Isotopically Labeled Compounds
Medchemexpress LLC Sitagliptin-d4 phosphate | 1432063-88-1 | MFCD25973056 | 99.5% | 509.33 | C16H14D4F6N5O5P | 5 MG
Sitagliptin-d4 phosphate is the deuterium-labeled isotopologue of sitagliptin phosphate used as an analytical reference standard. It is intended for LC-MS/MS quantitation, method development, and pharmacokinetic studies, providing consistent mass shift for accurate internal standardization and reliable assay performance.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- High chemical purity and confirmed isotopic enrichment.
- Suitable for method development, calibration, and pharmacokinetic studies.
- Provided as a phosphate salt for stability and solubility.
- Available in small-mass package sizes suitable for analytical use.
Medchemexpress LLC Octadecanoic-1-13C acid | 85541-42-0 | 99.87% | 250 MG
Stearic acid-1-13C is the 13C labeled Stearic acid, a long chain dietary saturated fatty acid found in many animal and vegetable fats and oils. This compound is used as a tracer and internal standard for quantitative analysis. Stable heavy isotopes have been incorporated into drug molecules for quantitation during drug development, with the potential to affect pharmacokinetic and metabolic profiles.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories L-Ornithine HCl (13C5 99% 15N2 99%) 5 mg
L-Ornithine HCl (13C5 99% 15N2 99%) 5 mg
Cayman Chemical Hydroxy Ipronidazole-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1156508-86-9, 2.5 mg
An internal standard for the quantification of hydroxy ipronidazole by GC- or LC-MS
Medchemexpress LLC (Rac)-Cotinine-d3 | 110952-70-0 | 99.9% | 50 MG
(Rac)-Cotinine-d3 is the deuterium labeled (Rac)-Cotinine. Deuteration has gained attention due to its potential to impact the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes incorporated into drug molecules.
- Potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC (R)-Lercanidipine-d3 hydrochloride | 1217724-52-1 | 99.9% | 1 MG
(R)-Lercanidipine D3 hydrochloride is a deuterium labeled (R)-Lercanidipine hydrochloride. This R-enantiomer of Lercanidipine functions as a calcium channel blocker. It appears as a solid with a light yellow to yellow color. This compound is for research use only.
- Deuterium labeled compound
- R-enantiomer of Lercanidipine
- Functions as a calcium channel blocker
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories POTASSIUM PALMITATE (2,2-D2, 97%), 1 G, 203805-86-1
POTASSIUM PALMITATE (2,2-D2, 97%), 1 G, 203805-86-1
Medchemexpress LLC Adipic acid-d4 | 121311-78-2 | 98.0% | 150.170 g/mol | C6H6D4O4 | 10 MG
Adipic acid-d4 is a deuterium-labeled stable isotope of adipic acid (CAS 121311-78-2) supplied as a white to off-white solid at 98.0% purity. It is intended for use as an internal standard, tracer, or analytical reference in mass spectrometry and isotopic studies, and is provided in small research pack sizes suitable for quantitative analysis. Store powder at -20°C (3 years) or 4°C (2 years); in solvent store at -80°C (6 months).
- Deuterium-labeled internal standard for mass spectrometry and isotope tracing.
- High purity (98.0%) for reliable analytical performance.
- White to off-white solid suitable for preparation of standard solutions.
- Available in small pack sizes for analytical and research use.
- Suitable for quantitative analysis, method development, and tracer studies.
- Recommended storage conditions provided to preserve stability.
Cambridge Isotope Laboratories HOMOVANILLIC ACID (1,2-13C2, 98-99%), 0.1 G
HOMOVANILLIC ACID (1,2-13C2, 98-99%), 0.1 G
Medchemexpress LLC Dodecanoic-12,12,12-d3 acid | 79050-22-9 | MFCD00190437 | 98.9% | 203.34 g/mol | C12H21D3O2 | 5mg
Lauric acid-d33 is the deuterium labeled Lauric acid Lauric acid is a middle chain-free fatty acid with strong bactericidal properties The EC50s for P acnes S aureus S epidermidis are 2 6 4 g/mL respectively
Medchemexpress LLC 1-methylnicotinamide-d3 chloride | 1218993-18-0 | 99.3% | 175.63 | C7H6D3ClN2O | 5 MG
TRIA-662-d3 is the deuterium-labeled form of 1-methylnicotinamide chloride, an endogenous metabolite reported to have antithrombotic and anti-inflammatory activities. It is provided as a stable isotope-labeled reference standard for use as a tracer or internal standard in quantitative NMR, GC-MS, and LC-MS analyses.
- High purity (99.31%).
- Molecular formula C7H6D3ClN2O; molecular weight 175.63 g/mol.
- Suitable as internal standard for quantitative NMR, GC-MS, and LC-MS.
- Intended use as a tracer in pharmacokinetic and metabolic studies.
- Storage: solid at 4°C; in solvent store at -80°C (6 months) or -20°C (1 month).
Cambridge Isotope Laboratories L-ALANINE-N-T-BOC (3,3,3-D3, 99%), 1 G, 161602-47-7
L-ALANINE-N-T-BOC (3,3,3-D3, 99%), 1 G, 161602-47-7
Cayman Chemical Cystathionine-d4, Purity: ≥99% deuterated forms (d1-d4), 1 mg
An internal standard for the quantification of cystathionine by GC- or LC-MS
Cambridge Isotope Laboratories Thymidine 5-monophosphate (15N2 98%) 10 mg
Thymidine 5-monophosphate (15N2 98%) 10 mg
Medchemexpress LLC Bicarbonate-13C sodium | 87081-58-1 | MFCD00084061 | 98.0% | 85.00 g/mol | NaH13CO3 | 250 MG
Bicarbonate-13C sodium is a 13C-labeled sodium bicarbonate supplied as a dry inorganic salt for use as a tracer and internal standard in analytical and metabolic studies. It is applicable to NMR, GC-MS, and LC-MS quantitation, and is useful for pH buffering in biological experiments.
- 13C-labeled tracer for metabolic and pH imaging studies.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS quantitation.
- High chemical purity (≥98.0%).
- Stable solid form for straightforward storage and handling.
- Useful for buffering and pH control in biological media.