Why might a deuterated standard elute slightly earlier than the analyte?

Carbon-deuterium bonds are slightly shorter and less polarisable than carbon-hydrogen bonds, which can reduce retention in reversed-phase LC. The shift is usually small, but heavily deuterated standards may separate enough to experience different matrix effects.

When is carbon-13 labelling better than deuterium?

Carbon-13 and nitrogen-15 labels co-elute with the analyte and cannot exchange with solvent. They are preferred for demanding bioanalysis, although they are usually harder and more expensive to synthesise.

Can you make a labelled version of a compound that is not listed?

Often, yes. Our custom synthesis service can introduce deuterium or carbon-13 at chosen positions, subject to feasibility. Send the structure and the required mass shift with your enquiry.

Chemical grade

Deuterated and Stable-Isotope-Labelled Compounds chemicals

Compounds enriched in deuterium, carbon-13 or nitrogen-15 for LC-MS internal standards, NMR solvents and metabolic studies.

967 products in this grade

Deuterated and Stable-Isotope-Labelled Compounds products

481–504 of 967 products

Dimethyl sulphoxide-d6 99.9 atom % D, contains with 0.03% TMS

CAS: 2206-27-1
Formula: C₂H₆OS
MW: 84.17 g/mol

ZX-001861

Dimethyl sulphoxide-d6, for NMR spectroscopy, 99.8 atom %D

CAS: 2206-27-1
Formula: C₂H₆OS
MW: 84.17 g/mol

ZX-001862

Dimethyl terephthalate-2,3,5,6-d4

CAS: 74079-01-9
Formula: C₁₀H₁₀O₄
MW: 198.21 g/mol

ZX-046801

Dimethyl-d6 amine Hydrochloride

CAS: 53170-19-7
Formula: C₂H₈ClN
MW: 87.58 g/mol

ZX-029012

Dimetridazole-d3

CAS: 64678-69-9
Formula: C₅H₇N₃O₂
MW: 144.15 g/mol

ZX-033848

Diosmetin-d3

CAS: 1189728-54-8
Formula: C₁₆H₁₂O₆
MW: 303.28 g/mol

ZX-029016

Diphacinone-d4 (indanedione-4,5,6,7-d4)

CAS: 1219802-15-9
Formula: C₂₃H₁₆O₃
MW: 344.4 g/mol

ZX-046802

Diphenhydramine-d5 Hydrochloride

CAS: 1219795-16-0
Formula: C₁₇H₂₂ClNO
MW: 296.8 g/mol

ZX-029022

Dipyridamole-d20

CAS: 1189983-52-5
Formula: C₂₄H₄₀N₈O₄
MW: 524.7 g/mol

ZX-029025

Diuron-d6

CAS: 1007536-67-5
Formula: C₉H₁₀Cl₂N₂O
MW: 239.13 g/mol

ZX-029033

DL-1,4-Dithiothreitol-d10

CAS: 302912-05-6
Formula: C₄H₁₀O₂S₂
MW: 164.3 g/mol

ZX-046792

DL-Carnitine-d9 HCl (trimethyl-d9)

CAS: 1219386-75-0
Formula: C₇H₁₆ClNO₃
MW: 206.71 g/mol

ZX-043212

DL-Cystine-D4

CAS: 108641-83-4
Formula: C₆H₁₂N₂O₄S₂
MW: 244.3 g/mol

ZX-038786

DL-Homocystine-3,3,3`,3`,4,4,4`,4`-D8

CAS: 108641-82-3
Formula: C₈H₁₆N₂O₄S₂
MW: 276.4 g/mol

ZX-042269

DL-Malic Acid-2,3,3-d3

CAS: 104596-63-6
Formula: C₄H₆O₅
MW: 137.11 g/mol

ZX-035894

Dodecanedioic Acid-13C12

CAS: 1173019-20-9
Formula: C₁₂H₂₂O₄
MW: 242.21 g/mol

ZX-043233

Dofetilide-d4

CAS: 1189700-56-8
Formula: C₁₉H₂₇N₃O₅S₂
MW: 445.6 g/mol

ZX-029049

Domperidone-d6

CAS: 1329614-18-7
Formula: C₂₂H₂₄ClN₅O₂
MW: 431.9 g/mol

ZX-029065

Dopamine-d4 Hydrochloride

CAS: 203633-19-6
Formula: C₈H₁₂ClNO₂
MW: 193.66 g/mol

ZX-033340

Doxepin-d3 Hydrochloride

CAS: 347840-07-7
Formula: C₁₉H₂₂ClNO
MW: 318.9 g/mol

ZX-029094

Doxylamine-d5

CAS: 1173020-59-1
Formula: C₁₇H₂₂N₂O
MW: 275.4 g/mol

ZX-044136

Doxylamine-d5 Succinate

CAS: 1216840-94-6
Formula: C₂₁H₂₈N₂O₅
MW: 393.5 g/mol

ZX-029102

Drospirenone-d4

CAS: 2376035-94-6
Formula: C₂₄H₃₀O₃
MW: 370.5 g/mol

ZX-029115

Duloxetine-d3 Hydrochloride

CAS: 1435727-97-1
Formula: C₁₈H₂₀ClNOS
MW: 336.9 g/mol

ZX-039078

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