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.

1 – 15 of 46 results

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.

Pricing and Availability

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).

Pricing and Availability
Specifications

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

VD3-d6, MedChemExpress

MedChemExpress VD3-d6 (Vitamin D3-26,26,26,27,27,27-d6) is the deuterium labeled Vitamin D3; tools for determination of Vitamin D3 metabolites in human serum.

Pricing and Availability
Specifications

Molecular Weight (g/mol)	390.67
Color	Light Yellow
Physical Form	Solid
Chemical Name or Material	VD3-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])C)([H])[C@]3(C)CCC\2
For Use With (Application)	Neuroscience-Neuromodulation
Percent Purity	98.0%
CAS	118584-54-6
Solubility Information	DMSO : 100 mg/mL (255.97 mM; Need ultrasonic)
Synonym	Vitamin D3-26,26,26,27,27,27-d6
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	C₂₇H₃₈D₆O
Formula Weight	390.67

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.

Pricing and Availability

(±)-Levomepromazine-d6, MedChemExpress

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

Pricing and Availability

1alpha, 25-Dihydroxy VD2-d6, MedChemExpress

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

Pricing and Availability
Specifications

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

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.

Pricing and Availability

Alfacalcidol-d6, MedChemExpress

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

Pricing and Availability
Specifications

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

Banoxantrone-d12 dihydrochloride, MedChemExpress

MedChemExpress Banoxantrone-d12 (AQ4N-d12) dihydrochloride is the deuterium labeled Banoxantrone dihydrochloride. Banoxantrone is a novel bioreductive agent that can be reduced to a stable, DNA-affinic compound AQ4, which is a potent topoisomerase II inhibitor.

Pricing and Availability
Specifications

Molecular Weight (g/mol)	529.48
Color	Blue
Physical Form	Solid
Chemical Name or Material	Banoxantrone-d12 dihydrochloride
Grade	Research
SMILES	O=N(C([2H])([2H])[2H])(C([2H])([2H])[2H])CCNC1=CC=C(NCCN(C([2H])([2H])[2H])(C([2H])([2H])[2H])=O)C(C(C2=C(O)C=CC(O)=C23)=O)=C1C3=O.Cl.Cl
For Use With (Application)	Cancer-programmed cell death
Percent Purity	98.02%
CAS	1562066-98-1
Synonym	AQ4N-d12 dihydrochloride
Purity Grade Notes	Research
Recommended Storage	4°C, sealed storage, away from moisture∣In solvent : -80°C, 6 months∣-20°C, 1 month (sealed storage, away from moisture)
Shelf Life	4°C, sealed storage, away from moisture∣In solvent : -80°C, 6 months∣-20°C, 1 month (sealed storage, away from moisture)
Molecular Formula	C₂₂H₁₈D₁₂Cl₂N₄O₆
Formula Weight	529.48

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.

Pricing and Availability
Specifications

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

MMAF-d8 hydrochloride, MedChemExpress

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

Pricing and Availability
Specifications

Molecular Weight (g/mol)	776.47
Color	Off-White
Physical Form	Solid
Chemical Name or Material	MMAF-d8 hydrochloride
Grade	Research
SMILES	CC[C@H](C)[C@@H]([C@@H](CC(N1[C@@H](CCC1)[C@@H]([C@@H](C)C(N[C@H](C(O)=O)CC2=CC=CC=C2)=O)OC)=O)OC)N(C([C@@](C([2H])(C([2H])([2H])[2H])C([2H])([2H])[2H])([2H])NC([C@H](C(C)C)NC)=O)=O)C.Cl
For Use With (Application)	Cancer-programmed cell death
Percent Purity	98.97%
Solubility Information	DMSO : 100 mg/mL (128.79 mM; Need ultrasonic)
Purity Grade Notes	Research
Recommended Storage	4°C, sealed storage, away from moisture∣The compound is unstable in solutions, freshly prepared is recommended.
Shelf Life	4°C, sealed storage, away from moisture∣The compound is unstable in solutions, freshly prepared is recommended.
Molecular Formula	C₃₉H₅₈D₈ClN₅O₈
Formula Weight	776.47

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.

Pricing and Availability
Specifications

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

Isotope Standards

Isotope Standards

Lead 207 Isotope Standard for ICP/MS, SPEX CertiPrep™

Lead 206 Isotope Standard For ICP/MS, SPEX CertiPrep™

Boron 11 Isotope Standard For ICP/MS, 10μg/mL in H₂0, SPEX CertiPrep™

Eldecalcitol-d6, MedChemExpress

Doxercalciferol-d3, MedChemExpress

VD3-d6, MedChemExpress

Quetiapine-d4 fumarate, MedChemExpress

(±)-Levomepromazine-d6, MedChemExpress

1alpha, 25-Dihydroxy VD2-d6, MedChemExpress

Dabigatran-d4 hydrochloride, MedChemExpress

Alfacalcidol-d6, MedChemExpress

Banoxantrone-d12 dihydrochloride, MedChemExpress

Azilsartan-d5, MedChemExpress

MMAF-d8 hydrochloride, MedChemExpress

Sofosbuvir-d6, MedChemExpress

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