity for use in mass spectrometry and quantitative assays.
- Stable-isotope labeled (13C18) reference standard for tracing and quantitation.
- High chemical purity (99.5%) for reliable analytical results.
- Supplied as a colorless to light yellow liquid; density approx. 0.925 g/cm3.
- Recommended storage under nitrogen; in solvent: -80°C for 6 months, -20°C for 1 month.
- Small pack sizes (for example, 10 mg) suitable for analytical workflows.
Medchemexpress LLC 1,6-anhydro-β-D-glucopyranose-d7 | 2483832-05-7 | 99.9% | 169.18 g/mol | C6H3D7O5 | 25 MG
Levoglucosan-d7 is the deuterium-labeled isotopic form of levoglucosan (1,6-anhydro-β-D-glucopyranose), supplied as an analytical standard for research and mass spectrometry applications.
- Deuterium-labeled isotopic standard for levoglucosan.
- High purity (99.9%).
- Cas number 2483832-05-7.
- Provided as a solid suitable for analytical use.
- Common application: internal standard in mass spectrometry and tracer studies of biomass pyrolysis.
- Available in small quantities for analytical workflows (for example, 25 mg).
Medchemexpress LLC (±)-Linalool-d3 (vinyl-d3) | 1216673-02-7 | MFCD11109274 | 95.2% | 157.27 g/mol | C10H15D3O | 10 MG
Linalool-d3 is a deuterium-labeled analogue of the natural monoterpene linalool, supplied as a stable-isotope reference standard for analytical and research use. It is intended for use as an internal standard and for isotope-tracing experiments in GC-MS or LC-MS workflows, with documented purity, molecular weight, and solubility information available in the manufacturer datasheet and certificates.
- Deuterium-labeled internal standard for analytical assays.
- High purity suitable for quantitation and method validation.
- Soluble in common organic solvents, including DMSO.
- Provided in a small, laboratory-scale vial for trace-level work.
- Recommended storage conditions to preserve stability.
Sigma Aldrich Fine Chemicals Biosciences Chloroform-d 99.8 atom % D, contains 0.03 % (v/v) TMS | 865-49-6 | MFCD00000827 | 100G
Chloroform-d 99.8 atom % D, contains 0.03 % (v/v) TMS | Purity: >=99% (CP) | Mol Wt: 120.38 | 865-49-6 | MFCD00000827 | 100G
Medchemexpress LLC Methoxychlor-d6 | 106031-79-2 | 98.2% | 1 MG
Methoxychlor-d6 is a deuterium-labeled Methoxychlor, designed for research use. It serves as a tracer and internal standard for quantitative analysis by techniques such as NMR, GC-MS, or LC-MS.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Stable heavy isotopes incorporated into drug molecules for quantitation during drug development
- Potential to affect the pharmacokinetic and metabolic profiles of drugs through deuteration
Medchemexpress LLC Linuron-d6 | 1219804-76-8 | 99.8% | 1 MG
Linuron-d6 is the deuterium labeled Linuron (HY-B1866). Linuron is a phenylurea herbicide used to control grass and weeds in agriculture and orchards. It acts as a photosystem II inhibitor and a competitive androgen receptor (AR) antagonist with a Ki of 100 μM. Linuron exhibits reproductive toxicity in animals as an endocrine disruptor. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Acts as a photosystem II inhibitor
- Functions as a competitive androgen receptor (AR) antagonist
- Suitable for research use only
Medchemexpress LLC Terbuthylazine-d5 | 222986-60-9 | 99.1% | 1 MG
Terbuthylazine-d5 is a deuterium labeled version of Terbuthylazine, which acts as an inhibitor of acetolactate synthase (ALS) and is a selective herbicide. Deuteration has garnered attention due to its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.