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

193–216 of 967 products

Acedoben-d3

CAS: 57742-39-9
Formula: C₉H₉NO₃
MW: 182.19 g/mol

ZX-023138

Acenaphthene-d10

CAS: 15067-26-2
Formula: C₁₂H₁₀
MW: 164.27 g/mol

ZX-035866

Acenaphthylene D8

CAS: 93951-97-4
Formula: C₁₂H₈
MW: 160.24 g/mol

ZX-042253

Acepromazine-d6 Maleate

CAS: 1331655-50-5
Formula: C₂₃H₂₆N₂O₅S
MW: 448.6 g/mol

ZX-032976

Acetaldehyde-13C2

CAS: 1632-98-0
Formula: C₂H₄O
MW: 46.04 g/mol

ZX-043195

Acetamide-2,2,2-d3

CAS: 23724-60-9
Formula: C₂H₅NO
MW: 62.09 g/mol

ZX-046686

Acetamide-d5

CAS: 33675-83-1
Formula: C₂H₅NO
MW: 64.1 g/mol

ZX-032978

Acetaminophen D4

CAS: 64315-36-2
Formula: C₈H₉NO₂
MW: 155.19 g/mol

ZX-031737

Acetaminophen-d3

CAS: 60902-28-5
Formula: C₈H₉NO₂
MW: 154.18 g/mol

ZX-031729

Acetic Acid 13C2

CAS: 16651-47-1
Formula: C₂H₄O₂
MW: 62.04 g/mol

ZX-045813

Acetic acid-1-13C

CAS: 1563-79-7
Formula: C₂H₄O₂
MW: 61.05 g/mol

ZX-045812

Acetic Acid-13C2, D3

CAS: 107745-70-0
Formula: C₂H₄O₂
MW: 65.06 g/mol

ZX-045814

Acetic Acid-d3

CAS: 1112-02-3
Formula: C₂H₄O₂
MW: 63.07 g/mol

ZX-044374

Acetic Anhydride-13C4,d6

CAS: 285977-77-7
Formula: C₄H₆O₃
MW: 112.1 g/mol

ZX-042040

Acetic-1,2-13C2 acid, 2,2-dichloro-, sodium salt

CAS: 1173022-90-6
Formula: C₂HCl₂NaO₂
MW: 152.91 g/mol

ZX-042283

Acetic-d3 Acid-d

CAS: 1186-52-3
Formula: C₂H₄O₂
MW: 64.08 g/mol

ZX-018656

Acetone-d6

CAS: 666-52-4
Formula: C₃H₆O
MW: 64.12 g/mol

ZX-035856

Acetone-d6, for spectroscopy, for NMR

CAS: 666-52-4
Formula: C₃H₆O
MW: 64.12 g/mol

ZX-018810

Acetonitrile-D3, 99.8%

CAS: 2206-26-0
Formula: C₂H₃N
MW: 44.07 g/mol

ZX-001842

Acetonitrile-D3, for spectroscopy, for NMR

CAS: 2206-26-0
Formula: C₂H₃N
MW: 44.07 g/mol

ZX-037155

Acetophenone-d5

CAS: 28077-64-7
Formula: C₈H₈O
MW: 125.18 g/mol

ZX-043148

Acetophenone-d8

CAS: 19547-00-3
Formula: C₈H₈O
MW: 128.2 g/mol

ZX-032861

Acetyl-d3 Chloride

CAS: 19259-90-6
Formula: C₂H₃ClO
MW: 81.51 g/mol

ZX-035854

Acetyl-d3 L-Carnitine Hydrochloride

CAS: 362049-62-5
Formula: C₉H₁₈ClNO₄
MW: 242.71 g/mol

ZX-043584

Compare with other grades

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