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

937–960 of 967 products

Tributyltin Chloride-d27

CAS: 1257647-76-9
Formula: C₁₂H₂₇ClSn
MW: 352.67 g/mol

ZX-040234

Trichloroacetic acid-2-13C

CAS: 32479-99-5
Formula: C₂HCl₃O₂
MW: 164.38 g/mol

ZX-042285

Triethyl Phosphate-d15

CAS: 135942-11-9
Formula: C₆H₁₅O₄P
MW: 197.25 g/mol

ZX-042291

Trihydro(tetrahydrofuran)boron-d3

CAS: 96220-57-4
Formula: C₄H₁₁BO
MW: 88.96 g/mol

ZX-046027

Trimethoprim-d9

CAS: 1189460-62-5
Formula: C₁₄H₁₈N₄O₃
MW: 299.37 g/mol

ZX-036335

Trimethylamine D9 Hydrochloride

CAS: 18856-86-5
Formula: C₃H₁₀ClN
MW: 104.63 g/mol

ZX-043280

Trimethylamine-D9 N-Oxide

CAS: 1161070-49-0
Formula: C₃H₉NO
MW: 84.16 g/mol

ZX-042631

Trimipramine-D3 Major Maleate Salt

CAS: 1185245-93-5
Formula: C₂₄H₃₀N₂O₄
MW: 413.5 g/mol

ZX-036338

Triphenyl Phosphate-d15

CAS: 1173020-30-8
Formula: C₁₈H₁₅O₄P
MW: 341.4 g/mol

ZX-036341

Tulobuterol-d9 Hydrochloride

CAS: 1325559-14-5
Formula: C₁₂H₁₉Cl₂NO
MW: 273.24 g/mol

ZX-036347

Ursodeoxycholic Acid-d4

CAS: 347841-46-7
Formula: C₂₄H₄₀O₄
MW: 396.6 g/mol

ZX-036359

Valproic Acid-d6

CAS: 87745-18-4
Formula: C₈H₁₆O₂
MW: 150.25 g/mol

ZX-036367

Valsartan-d3

CAS: 1331908-02-1
Formula: C₂₄H₂₉N₅O₃
MW: 438.5 g/mol

ZX-036369

Valsartan-d9

CAS: 1089736-73-1
Formula: C₂₄H₂₉N₅O₃
MW: 444.6 g/mol

ZX-032738

Vedaprofen-d3

CAS: 1185054-34-5
Formula: C₁₉H₂₂O₂
MW: 285.4 g/mol

ZX-043193

Venlafaxine D6

CAS: 940297-06-3
Formula: C₁₇H₂₇NO₂
MW: 283.44 g/mol

ZX-036875

Venlafaxine-d6 Hydrochloride

CAS: 1062606-12-5
Formula: C₁₇H₂₇NO₂
MW: 283.44 g/mol

ZX-036377

Veratric acid-d6

CAS: 1162658-12-9
Formula: C₉H₁₀O₄
MW: 188.21 g/mol

ZX-030468

Vitamin D3 Decanoate

CAS: 158180-04-2
Formula: C₃₇H₆₂O₂
MW: 538.9 g/mol

ZX-023926

Vitamin D3 Octanoate

CAS: 927822-16-0
Formula: C₃₅H₅₈O₂
MW: 510.8 g/mol

ZX-028585

Vitamin D3-d3

CAS: 80666-48-4
Formula: C₂₇H₄₄O
MW: 387.7 g/mol

ZX-045437

Vitamin D3-d7

CAS: 1627523-19-6
Formula: C₂₇H₄₄O
MW: 391.7 g/mol

ZX-038945

Vitamin D4

CAS: 511-28-4
Formula: C₂₈H₄₆O
MW: 398.7 g/mol

ZX-024539

Vitamin K3 D8

CAS: 478171-80-1
Formula: C₁₁H₈O₂
MW: 180.23 g/mol

ZX-043282

Compare with other grades

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