accessibility menu, dialog, popup

UserName
Viewing profile as user:

Isotopically Labeled Compounds

Chemicals to which isotopes have been attached in order to label specific atoms. Isotopically labeled compounds are commonly used in synthetic chemistry, characterization techniques such as NMR, and biology.
Quantity 
  • (1)
  • (34)
  • (1)
  • (1)
  • (16)
  • (2)
  • (1)
  • (13)
  • (1)
  • (19)
  • (60)
  • (6)
  • (11)
  • (2)
  • (2)
  • (5)
  • (43)
  • (1)
  • (10)
  • (1)
  • (4)
  • (1)
  • (1)
  • (1)
  • (21)
  • (48)
  • (2)
  • (3)
  • (5)
  • (1)
  • (1)
  • (37)
  • (1)
  • (21)
  • (5)
  • (1)
  • (1)
  • (13)
  • (23)
  • (2)
  • (3)
  • (13)
  • (1)
  • (31)
Molecular Weight (g/mol) 
  • (2)
  • (1)
  • (15)
  • (1)
  • (4)
  • (1)
  • (3)
  • (2)
  • (2)
  • (1)
  • (4)
  • (1)
  • (12)
  • (1)
  • (1)
  • (1)
  • (3)
  • (1)
  • (55)
  • (3)
  • (1)
  • (4)
  • (1)
  • (2)
  • (2)
  • (2)
  • (4)
  • (1)
  • (3)
  • (2)
  • (11)
  • (2)
  • (1)
  • (2)
  • (2)
  • (1)
  • (29)
  • (2)
  • (3)
  • (2)
  • (4)
  • (29)
  • (2)
  • (6)
  • (2)
  • (1)
  • (3)
  • (23)
  • (2)
  • (2)
  • (2)
  • (6)
  • (1)
  • (2)
  • (1)
  • (5)
  • (7)
  • (30)
  • (1)
  • (2)
  • (4)
  • (2)
  • (9)
  • (2)
  • (10)
  • (2)
  • (20)
  • (55)
  • (3)
  • (1)
  • (11)
  • (4)
  • (2)
  • (6)
  • (1)
  • (1)
  • (2)
  • (4)
  • (1)
Grade 
  • (1)
  • (3)
  • (252)
  • (1)
  • (6)
Percent Purity 
  • (2)
  • (3)
  • (1)
  • (1)
  • (4)
  • (3)
  • (1)
  • (1)
  • (18)
  • (1)
  • (1)
  • (9)
  • (27)
  • (18)
  • (4)
  • (18)
  • (14)
Color 
  • (3)
  • (2)
  • (1)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

category

brands

  • (1)
  • (8)
  • (1)
  • (1)
  • (2)
  • (129)
  • (37)
  • (12)
  • (1)
  • (1)
  • (1)
  • (6)
  • (2,321)
  • (5)
  • (881)
  • (8)
  • (8)
  • (2)
  • (2)
  • (2)
  • (8)
  • (1)
  • (2)
  • (12)
  • (1)
  • (2)
  • (4,282)
  • (60)
  • (2)
  • (1)
  • (1)
  • (1)
  • (6)
  • (1)
  • (4)
  • (1)
  • (2)
  • (522)
  • (3)
  • (1)
  • (32)
  • (463)
  • (2)
  • (6)
  • (1)
  • (12)
  • (379)
  • (1)
  • (1)
  • (48)

special interests

  • (1)
  • (3)
  • (5,450)

Quantity

  • (1)
  • (34)
  • (1)
  • (1)
  • (16)
  • (2)
  • (1)
  • (13)
  • (1)
  • (19)
  • (60)
  • (6)
  • (11)
  • (2)
  • (2)
  • (5)
  • (43)
  • (1)
  • (10)
  • (1)
  • (4)
  • (1)
  • (1)
  • (1)
  • (21)
  • (48)
  • (2)
  • (3)
  • (5)
  • (1)
  • (1)
  • (37)
  • (1)
  • (21)
  • (5)
  • (1)
  • (1)
  • (13)
  • (23)
  • (2)
  • (3)
  • (13)
  • (1)
  • (31)

Molecular Weight (g/mol)

  • (2)
  • (1)
  • (15)
  • (1)
  • (4)
  • (1)
  • (3)
  • (2)
  • (2)
  • (1)
  • (4)
  • (1)
  • (12)
  • (1)
  • (1)
  • (1)
  • (3)
  • (1)
  • (55)
  • (3)
  • (1)
  • (4)
  • (1)
  • (2)
  • (2)
  • (2)
  • (4)
  • (1)
  • (3)
  • (2)
  • (11)
  • (2)
  • (1)
  • (2)
  • (2)
  • (1)
  • (29)
  • (2)
  • (3)
  • (2)
  • (4)
  • (29)
  • (2)
  • (6)
  • (2)
  • (1)
  • (3)
  • (23)
  • (2)
  • (2)
  • (2)
  • (6)
  • (1)
  • (2)
  • (1)
  • (5)
  • (7)
  • (30)
  • (1)
  • (2)
  • (4)
  • (2)
  • (9)
  • (2)
  • (10)
  • (2)
  • (20)
  • (55)
  • (3)
  • (1)
  • (11)
  • (4)
  • (2)
  • (6)
  • (1)
  • (1)
  • (2)
  • (4)
  • (1)

Grade

  • (1)
  • (3)
  • (252)
  • (1)
  • (6)

Percent Purity

  • (2)
  • (3)
  • (1)
  • (1)
  • (4)
  • (3)
  • (1)
  • (1)
  • (18)
  • (1)
  • (1)
  • (9)
  • (27)
  • (18)
  • (4)
  • (18)
  • (14)

Color

  • (3)
  • (2)
  • (1)

Search Within Results
Keyword Search:
2,446 – 2,460 of 9,147 results
2,446

Medchemexpress LLC L-lysine-3,3,4,4,5,5,6,6-d8 hydrochloride | 344298-93-7 | 99.9% | 190.70 | C6H7D8ClN2O2 | 10 MG
SDP

L-Lysine-d8 hydrochloride is the deuterium-labeled L-enantiomer of lysine supplied as the hydrochloride salt. It is used as a stable isotope internal standard and tracer for quantitative mass spectrometry and biochemical assays.

  • Deuterium-labeled (d8) for mass spectrometry standards and tracing
  • Supplied as a hydrochloride solid, suitable for laboratory use
  • Molecular weight 190.70, CAS 344298-93-7
  • High chemical purity for analytical applications
  • Available in small quantities (10 MG) for standards preparation

ENCOMPASS_PREFERRED
2,447

Cayman Chemical RufInamIde-15N-d2 1mg
SDP

An internal standard for the quantification of rufinamide by GC- or LC-MS

ENCOMPASS_PREFERRED
2,448

Cambridge Isotope Laboratories (DSS) SODIUM 2,2-DIMETHYL- 2-SILAPENTANE-5-SULFONATE-D6 (D, 98%), 1 G, 384664-85-3

(DSS) SODIUM 2,2-DIMETHYL- 2-SILAPENTANE-5-SULFONATE-D6 (D, 98%), 1 G, 384664-85-3

ENCOMPASS_PREFERRED
2,449

Cayman Chemical CystathIonIn-d4 1mg
SDP

An internal standard for the quantification of cystathionine by GC- or LC-MS

ENCOMPASS_PREFERRED
2,450

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

ENCOMPASS
2,451

Cambridge Isotope Laboratories GLYCAN-N58-13C-GAL6,6' ([GALACTOSE-13C6, 99%]2)*, 500 PMOL

GLYCAN-N58-13C-GAL6,6' ([GALACTOSE-13C6, 99%]2)*, 500 PMOL

ENCOMPASS
2,452

Medchemexpress LLC 4-bromoaniline-d4 | 61357-76-4 | 99.9% | 176.05 g/mol | C6H2D4BrN | 100mg
SDP

4-Bromoaniline-d4 is a deuterium labeled 4-Bromoaniline

ENCOMPASS_PREFERRED
2,453

Medchemexpress LLC Thiophanat-ethyl-d10 | 1398066-16-4 | 98.0% | 380.5 g·mol^-1 | C14H18N4O4S2 | 1 MG
SDP

Thiophanat-ethyl-d10 is the deuterium-labeled analogue of thiophanat-ethyl, provided as an isotopically labeled reference standard for analytical and research applications. Supplied in microgram/milligram quantities, it is intended for laboratory method development, calibration, and quantitative mass spectrometry.

  • Deuterium-labeled internal standard for mass spectrometry and chromatography.
  • High isotopic enrichment (≈99 atom % D) and minimum 98.0% chemical purity.
  • Supplied as a small-mass vial suitable for trace-level analytical work.
  • Applicable for method development, calibration, and quantitative analysis.
  • For research use only; not for human or clinical applications.

ENCOMPASS_PREFERRED
2,454

Medchemexpress LLC Paclobutrazol-d4 | 297.82 | C15H16D4ClN3O | 5mg
SDP

Paclobutrazol-d4 is the deuterium labeled Paclobutrazol Paclobutrazol is a triazole-containing plant growth retardant that is known to inhibit the biosynthesis of gibberellins[1]

ENCOMPASS_PREFERRED
2,455

Medchemexpress LLC Choline-d13 chloride | 352438-97-2 | 99.90% | 1 MG
SDP

Choline-d13 (chloride) is a deuterium-labeled form of Choline chloride, which is an organic compound and a quaternary ammonium salt. It serves as an acyl group acceptor and a choline acetyltransferase substrate. Choline chloride is also utilized as an important feed additive, particularly for chickens, where it promotes growth.

  • 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
  • Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs

ENCOMPASS_PREFERRED
2,456

Cayman Chemical ProstaglndIn D2-d4 50ug
SDP

An internal standard for the quantification of PGD2 by GC- or LC-MS

ENCOMPASS_PREFERRED
2,457

Cambridge Isotope Laboratories Cytidine phosphoramidite (U-15N3 98%) CP 95% 10 mg

Cytidine phosphoramidite (U-15N3 98%) CP 95% 10 mg

ENCOMPASS
2,458

Revvity Health Sciences Inc SDF-1α (human, recombinant), [125I]-, 25µCi

SDF-1α (human, recombinant), [125I]-, 25µCi

ENCOMPASS
2,459

Revvity Health Sciences Inc Iodine-125 Radionuclide, 2mCi, 10-5M NaOH (pH 8-11), Concentration: >350mCi/mL

Iodine-125 Radionuclide, 2mCi, 10-5M NaOH (pH 8-11), Concentration: >350mCi/mL

ENCOMPASS
2,460

eMolecules​ Medchem Express / L-Glutamine-15N2 / 5mg / 761506717 / HY-N0390S8 / / 204451-48-9 / MFCD00084216 / 148.132 / C5H10N2O3

Medchem Express / L-Glutamine-15N2 / 5mg / 761506717 / HY-N0390S8 / / 204451-48-9 / MFCD00084216 / 148.132 / C5H10N2O3

ENCOMPASS_PREFERRED