Isotopically Labeled Compounds
Medchemexpress LLC Acetyl-CoA synthetas 5ug
Recombinant mouse Acetyl-CoA synthetase 1 (ACSS2) is supplied as an N-terminal 6xHis-tagged protein produced in E. coli for biochemical and metabolic research. The protein is provided in microgram quantities with purity >90% (example COA 92%) and an approximate molecular weight of 82.9 kDa, and is intended for use in enzymatic assays, binding studies, and as a reference standard.
- His-tagged recombinant protein for easy purification and detection.
- Purity greater than 90% by reducing SDS-PAGE.
- Approximately 82.9 kDa molecular weight for accurate size reference.
- Produced in E. coli for efficient expression.
- Suitable for enzymatic assays and metabolic studies.
- Provided in small microgram quantities for research use.
- Certificate of analysis available for batch verification.
Cambridge Isotope Laboratories GUANOSINE:H2O (13C10, 98%; 15N5, 96-98%), 5 MG
GUANOSINE:H2O (13C10, 98%; 15N5, 96-98%), 5 MG
Cambridge Isotope Laboratories 5A-ANDROSTAN-3,17-DIONE (ANDROSTANEDIONE) (2,3,4-13C3, 99%), 1 MG
5A-ANDROSTAN-3,17-DIONE (ANDROSTANEDIONE) (2,3,4-13C3, 99%), 1 MG
Apexbio Technology LLC Deoxycholic acid sodium salt 302-95-4 100mg
Deoxycholic acid sodium salt (CAS 302-95-4) is a bile acid derivative that functions as an endogenous ligand for the G protein-coupled bile acid receptor TGR5 Through activation of TGR5 it modulates intracellular signaling pathways and enzymatic activities thereby influencing diverse cellular processes This compound is widely utilized in biomedical research to investigate bile acid-mediated signaling mechanisms and their involvement in physiological and pathological conditions particularly those related to metabolic regulation and gastrointestinal diseases
Medchemexpress LLC Levosulpiride-d3 | 124020-27-5 | 99.8% | 1 MG
Levosulpiride-d3 is the deuterium labeled Levosulpiride, an (S)-enantiomer of sulpiride that acts as a D2 receptor antagonist and atypical antipsychotic agent of the benzamide class. This compound is for research use only.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes have been incorporated into drug molecules for quantitation during drug development.
Cambridge Isotope Laboratories LAMOTRIGINE (5,6-13C2, 99%; 5-AMINO-15N, 98%), 0.01 G
LAMOTRIGINE (5,6-13C2, 99%; 5-AMINO-15N, 98%), 0.01 G
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.
Cayman Chemical NIfuroxazIde-d4 1mg
An internal standard for the quantification of nifuroxazide by GC- or LC-MS
Cayman Chemical SulfadIazIn-d4 5mg
An internal standard for the quantification of sulfadiazine by GC- or LC-MS
Medchemexpress LLC Xanthine | 161770-53-2 | 99.4% | 154.10 g/mol | C5H4N2(15N)2O2 | 5 MG
Xanthine-15N2 is a stable isotope-labeled xanthine supplied as a high-purity analytical standard for mass spectrometry, tracer studies, and metabolic pathway research. The 15N2 labeling provides mass separation from endogenous xanthine, enabling accurate quantitation and recovery correction in LC-MS workflows. Recommended storage and handling preserve isotopic integrity for analytical use.
- High isotopic enrichment (15N) for accurate mass spectrometry quantification.
- High purity suitable for analytical and research applications.
- Molecular weight 154.10 g/mol and formula C5H4N2(15N)2O2 for exact mass calculations.
- Available in small, pre-weighed packs appropriate for trace-level assays.
- Stable when stored under recommended conditions to maintain integrity.
Medchemexpress LLC L-isoleucine-d10 | 35045-71-7 | MFCD00144617 | 98.0% | 141.23 | C6H3D10NO2 | 10 MG
L-Isoleucine-d10 is the deuterium-labeled form of the essential amino acid l-isoleucine, provided as a stable-isotope reagent for analytical and labeling applications. It is a white to off-white solid with high isotopic enrichment and purity appropriate for mass spectrometry and metabolic tracing.
- Deuterium-labeled (d10) analog of l-isoleucine.
- High purity (98.0%) suitable for analytical applications.
- Soluble in water; may require ultrasonic assistance.
- White to off-white solid for convenient handling.
- Suitable as an internal standard for LC-MS/GC-MS and metabolite tracing.
![Revvity Health Sciences Inc L-[<sup>35</sup>S]-Methionine, 10mCi (370MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502809552.jpg-250.jpg)
Revvity Health Sciences Inc L-[35S]-Methionine, 10mCi (370MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME
L-[35S]-Methionine, 10mCi (370MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME