Isotopically Labeled Compounds
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.
Cambridge Isotope Laboratories D-Glucose (1-13C 99% 6-13C 97%) 1 g
D-Glucose (1-13C 99% 6-13C 97%) 1 g
Cayman Chemical DeoxycholIc ACDd4 MaxSpec
A quantitative analytical standard guaranteed to meet MaxSpec identity, purity, stability, and concentration specifications
Cayman Chemical NItenpyram-d3 500ug
An internal standard for the quantification of nitenpyram by GC- or LC-MS
Medchemexpress LLC Leucine-2,3,3,4,5,5,5,5',5',5'-d10 | 29909-01-1 | 98.0% | 1 ML
(±)-Leucine-d10 is the deuterium labeled (±)-Leucine. It is an isomer of Leucine, acting as a chemosterilant and dietary additive. This compound can inhibit the growth of *Escherichia coli* HfrH by 92.08%. It is suitable for use as a tracer and 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 the drug development process. Deuteration has gained attention due to its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Deuterium labeled compound
- Acts as a chemosterilant and dietary additive
- Inhibits *Escherichia coli* growth
- Suitable for use as a tracer
- Functions as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
- Potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC (2S,4R)-4-hydroxypyrrolidine-2-carboxylic-2,4,5,5-d4 acid | 2734920-51-3 | 99.9% | 135.15 | C5H5D4NO3 | 1 MG
Deuterium-labeled L-hydroxyproline used as a chiral building block and as an analytical internal standard for quantitative methods. Supplied as a white to off-white solid with high isotopic enrichment and high chemical purity, the compound is intended for research and analytical applications where labeled internal standards are required.
- Deuterium labeled at positions 2, 4, 5, and 5.
- High purity (99.9% HPLC) and high isotopic enrichment.
- Suitable as tracer and internal standard for NMR, GC-MS, and LC-MS quantitative analysis.
- White to off-white solid; stable when stored as powder at -20 °C or in solution at -80 °C.
- Available in small mg quantities (1 MG, 5 MG, 10 MG) for analytical use.
Cambridge Isotope Laboratories L-GLUTAMINE (13C5, 97-99%; D5, 97-99%; 15N2, 97-99%), 0.25 G
L-GLUTAMINE (13C5, 97-99%; D5, 97-99%; 15N2, 97-99%), 0.25 G
Cambridge Isotope Laboratories ETHYL BROMOACETATE (1,2-13C2, 99%), 0.5 G, 61898-49-5
ETHYL BROMOACETATE (1,2-13C2, 99%), 0.5 G, 61898-49-5
Cayman Chemical Thromboxn B2-d4 100ug
An internal standard for the quantification of TXB2 by GC- or LC-MS
Medchemexpress LLC Lofexidine-d4 hydrochloride | 1206845-57-9 | 1 MG
Lofexidine-d4 hydrochloride (Baq-168-d4) is the deuterium labeled Lofexidine hydrochloride. Lofexidine hydrochloride is a selective α2-receptor agonist, commonly used to alleviate the physical symptoms of heroin and other types of opioid withdrawal. It is for research use only and not sold to patients. This compound can be used as a tracer and as an internal standard for quantitative analysis by 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 of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process
- Deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs
Cayman Chemical L-Cysteine-15N-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1795787-05-1, 5 mg
An internal standard for the quantification of L-cysteine by GC- or LC-MS
Medchemexpress LLC Remdesivir-d5 (GS-5734-d5) | 00-00-0 | 99.9% | 607.61 g·mol⁻1 | C27H30D5N6O8P | 1 MG
Remdesivir-d5 (GS-5734-d5) is a deuterium-labeled analogue of the antiviral nucleoside remdesivir, provided as an isotopic internal standard for analytical and research applications. It is intended for quantitative studies by LC-MS, GC-MS, and NMR and is supplied as a white to off-white solid.
- Deuterium-labeled internal standard for quantitative analysis
- High chemical purity and isotopic enrichment
- Molecular formula C27H30D5N6O8P; molecular weight 607.61 g·mol⁻1
- Supplied as a white to off-white solid with reported purity 99.9%
- Storage: powder at -20°C for long-term, 4°C for short-term
- For research use only; not for human use
Cambridge Isotope Laboratories L-LEUCINE (5,5,5-D3, 99%), 5 G, 87828-86-2
L-LEUCINE (5,5,5-D3, 99%), 5 G, 87828-86-2
Cambridge Isotope Laboratories L-Phenylalanine (Ring-D5) | 56253-90-8 | MFCD00144664 | 1 g
L-Phenylalanine (Ring-D5) | Purity: 98% | Mol Wt: 170.22 | 56253-90-8 | MFCD00144664 | 1 g
Medchemexpress LLC Vitamin B5-d4 calcium | 20938-62-9 | 99.17% | C18H24D8CaN2O10 | 1 MG
Vitamin B5-d4 calcium is a deuterium labeled Vitamin B5 calcium, used for research purposes. It can serve as a tracer or an internal standard for quantitative analysis using techniques like NMR, GC-MS, or LC-MS. Stable heavy isotopes, such as hydrogen and carbon, are incorporated into drug molecules primarily for quantitation during drug development, and deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Deuterium labeled vitamin B5 calcium
- Functions as a tracer in research applications
- Acts as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes for quantitation during drug development
- Deuteration can impact pharmacokinetic and metabolic profiles of drugs