Isotopically Labeled Compounds
![Revvity Health Sciences Inc L-[Methyl-<sup>3</sup>H]-Methionine,>97%, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810772.jpg-250.jpg)
Revvity Health Sciences Inc L-[Methyl-3H]-Methionine,>97%, 250µCi (9.25MBq)
L-[Methyl-3H]-Methionine,>97%, 250µCi (9.25MBq)
Medchemexpress LLC Doxapram-d8 | 309-29-5 | 99.5% | 386.56 g/mol | C24H22D8N2O2 | 10 MG
Doxapram-d8 is a deuterium-labeled form of doxapram provided as a research standard for analytical and pharmacological studies. It functions as a respiratory stimulant analog and is used primarily as a stable-isotope internal standard for quantitative mass spectrometry and method development. The material is supplied as a high-purity solid suitable for laboratory handling.
- Deuterium-labeled internal standard for quantitation.
- High chemical purity and isotopic enrichment.
- Solid, white to off-white, easy to handle and weigh.
- Suitable for mass spectrometry and pharmacokinetic studies.
- Available in small laboratory pack sizes.
Cambridge Isotope Laboratories ETHYL ACETATE (2-13C, 99%), 1 G, 58735-82-3
ETHYL ACETATE (2-13C, 99%), 1 G, 58735-82-3
Cambridge Isotope Laboratories D-XYLOSE (1-13C, 99%), 1 G, 70849-21-7
D-XYLOSE (1-13C, 99%), 1 G, 70849-21-7
Revvity Health Sciences Inc Unquenched 14C & 3H Low Level Standard Set, 20 mL Vial
Unquenched 14C & 3H Low Level Standard Set, 20 mL Vial
Cayman Chemical GlycohyocholIc AcId-d4 1mg
An internal standard for the quantification of glycohyocholic acid by GC- or LC-MS
Cambridge Isotope Laboratories CHENODEOXYCHOLIC ACID (2,2,3,4,4-D5, 98%), 0.05 G, 52840-12-7
CHENODEOXYCHOLIC ACID (2,2,3,4,4-D5, 98%), 0.05 G, 52840-12-7
Cambridge Isotope Laboratories 2-OCTANOYL-1,3-DISTEARIN (OCTANOYL-1,2-13C2, 99%), 1 G
2-OCTANOYL-1,3-DISTEARIN (OCTANOYL-1,2-13C2, 99%), 1 G
Medchemexpress LLC Lomefloxacin-d5 (hydrochloride) | 98079-52-8 | 99.9% | 392.84 | C17H15D5ClF2N3O3 | 10 MG
Lomefloxacin-d5 (hydrochloride) is the deuterium-labeled analogue of the antibiotic lomefloxacin, supplied as a hydrochloride salt and intended for use as an analytical reference standard and tracer for quantitative methods. It is formulated and tested for high purity and supplied with supporting COA and SDS documentation.
- Deuterated internal standard for quantitative NMR, GC-MS, and LC-MS analysis.
- High reported purity by LC-MS (≈99.9%).
- Provided as a hydrochloride salt for improved stability.
- Supplied with certificate of analysis and SDS for traceability.
- Recommended storage at 4°C; in solvent, -80°C for long-term storage.
Cayman Chemical Latnoprostfree acId-d4 500ug
An internal standard for the quantification of latanoprost (free acid) by GC- or LC-MS
Medchemexpress LLC Rivastigmine-d4 tartrate | 129101-54-8 | 404.45 | C18H24D4N2O8 | 1 MG
Rivastigmine-d4 tartrate is a deuterium-labeled analog of rivastigmine tartrate supplied for research use. It is a cholinesterase inhibitor used in studies of neurodegenerative diseases and is suitable as an isotopic internal standard or tracer in analytical and pharmacokinetic workflows.
- Deuterium-labeled for use as an internal standard and tracer in analytical studies.
- Used to study cholinesterase inhibition relevant to Alzheimer's and Parkinson's research.
- Blood-brain barrier permeable analog appropriate for in vitro and in vivo models.
- High solubility in water (approx. 50 mg/mL) facilitates stock solution preparation.
- Provided in a small pack size suitable for discovery and analytical workflows.
- For research use only; not for human or clinical use.
Cambridge Isotope Laboratories Di-n-Pentyl phthalate (unlabeled) 100 ug/mL in nonane 1 2 mL
Di-n-Pentyl phthalate (unlabeled) 100 ug/mL in nonane 1 2 mL
Cambridge Isotope Laboratories L-Alanine (3-13C 99% 2-D 96%) 0 5 g
L-Alanine (3-13C 99% 2-D 96%) 0 5 g