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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

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
5

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
6

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
7

Eldecalcitol-d6, MedChemExpress

MedChemExpress Eldecalcitol-d6 is the deuterium labeled Eldecalcitol. Eldecalcitol is an orally active analogue of active vitamin D used in the treatment of osteoporosis.

ENCOMPASS_PREFERRED
8

Fexofenadine-d6, MedChemExpress

MedChemExpress Fexofenadine D6 (MDL-16455 D6) is deuterium labeled is Fexofenadine, which is an antihistamine pharmaceutical agent.

ENCOMPASS ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 507.69
Color White
Physical Form Powder
Chemical Name or Material Fexofenadine-d6
Grade Research
SMILES OC(C1=CC=CC=C1)(C2=CC=CC=C2)C3CCN(CCCC(C4=CC=C(C(C(O)=O)(C([2H])([2H])[2H])C([2H])([2H])[2H])C=C4)O)CC3
For Use With (Application) Neuroscience-Neuromodulation
Percent Purity 98.0%
CAS 548783-71-7
Synonym MDL-16455-d6 Terfenadine carboxylate-d6
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 C32H33D6NO4
Formula Weight 507.69
9

Sofosbuvir-d6, MedChemExpress

MedChemExpress Sofosbuvir D6 (PSI-7977 D6) is the deuterium labeled Sofosbuvir. Sofosbuvir (PSI-7977) is an active inhibitor of HCV RNA replication in the HCV replicon assay, demonstrates potent anti-hepatitis C virus (HCV) activity.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 535.49
Color White
Physical Form Solid
Chemical Name or Material Sofosbuvir-d6
Grade Research
SMILES O=C1N([C@H]2[C@]([C@H](O)[C@@H](CO[P@](OC3=CC=CC=C3)(N[C@@H](C)C(OC(C([2H])([2H])[2H])C([2H])([2H])[2H])=O)=O)O2)(C)F)C=CC(N1)=O
Percent Purity 95.0%
CAS 1868135-06-1
Synonym PSI-7977-d6 GS-7977-d6
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 C22H23D6FN3O9P
Formula Weight 535.49
10

(±)-Levomepromazine-d6, MedChemExpress

MedChemExpress (±)-Levomepromazine D6 ((±)-Methotrimeprazine D6) is the deuterium labeled Methotrimeprazine, which is a D3 dopamine and Histamine H1 receptor antagonist.

ENCOMPASS_PREFERRED
11

Azilsartan-d5, MedChemExpress

MedChemExpress Azilsartan D5 (TAK-536 D5) is the deuterium labeled Azilsartan(TAK-536), which is a specific and potent angiotensin II type 1 receptor antagonist.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 461.48
Color White
Physical Form Solid
Chemical Name or Material Azilsartan-d5
Grade Research
SMILES OC(C1=CC=CC2=C1N(C(OC(C([2H])([2H])[2H])([2H])[2H])=N2)CC(C=C3)=CC=C3C4=CC=CC=C4C5=NC(ON5)=O)=O
Percent Purity 98.0%
CAS 1346599-45-8
Synonym TAK-536-d5
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 C25H15D5N4O5
Formula Weight 461.48
12

MMAD-d8, MedChemExpress

MedChemExpress D8-MMAD is a deuterated form of MMAD, which is a microtubule disrupting agent.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 779.11
Color Off-White
Physical Form Solid
Chemical Name or Material MMAD-d8
Grade Research
SMILES O=C(N[C@H](C1=NC=CS1)CC2=CC=CC=C2)[C@H](C)[C@@H](OC)[C@H]3N(C(C[C@@H](OC)[C@H]([C@@H](C)CC)N(C([C@@](C([2H])(C([2H])([2H])[2H])C([2H])([2H])[2H])([2H])NC([C@H](C(C)C)NC)=O)=O)C)=O)CCC3
For Use With (Application) Cancer-programmed cell death
Percent Purity 99.12%
Solubility Information DMSO : ≥ 100 mg/mL (128.35 mM)
Synonym Demethyldolastatin 10-d8 Monomethylauristatin D-d8 Monomethyl Dolastatin 10-d8
Purity Grade Notes Research
Recommended Storage Powder -20°C 3 years, 4°C 2 years∣The compound is unstable in solutions, freshly prepared is recommended.
Shelf Life Powder -20°C 3 years, 4°C 2 years∣The compound is unstable in solutions, freshly prepared is recommended.
Molecular Formula C41H58D8N6O6S
Formula Weight 779.11
13

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
14

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
15

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