Isotopically Labeled Compounds
Medchemexpress LLC Phenol, 5-chloro-2-(4,6-dichlorophenoxy-2,3,5-d3)- | 1020719-98-5 | 98.2% | 1 MG
Triclosan-d3 is the deuterium labeled Triclosan. Triclosan is an antibacterial and antifungal agent found in consumer products, including soaps, detergents, toys, and surgical cleaning treatments.
- This compound can be used as a tracer.
- This compound 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, primarily as tracers for quantitation during the drug development process.
- Deuteration has garnered attention due to its potential to influence the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC L-tyrosine-d3 | 71939-39-4 | 99.0% | 184.21 g/mol | C9H8D3NO3 | 10 MG
L-Tyrosine-d3 is the deuterium-labeled form of L-tyrosine supplied as a solid stable isotope standard for analytical and research use. It is used as a tracer and internal standard in quantitative methods such as NMR, GC-MS, and LC-MS, and may be used in metabolic studies involving citrate synthase activity in the posterior cortex.
- Deuterium-labeled tracer and internal standard for NMR, GC-MS, and LC-MS.
- High purity (≈99.0%) suitable for analytical applications.
- Solid, white to off-white appearance for easy handling.
- Storage: powder stable at -20°C (3 years) and 4°C (2 years); in solvent store at -80°C (6 months) or -20°C (1 month).
- Molecular weight 184.21 g/mol; formula C9H8D3NO3.
Cambridge Isotope Laboratories CYTOSINE (2-13C, 99%; 1,3-15N2, 98%), 0.05 G
CYTOSINE (2-13C, 99%; 1,3-15N2, 98%), 0.05 G
Medchemexpress LLC p-Toluic acid-d7 | 1219798-76-1 | MFCD06658857 | 99.7% | 10 MG
p-Toluic acid-d7 is the deuterium-labeled form of p-toluic acid (4-methylbenzoic acid), provided as a stable-isotope reference standard for analytical chemistry, metabolite tracing, and mass spectrometry applications. CAS 1219798-76-1; molecular weight 143.19 g/mol. Certificate of analysis reports high chemical purity and isotopic enrichment.
- High isotopic enrichment for accurate mass spectrometry.
- High chemical purity (~99.7% as reported by COA).
- Small 10 mg size suitable for method development and standards.
- Supplied with certificate of analysis and safety data sheet for traceability.
- Stable solid form, convenient for storage and handling.
Cambridge Isotope Laboratories Acrylonitrile (D3 98%) ( 0 1% 4-methoxyphenol) 5 g
Acrylonitrile (D3 98%) ( 0 1% 4-methoxyphenol) 5 g
Cambridge Isotope Laboratories RESVERATROL (4-HYDROXYPHENYL-13C6, 99%), 10 MG, 1185247-70-4
RESVERATROL (4-HYDROXYPHENYL-13C6, 99%), 10 MG, 1185247-70-4
Medchemexpress LLC Raloxifene-d4 hydrochloride | 1188263-47-9 | 98.6% | 514.07 | 500 UG
Raloxifene-d4 hydrochloride is the deuterium labeled form of Raloxifene, a benzothiophene-derived selective estrogen receptor modulator (SERM). It exhibits estrogen-agonistic effects on bone and lipids, and estrogen-antagonistic effects on the breast and uterus. This compound is utilized in breast cancer and osteoporosis research.
- Can be used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Exhibits estrogen-agonistic effects on bone and lipids
- Shows estrogen-antagonistic effects on the breast and uterus
- Valuable for breast cancer and osteoporosis research
Medchemexpress LLC L-ornithine-d2 hydrochloride | 2483831-42-9 | 99.9% | 170.63 | C5H11D2ClN2O2 | 5 MG
L-ornithine-d2 hydrochloride is the deuterium-labeled form of L-ornithine supplied for research use as an internal standard or tracer in quantitative analyses. It is provided as a high-purity, white to off-white solid hydrochloride salt tailored for analytical workflows such as NMR, GC-MS, and LC-MS.
- Deuterium-labeled internal standard for quantitative analysis.
- High chemical purity (≈99.9%).
- Hydrochloride salt form, solid, white to off-white.
- Suitable for NMR, GC-MS, and LC-MS methods.
- Available in small milligram pack sizes for analytical use.
Medchemexpress LLC 2-chloro-5-nitro-N-pyridin-4-ylbenzamide (d4) | 00-00-0 | MFCD00121849 | 281.69 | C12H4D4ClN3O3 | 5 MG
T0070907-d4 is the deuterium-labeled isotopologue of a selective PPARγ antagonist intended for research applications. It is used as an analytical or tracer standard and in mechanistic studies where isotope labeling improves detection, quantitation, or metabolic tracing.
- Deuterium-labeled isotopologue (d4) for tracer and analytical studies.
- Potent PPARγ antagonist suitable for receptor biology assays.
- Molecular formula C12H4D4ClN3O3; molecular weight 281.69.
- Available in small analytical quantities (e.g., 1 mg, 5 mg, 10 mg).
- Storage: powder -20°C; in solvent -80°C (6 months), -20°C (1 month).
- For research use only; not for human or clinical use.
Medchemexpress LLC (Rac)-Cotinine-d3 | 110952-70-0 | 99.9% | 179.23 | C10H9D3N2O | 10 MG
(Rac)-Cotinine-d3 is the deuterium-labeled racemic form of cotinine used as a stable isotope internal standard and tracer in analytical chemistry and bioanalysis. It is intended for use in quantitative mass spectrometry assays and metabolic studies where isotopically labeled standards improve accuracy and precision.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- Racemic form compatible with assays targeting cotinine and metabolites.
- High purity (99.9%) to minimize background interference.
- Available in small milligram quantities for analytical workflows.
- Molecular weight 179.23 and molecular formula C10H9D3N2O.
American Radiolabeled Chemicals Inc V1A ANTA 125I 50UC
Vasopressin (linear), V1A antagonist (Phenylacetyl1-0-Me-D-Tyr2) Arg6-125I 50uCi in buffered solution (pH 4.2), 0.05 mCi/ml, S.A. 2200 Ci/mmol, M.W. 1274
Medchemexpress LLC D-Glucose-13C-1 | 84270-10-0 | 99.9% | 1 MG
D-Glucose-13C-1 is the 13C labeled D-Glucose, a monosaccharide and important carbohydrate in biology. It serves as a critical signaling molecule in relation to both cellular metabolic status and biotic and abiotic stress response.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories BETA-ALANINE (13C3, 98%+; 15N, 96-99%), 0.25 G, 285978-07-6
BETA-ALANINE (13C3, 98%+; 15N, 96-99%), 0.25 G, 285978-07-6
Cayman Chemical Levomefolate-13C-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1356019-94-7, 1 mg
An internal standard for the quantification of levomefolate by GC- or LC-MS
Cambridge Isotope Laboratories DL-ASPARTIC ACID (4-13C, 99%), 0.5 G, 68315-35-3
DL-ASPARTIC ACID (4-13C, 99%), 0.5 G, 68315-35-3