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Isotope Standards

Compounds (solids, liquids, gasses) with well-defined isotopic compositions that act as the ultimate sources of accuracy in mass spectrometric measurements of isotope ratios.
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Keyword Search:
61 – 75 of 319 results
61

Cayman Chemical Leukotriene A4 Hydrolase hum
SDP

Source: Active recombinant C-terminal His-tagged enzyme expressed in E. coli • MW: ~69 kDa • A bifunctional zinc metalloenzyme that converts LTA4 into LTB4, a potent neutrophil chemoattractant; potential drug target for a variety of indications associated with leukocyte infiltration to sites of inflammation; has application for the screening of inhibitors of LTB4 synthesis

ENCOMPASS_PREFERRED
62

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000433580 ENZALUTAMIDE-D6 5MG

ENCOMPASS_PREFERRED
63

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000378786 RIBOCICLIB-D6 5MG

ENCOMPASS_PREFERRED
64

Cayman Chemical Leukotriene B4-3-aminopropyla

An analog of LTB4 that binds to the BLT1 and BLT2 receptors with Ki values of 5.1 and 1,227 nM, respectively

ENCOMPASS_PREFERRED
65

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000376736 IMATINIB-D4 1MG

ENCOMPASS_PREFERRED
66

Cayman Chemical VItamIn K3-d8 10mg
SDP

An internal standard for the quantification of vitamin K3 by GC- or LC-MS

ENCOMPASS_PREFERRED
67

Brainxell Inc BrainFast D4 Supplement (1mL)
SDP

Accelerates the maturation of neurons (1mL)

ENCOMPASS_PREFERRED
68

Cambridge Isotope Laboratories EPA Method 533 Isotope Dilution Standard PDS 1 2 mL

EPA Method 533 Isotope Dilution Standard PDS 1 2 mL

ENCOMPASS
69

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000381277 CLORPRENALINE-D6 1MG

ENCOMPASS_PREFERRED
70

Medchemexpress LLC VD2-D3 1MG
SDP

501873193 VD2-D3 1MG

ENCOMPASS_PREFERRED
71

Medchemexpress LLC MAXACALCITOL-D6 1MG
SDP

501873192 MAXACALCITOL-D6 1MG

ENCOMPASS_PREFERRED
72

Medchemexpress LLC Midostaurin-d5 | 00-00-0 | 98.0% | 575.67 g/mol | C35H25D5N4O4 | 1 MG
SDP

Midostaurin-d5 is a deuterium-labeled analogue of midostaurin supplied as a powder for analytical and biochemical research. It is intended primarily as an isotopically labeled internal standard for pharmacokinetic, metabolic, and bioanalytical assays.

  • Deuterium-labeled internal standard for midostaurin studies.
  • Molecular formula C35H25D5N4O4; molecular weight 575.67 g/mol.
  • Purity 98.0% as supplied.
  • Physical form: powder; typical package size 1 mg.
  • Storage: powder -20°C (up to 3 years) or 4°C (up to 2 years).
  • Solubility: DMSO ≈15 mg/mL; sonication and warming recommended.

ENCOMPASS_PREFERRED
73

Medchemexpress LLC 25-HYDROXY VD2-D6 5MG
SDP

501873191 25-HYDROXY VD2-D6 5MG

ENCOMPASS_PREFERRED
74

eMolecules​ Medchem Express / Dimethyl fumarate-d6 / 1mg / 705861243 / HY-17363S / / 66487-95-4 / [null] / 150.163 / C6H8O4

Medchem Express / Dimethyl fumarate-d6 / 1mg / 705861243 / HY-17363S / / 66487-95-4 / [null] / 150.163 / C6H8O4

ENCOMPASS_PREFERRED
75

Medchemexpress LLC CALCITRIOL D6 1MG
SDP

501873966 CALCITRIOL D6 1MG

ENCOMPASS_PREFERRED