Isotopically Labeled Compounds
Medchemexpress LLC Equilin 3-sulfate-d4 (sodium) | 285979-81-9 | 95.0% | 375.4 g/mol | C18H16D4NaO5S | 5 MG
Equilin 3-Sulfate-d4 (sodium) is the deuterium-labeled sodium salt of equilin 3-sulfate supplied for analytical and research use. It is intended as a stable-isotope internal standard or tracer for quantitative mass spectrometry and NMR applications. The material is typically provided as a solid and should be stored sealed at -20 °C; in solvent it is stable at -80 °C for up to 6 months or -20 °C for 1 month.
Cambridge Isotope Laboratories DIETHYL MALONATE (2-13C, 99%), 0.5 G, 67035-94-3
DIETHYL MALONATE (2-13C, 99%), 0.5 G, 67035-94-3
Cambridge Isotope Laboratories Mono-(2-ethyl-5-hydroxyhexyl)phthalate (DEHP metabolite IX) (unlabeled) 100 ug/mL in MTBE 1 2 mL
Mono-(2-ethyl-5-hydroxyhexyl)phthalate (DEHP metabolite IX) (unlabeled) 100 ug/mL in MTBE 1 2 mL
Cayman Chemical PalmItIc AcId-d31 500mg
An internal standard for the quantification of palmitic acid by GC- or LC-MS
Medchemexpress LLC Ethanolamine-13C2 hydrochloride | 1173019-25-4 | 98.0% | 99.53 | 13C2H8ClNO | 10 MG
Ethanolamine-13C2 hydrochloride is the 13C-labeled form of ethanolamine hydrochloride supplied as a hydrochloride salt. It is used as an isotope-labeled reagent and internal standard in biochemical, metabolomics, and mass spectrometry workflows.
- Isotopically labeled with two 13C atoms.
- Hydrochloride salt, supplied as a solid.
- High purity: 98.0%.
- Molecular weight: 99.53 g/mol.
- Suitable as an internal standard for mass spectrometry and metabolomics.
- Available in small pack sizes (1 mg, 5 mg, 10 mg).
Cambridge Isotope Laboratories DL-2-HYDROXYGLUTARIC ACID, DISODIUM SALT (13C5, 99%), 0.01 G
DL-2-HYDROXYGLUTARIC ACID, DISODIUM SALT (13C5, 99%), 0.01 G
Cayman Chemical a-MurIcholIc AcId-d4 1mg
An internal standard for the quantification of α-muricholic acid by GC- or LC-MS
Medchemexpress LLC Benzoic acid, 3,6-dichloro-2-(methoxy-d3) | 349553-95-3 | 99.7% | 10MG
Benzoic acid, 3,6-dichloro-2-(methoxy-d3) | 349553-95-3 | 99.7% | 10MG
Medchemexpress LLC L-histidine-d5 hydrochloride hydrate | 2483831-75-8 | 99.6% | 214.66 | C6H7D5ClN3O3 | 5 MG
L-histidine-d5 hydrochloride hydrate is a deuterium-labeled amino acid supplied as the hydrochloride hydrate salt for analytical and research use, including mass spectrometry, metabolic tracing, and isotope-labeling studies.
- Deuterium-labeled L-histidine for isotope tracing and internal standard use.
- Suitable for mass spectrometry and quantitative assays.
- High chemical purity (>99.6%).
- White to off-white solid, easy to handle in the laboratory.
- Store sealed, away from moisture and light for stability.
Cayman Chemical LInoleIc AcId-d4 5mg
An internal standard for the quantification of linoleic acid by GC- or LC-MS
Medchemexpress LLC 2,2'-bipyridine-d8 | 32190-42-4 | 99.3% | 164.23 g·mol⁻1 | C10D8N2 | 200 MG
2,2'-Bipyridine-d8 is the deuterium-labeled analogue of 2,2'-bipyridine supplied as a high-purity solid for use as a stable-isotope reagent and analytical standard. It is intended for mechanistic studies, tracer experiments, and as an internal standard in mass-spectrometry workflows where deuterium labeling improves tracking and quantification.
- High isotopic purity for accurate mass-spectrometry analysis.
- Suitable as an internal standard and tracer in analytical workflows.
- Solid form convenient for storage and handling.
- Commonly used in coordination chemistry and ligand studies.
- Supplied in a 200 mg pack size suitable for small-scale experiments.
Cambridge Isotope Laboratories L-ALANINE (2-13C, 99%), 0.25 G, 62656-85-3
L-ALANINE (2-13C, 99%), 0.25 G, 62656-85-3
Cayman Chemical L-ThreonIn-d2 10mg
An internal standard for the quantification of L-threonine by GC- or LC-MS
![Revvity Health Sciences Inc Glucose, D-[14C(U)]-, Specific Activity: 250-360mCi (9.25-13.3GBq)/mmol, 50µCi (1.85MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502809555.jpg-250.jpg)
Revvity Health Sciences Inc Glucose, D-[14C(U)]-, Specific Activity: 250-360mCi (9.25-13.3GBq)/mmol, 50µCi (1.85MBq)
Glucose, D-[14C(U)]-, Specific Activity: 250-360mCi (9.25-13.3GBq)/mmol, 50µCi (1.85MBq)
American Radiolabeled Chemicals Inc IBUPROFEN RS-3H(G) 250UC
Ibuprofen, RS-3H(G) 250uCi in ethanol, 1 mCi/ml, S.A. 1-5 Ci/mmol, M.W. 206.27, Exclusive