accessibility menu, dialog, popup

Test

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.
Quantity 
  • (28)
  • (7)
  • (3)
  • (17)
Grade 
  • (52)
  • (2)
Molecular Weight (g/mol) 
  • (1)
  • (2)
  • (1)
  • (3)
  • (3)
  • (3)
  • (2)
  • (3)
  • (1)
  • (1)
  • (2)
  • (1)
  • (1)
  • (2)
  • (1)
  • (1)
  • (1)
  • (3)
  • (1)
  • (3)
  • (2)
  • (1)
  • (2)
  • (2)
  • (1)
  • (1)
  • (2)
  • (3)
  • (2)
  • (2)
Color 
  • (2)
  • (1)
  • (2)
  • (4)
  • (11)
  • (30)
  • (2)
Percent Purity 
  • (2)
  • (2)
  • (1)
  • (1)
  • (25)
  • (2)
  • (3)
  • (2)
  • (3)
  • (1)
  • (2)
  • (3)
  • (1)
  • (2)
  • (2)
Keyword Search: buffer Clear all selections

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

Selected Filters

Clear all

Keyword Search

buffer

Narrow Results

Narrow Results

No results found within this category. Try removing some selected filters and try again.

category

brands

  • (52)
  • (3)

Quantity

  • (28)
  • (7)
  • (3)
  • (17)

Grade

  • (52)
  • (2)

Molecular Weight (g/mol)

  • (1)
  • (2)
  • (1)
  • (3)
  • (3)
  • (3)
  • (2)
  • (3)
  • (1)
  • (1)
  • (2)
  • (1)
  • (1)
  • (2)
  • (1)
  • (1)
  • (1)
  • (3)
  • (1)
  • (3)
  • (2)
  • (1)
  • (2)
  • (2)
  • (1)
  • (1)
  • (2)
  • (3)
  • (2)
  • (2)

Color

  • (2)
  • (1)
  • (2)
  • (4)
  • (11)
  • (30)
  • (2)

Percent Purity

  • (2)
  • (2)
  • (1)
  • (1)
  • (25)
  • (2)
  • (3)
  • (2)
  • (3)
  • (1)
  • (2)
  • (3)
  • (1)
  • (2)
  • (2)

For Use With (Application)

  • (1)
  • (8)
  • (6)
  • (5)

For Use With (Equipment)

  • (3)
1 – 15 of 32 results
3

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
4

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
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
5

(±)-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
6

MMAD-d8, MedChemExpress

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

ENCOMPASS 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
7

Maxacalcitol-d6, MedChemExpress

MedChemExpress Maxacalcitol-D6 is the deuterated form of Maxacalcitol (22-Oxacalcitriol), which is a non-calcemic vitamin D3 analog and VDR ligand of VDR-like receptors.

ENCOMPASS
Percent Purity 96.8%
Molecular Weight (g/mol) 424.65
Color White
Physical Form Solid
Chemical Name or Material Maxacalcitol-d6
Grade Research
SMILES O[C@@H](C[C@H](O)C/1=C)CC1=C\C=C2[C@@](CC[C@@H]3[C@@H](OCCC(C([2H])([2H])[2H])(C([2H])([2H])[2H])O)C)([H])[C@]3(C)CCC\2
Purity Grade Notes Research
Recommended Storage 4°C, protect from light, stored under nitrogen∣The compound is unstable in solutions, freshly prepared is recommended.
Shelf Life 4°C, protect from light, stored under nitrogen∣The compound is unstable in solutions, freshly prepared is recommended.
Molecular Formula C26H36D6O4
Formula Weight 424.65
8

Alfacalcidol-d6, MedChemExpress

MedChemExpress Alfacalcidol-d6 is the deuterium labeled Alfacalcidol. Alfacalcidol is a non-selective VDR activator.

ENCOMPASS
Molecular Weight (g/mol) 406.67
Color White
Physical Form Solid
Chemical Name or Material Alfacalcidol-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](CCCC(C([2H])([2H])[2H])C([2H])([2H])[2H])C)([H])[C@]3(C)CCC\2
For Use With (Application) Metabolism-sugar/lipid metabolism
Percent Purity 98.0%
CAS 1641940-94-4
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 C27H38D6O2
Formula Weight 406.67
9

Proguanil-d6, MedChemExpress

MedChemExpress Proguanil D6 is the deuterium labeled Proguanil, which is a prophylactic antimalarial drug.

ENCOMPASS
10

Paricalcitol-d6, MedChemExpress

MedChemExpress Paricalcitol-d6 is the deuterium labeled Paricalcitol. Paricalcitol is a drug used for the prevention and treatment of secondary hyperparathyroidism (excessive secretion of parathyroid hormone) associated with chronic renal failure.

ENCOMPASS
Molecular Weight (g/mol) 422.67
Color White
Physical Form Solid
Chemical Name or Material Paricalcitol-d6
Grade Research
SMILES C[C@]([C@@H]([C@@H](/C=C/[C@@H](C(C([2H])([2H])[2H])(C([2H])([2H])[2H])O)C)C)CC1)(CCC/2)[C@@]1(C2=C\C=C3C[C@H](C[C@@H](C/3)O)O)[H]
For Use With (Application) Metabolism-sugar/lipid metabolism
Percent Purity 99.64%
CAS 2070009-67-3
Solubility Information DMSO : 100 mg/mL (236.59 mM; Need ultrasonic)
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 C27H38D6O3
Formula Weight 422.67
11

Quetiapine-d4 fumarate, MedChemExpress

MedChemExpress Quetiapine D4 fumarate is the deuterium labeled Quetiapine fumarate. Quetiapine fumarate is a 5-HT receptors agonist and a dopamine receptor antagonist. Antidepressant and anxiolytic effects.

ENCOMPASS_PREFERRED
12

Nepafenac-d5, MedChemExpress

MedChemExpress Nepafenac D5 (AHR-9434 D5) is the deuterium labeled Nepafenac, which is a selective COX-2 inhibitor.

ENCOMPASS
Molecular Weight (g/mol) 259.31
Color Yellow
Physical Form Solid
Chemical Name or Material Nepafenac-d5
Grade Research
SMILES O=C(C1=C([2H])C([2H])=C([2H])C([2H])=C1[2H])C2=CC=CC(CC(N)=O)=C2N
Percent Purity 98.0%
CAS 1246814-53-8
Solubility Information DMSO : ≥ 100 mg/mL (385.64 mM)
Synonym AHR-9434-d5 AL-6515-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 C15H9D5N2O2
Formula Weight 259.31
13

VD2-d3, MedChemExpress

MedChemExpress VD2-d3 is the deuterium labeled vitamin D2.

ENCOMPASS 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
14

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 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
15

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