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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

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
5

Fexofenadine-d6, MedChemExpress

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

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
6

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
7

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
8

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
9

(±)-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
10

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
11

1alpha, 25-Dihydroxy VD2-d6, MedChemExpress

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

ENCOMPASS_PREFERRED
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
12

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
13

Cycloguanil-d6, MedChemExpress

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

ENCOMPASS_PREFERRED
14

Irbesartan-d4, MedChemExpress

MedChemExpress Irbesartan D4 is the deuterium labeled Irbesartan, which is a highly potent and specific angiotensin II type 1 (AT1) receptor antagonist.

ENCOMPASS_PREFERRED
15

VX-984, MedChemExpress

MedChemExpress VX-984 (M9831) is an orally active, potent, selective and BBB-penetrated DNA-PK inhibitor. VX-984 efficiently inhibits NHEJ (non-homologous end joining) and increases DSBs (DNA double-strand breaks). VX-984 can be used for glioblastomas (GBM) and non-small cell lung cancer (NSCLC) research.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 415.49
Color White
Physical Form Solid
Chemical Name or Material VX-984
Grade Research
SMILES O=C(C1=CC=NC2=C([C@H](C)CNC3=CC(C4=C([2H])N=C(C)N=C4[2H])=NC=N3)C=CC=C12)NC
For Use With (Application) Cancer-Kinase/protease
Percent Purity 98.34%
CAS 1476074-39-1
Solubility Information DMSO : 10 mg/mL (24.07 mM; Need ultrasonic)
Synonym M9831
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 C23H21D2N7O
Formula Weight 415.49