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Isotope Standards

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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1 – 15 of 46 results
4

25-Hydroxy VD2-d6, MedChemExpress

MedChemExpress 25-Hydroxy VD2-d6 is the deuterium labeled 25-Hydroxy VD2.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 418.68
Color White
Physical Form Solid
Chemical Name or Material 25-Hydroxy VD2-d6
Grade Research
SMILES O[C@@H](CCC/1=C)CC1=C\C=C2[C@@](CC[C@@H]3[C@@H](/C=C/[C@H](C)C(C([2H])([2H])[2H])(C([2H])([2H])[2H])O)C)([H])[C@]3(C)CCC\2
Percent Purity 98.96%
CAS 1262843-46-8
Solubility Information DMSO : 100 mg/mL (238.85 mM; Need ultrasonic)
Purity Grade Notes Research
Recommended Storage 4°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Shelf Life 4°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Molecular Formula C28H38D6O2
Formula Weight 418.68
5

Cycloguanil-d6, MedChemExpress

MedChemExpress Cycloguanil D6 is the deuterium labeled Cycloguanil, which is a dihydrofolate reductase inhibitor.

ENCOMPASS_PREFERRED
6

Calcifediol-d6, MedChemExpress

MedChemExpress Calcifediol-d6 is the deuterium labeled Calcifediol. Calcifediol, a major circulating metabolite of vitamin D3, is a potent VDR inhibitor.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 406.67
Color White
Physical Form Solid
Chemical Name or Material Calcifediol-d6
Grade Research
SMILES O[C@@H](CCC/1=C)CC1=C\C=C2[C@@](CC[C@@H]3[C@@H](CCCC(C([2H])([2H])[2H])(C([2H])([2H])[2H])O)C)([H])[C@]3(C)CCC\2
For Use With (Application) Metabolism-sugar/lipid metabolism
Percent Purity 98.0%
CAS 78782-98-6
Purity Grade Notes Research
Recommended Storage -20°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Shelf Life -20°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Molecular Formula C27H38D6O2
Formula Weight 406.67
7

1alpha, 25-Dihydroxy VD2-d6, MedChemExpress

MedChemExpress 1alpha, 25-Dihydroxy VD2-D6 is a deuterated form of vitamin D.

ENCOMPASS_PREFERRED ENCOMPASS
CAS 216244-04-1
Molecular Weight (g/mol) 434.68
Chemical Name or Material 1alpha, 25-Dihydroxy VD2-d6
Grade Research
SMILES O[C@H](C/1=C)C[C@H](O)CC1=C\C=C2[C@@](CC[C@@H]3[C@@H](/C=C/[C@H](C)C(C([2H])([2H])[2H])(C([2H])([2H])[2H])O)C)([H])[C@]3(C)CCC\2
Purity Grade Notes Research
Recommended Storage Please store the product under the recommended conditions in the Certificate of Analysis.
Shelf Life Please store the product under the recommended conditions in the Certificate of Analysis.
For Use With (Application) Metabolism-sugar/lipid metabolism
Molecular Formula C28H38D6O3
Formula Weight 434.68
8

Enalaprilat-d5 sodium, MedChemExpress

MedChemExpress Enalaprilat (MK-422) D5 Sodium Salt is the deuterium labeled Enalaprilat(MK-422), which is an angiotensin-converting enzyme (ACE) inhibitor.

ENCOMPASS_PREFERRED
9

Doxercalciferol-d3, MedChemExpress

MedChemExpress Doxercalciferol-D3 is the deuterated form of Doxercalciferol, which is a Vitamin D2 analog that acts as a vitamin D receptor activator (VDRA).

ENCOMPASS_PREFERRED
Percent Purity 96.39%
Molecular Weight (g/mol) 415.67
Color White
Physical Form Solid
Chemical Name or Material Doxercalciferol-d3
Grade Research
SMILES O[C@@H](C[C@H](O)C1)C(/C1=C([2H])\C=C2[C@@]3([H])[C@@](CCC\2)(C)[C@@H]([C@H](C)/C=C/[C@H](C)C(C)C)CC3)=C([2H])\[2H]
Purity Grade Notes Research
Recommended Storage -20°C, protect from light, stored under nitrogen∣The compound is unstable in solutions, freshly prepared is recommended.
Shelf Life -20°C, protect from light, stored under nitrogen∣The compound is unstable in solutions, freshly prepared is recommended.
Molecular Formula C28H41D3O2
Formula Weight 415.67
10

Vilazodone-d8, MedChemExpress

MedChemExpress Vilazodone D8 is the a deuterium labeled vilazodone, which is a combined serotonin specific reuptake inhibitor (SSRI) and 5-HT1A receptor partial agonist.

ENCOMPASS_PREFERRED
11

Losartan (D4 Carboxylic Acid), MedChemExpress

MedChemExpress Losartan D4 Carboxylic Acid (E-3174 D4) is the deuterium labeled Losartan(EXP-3174), which is an angiotensin II receptor antagonist.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 440.92
Color Off-White
Physical Form Powder
Chemical Name or Material Losartan (D4 Carboxylic Acid)
Grade Research
SMILES ClC1=C(C(O)=O)N(CC2=C([2H])C([2H])=C(C3=CC=CC=C3C4=NN=NN4)C([2H])=C2[2H])C(CCCC)=N1
For Use With (Application) Metabolism-protein/nucleotide metabolism
CAS 1246820-62-1
Synonym E-3174 D4 EXP-3174 D4
Purity Grade Notes Research
Recommended Storage Please store the product under the recommended conditions in the Certificate of Analysis.
Shelf Life Please store the product under the recommended conditions in the Certificate of Analysis.
Molecular Formula C22H17D4ClN6O2
Formula Weight 440.92
12

Tetrabenazine-d6, MedChemExpress

MedChemExpress Tetrabenazine D6 is the deuterium labeled Tetrabenazine, which is a VMAT-inhibitor used for treatment of hyperkinetic movement disorder.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 323.46
Color Off-White
Physical Form Solid
Chemical Name or Material Tetrabenazine-d6
Grade Research
SMILES O=C1[C@H](CC(C)C)CN2CCC3=CC(OC([2H])([2H])[2H])=C(OC([2H])([2H])[2H])C=C3[C@@]2([H])C1
For Use With (Application) Neuroscience-Neuromodulation
Percent Purity 98.3%
CAS 1392826-25-3
Synonym Ro 1-9569-d6
Purity Grade Notes Research
Recommended Storage 4°C, protect from light∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light)
Shelf Life 4°C, protect from light∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light)
Molecular Formula C19H21D6NO3
Formula Weight 323.46
13

Dabigatran-d4 hydrochloride, MedChemExpress

MedChemExpress Dabigatran (BIBR-953) D4 hydrochloride is deuterium labeled Dabigatran, which is a reversible and selective, direct thrombin inhibitor (DTI) with a Ki value of 4.5 nM.

ENCOMPASS_PREFERRED
14

VD2-d3, MedChemExpress

MedChemExpress VD2-d3 is the deuterium labeled vitamin D2.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 399.67
Color White
Physical Form Solid
Chemical Name or Material VD2-d3
Grade Research
SMILES O[C@@H](CCC/1=C([2H])\[2H])CC1=C([2H])\C=C2[C@@](CC[C@@H]3[C@@H](/C=C/[C@H](C)C(C)C)C)([H])[C@]3(C)CCC\2
For Use With (Application) Metabolism-sugar/lipid metabolism
Percent Purity 95.46%
CAS 1217448-46-8
Solubility Information DMSO : 20 mg/mL (50.04 mM; ultrasonic and warming and heat to 80°C)
Purity Grade Notes Research
Recommended Storage 4°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Shelf Life 4°C, protect from light, stored under nitrogen∣In solvent : -80°C, 6 months∣-20°C, 1 month (protect from light, stored under nitrogen)
Molecular Formula C28H41D3O
Formula Weight 399.67
15

Hydroxy Itraconazole-d8, MedChemExpress

MedChemExpress Hydroxy Itraconazole D8 is the deuterium labeled Hydroxy Itraconazole. Hydroxy Itraconazole is an active metabolite of Itraconazole (ITZ), which is a triazole antifungal agent.

ENCOMPASS_PREFERRED
Percent Purity 98.0%
Molecular Weight (g/mol) 729.68
Color White
Physical Form Powder
Chemical Name or Material Hydroxy Itraconazole-d8
Grade Research
SMILES O=C1N(C(C([2H])([2H])[2H])([2H])C(O)([2H])C([2H])([2H])[2H])N=CN1C2=CC=C(N3CCN(C4=CC=C(OCC5OC(CN6N=CN=C6)(C7=CC=C(Cl)C=C7Cl)OC5)C=C4)CC3)C=C2
Synonym R-63373-d8
Purity Grade Notes Research
Recommended Storage Powder -20°C 3 years, 4°C 2 years∣In solvent -80°C 6 months, -20°C 1 month
Shelf Life Powder -20°C 3 years, 4°C 2 years∣In solvent -80°C 6 months, -20°C 1 month
Molecular Formula C35H30D8Cl2N8O5
Formula Weight 729.68