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

25–48 of 967 products

1-Bromo-3-chloropropane-13C3

CAS: 1173023-11-4
Formula: C₃H₆BrCl
MW: 160.41 g/mol

ZX-044745

1-Bromo-4-(methoxy-d3)benzene

CAS: 100835-59-4
Formula: C₇H₇BrO
MW: 190.05 g/mol

ZX-044169

1-Bromobutane-d3

CAS: 55724-42-0
Formula: C₄H₉Br
MW: 140.04 g/mol

ZX-043151

1-Bromobutane-d9

CAS: 98195-36-9
Formula: C₄H₉Br
MW: 146.07 g/mol

ZX-035873

1-Bromopentane-d11

CAS: 126840-21-9
Formula: C₅H₁₁Br
MW: 162.11 g/mol

ZX-042262

1-Bromopropane-3,3,3-D3

CAS: 61809-88-9
Formula: C₃H₇Br
MW: 126.01 g/mol

ZX-035864

1-Hydroxy Alprazolam-d5

CAS: 136765-24-7
Formula: C₁₇H₁₃ClN₄O
MW: 329.8 g/mol

ZX-045727

1-Methylnaphthalene-d10

CAS: 38072-94-5
Formula: C₁₁H₁₀
MW: 152.26 g/mol

ZX-042264

1-Methylpiperazine-d8

CAS: 917358-65-7
Formula: C₅H₁₂N₂
MW: 108.21 g/mol

ZX-040264

1-Naphthol-d7

CAS: 124251-84-9
Formula: C₁₀H₈O
MW: 151.21 g/mol

ZX-043256

1-Nitrosopyrrolidine-d4

CAS: 57371-40-1
Formula: C₄H₈N₂O
MW: 104.14 g/mol

ZX-043260

1-Propan-1,1,2,2,3,3,3-d7-ol

CAS: 102910-31-6
Formula: C₃H₈O
MW: 67.14 g/mol

ZX-035892

1-Propanol-d3

CAS: 61844-01-7
Formula: C₃H₈O
MW: 63.11 g/mol

ZX-042256

1-β-Hydroxy Vitamin D2

CAS: 127516-23-8
Formula: C₂₈H₄₄O₂
MW: 412.6 g/mol

ZX-029096

1,1,2,2-Tetrachloroethane-D2

CAS: 33685-54-0
Formula: C₂H₂Cl₄
MW: 169.9 g/mol

ZX-040746

1,1,2,2-Tetrachloroethane-d2 (TCE-d2), for spectroscopy, for NMR

CAS: 33685-54-0
Formula: C₂H₂Cl₄
MW: 169.9 g/mol

ZX-019325

1,2-Dibromoethane D4

CAS: 22581-63-1
Formula: C₂H₄Br₂
MW: 191.89 g/mol

ZX-043224

1,2-Dichlorobenzene-d4

CAS: 2199-69-1
Formula: C₆H₄Cl₂
MW: 151.02 g/mol

ZX-034956

1,2-Dichloroethane D4

CAS: 17060-07-0
Formula: C₂H₄Cl₂
MW: 102.98 g/mol

ZX-046791

1,2-Dichloropropane-D6

CAS: 93952-08-0
Formula: C₃H₆Cl₂
MW: 119.02 g/mol

ZX-040748

1,2-Phenylenediamine-d4

CAS: 291765-93-0
Formula: C₆H₈N₂
MW: 112.17 g/mol

ZX-035884

1,2-Propylene-d6 Carbonate

CAS: 202480-74-8
Formula: C₄H₆O₃
MW: 108.13 g/mol

ZX-043270

1,2,4-Trichlorobenzene-d3

CAS: 2199-72-6
Formula: C₆H₃Cl₃
MW: 184.5 g/mol

ZX-047011

1,3-Bis(4-Nitrophenyl) Urea-d8

CAS: 1156508-87-0
Formula: C₁₃H₁₀N₄O₅
MW: 310.29 g/mol

ZX-034568

Compare with other grades

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