Isotopically Labeled Compounds
Cayman Chemical CEP-LysIn-d4 500UG
An internal standard for the quantification of CEP-Lysine by GC- or LC-MS
Sigma Aldrich Fine Chemicals Biosciences Methanol d4 99.8 atom D50G
METHANOL Methanol d4 99.8 atom D50G
Cayman Chemical PalmItIc AcId-d2 500mg
An internal standard for the quantification of palmitic acid by GC- or LC-MS
Medchemexpress LLC (R)-praziquantel-d11 | 1399880-38-6 | MFCD00005008 | 99.6% | 323.47 | C19H13D11N2O2 | 1MG
(R)-Praziquantel-d11 is the deuterium-labeled R-enantiomer of praziquantel supplied as a research-grade analytical standard. It is intended for use as an internal standard in mass spectrometry and for laboratory studies of the active enantiomer's pharmacology; it is supplied in milligram quantities and is not for human or clinical use.
- Deuterium-labeled R-enantiomer (d11) for analytical use.
- Suitable as an internal standard for mass spectrometry.
- High chemical purity (99.6%) and defined molecular weight (323.47).
- Molecular formula C19H13D11N2O2.
- Supplied in small-mass formats for research use only.
Cayman Chemical ThIodIglycolIc AcId-d4 500UG
An internal standard for the quantification of TDGA by GC- or LC-MS
Sigma Aldrich Fine Chemicals Biosciences Tetrahydrofuran-d8 99.5 at1G
Tetrahydrofuran-d8 may be used as a solvent in the synthesis of deuteriotris[bis(trimethylsilyl)amido]thorium and deuteriotris[bis(trimethylsiiyl)amido]uranium.
Medchemexpress LLC Isobutylparaben-d4 | 1219805-33-0 | 98.5% | 198.25 g/mol | C11H10D4O3 | 1 MG
Isobutylparaben-d4 is the deuterium-labeled analogue of isobutylparaben used as a stable isotope internal standard for analytical and research applications. It is provided as a high-purity, fully characterized material designed to support quantitative mass spectrometry, method development, and calibration workflows.
- High isotopic enrichment for accurate internal standardization.
- High purity suitable for quantitative analytical use.
- Optimized for mass spectrometry and chromatographic methods.
- Supplied in measured small quantities for standards preparation.
- Certificate of analysis documents purity and isotopic enrichment.
Medchemexpress LLC 1,2-Propylene-d6 carbonate | 202480-74-8 | MFCD00142486 | 98.7% | 108.13 | C4D6O3 | 25 MG
1,2-Propylene-d6 carbonate is the deuterium-labeled analogue of 1,2-propylene carbonate used as a stable-isotope internal standard and tracer for quantitative analysis by NMR, GC-MS, and LC-MS. Deuteration provides isotopic distinction for accurate quantitation in metabolic and analytical studies.
- Deuterium-labeled analogue for isotope-dilution quantitation.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS.
- High purity for reliable analytical results.
- Molecular weight 108.13 and formula C4D6O3.
- Colorless to light yellow liquid physical form.
- Available in small pack sizes for analytical use.
Cambridge Isotope Laboratories (RS)-2-HYDROXYGLUTARIC ACID, DISODIUM SALT (2,3,3-D3; OD, 98%) CP 95%, 0.1 G
(RS)-2-HYDROXYGLUTARIC ACID, DISODIUM SALT (2,3,3-D3; OD, 98%) CP 95%, 0.1 G
Cambridge Isotope Laboratories SODIUM NITRITE (15N, 98%+), 1 G, 68378-96-1
SODIUM NITRITE (15N, 98%+), 1 G, 68378-96-1
Cambridge Isotope Laboratories L-ARGININE:HCL (D7, 98%), 0.1 G, 204244-77-9
L-ARGININE:HCL (D7, 98%), 0.1 G, 204244-77-9
Cambridge Isotope Laboratories 1,25-DIHYDROXYVITAMIN D3 UNLABELED (CHEM. PURITY 95%), 1 MG
1,25-DIHYDROXYVITAMIN D3 UNLABELED (CHEM. PURITY 95%), 1 MG
Cambridge Isotope Laboratories L-GLUTAMINE (15N2, 98%), 0.25 G, 204451-48-9
L-GLUTAMINE (15N2, 98%), 0.25 G, 204451-48-9
TARGETMOL CHEMICALS INC D-ERYTHRO-SPHINGOSINE 50MG
Also available in 1 mL, 10 mg, 25 mg, 100 mg, 500 mg and bulk. Please contact Fisher for quotes. D-erythro-Sphingosine (trans-4-Sphingenine) is a protein kinase C (PKC) inhibitor. D-erythro-Sphingosine (Erythrosphingosine) is also a PP2A activator Purity 98%