Impurity Reference Standards

Stable Isotope Labelled Standards (Deuterated, 13C, 15N)

Deuterated, 13C and 15N labelled APIs, metabolites and impurities for use as internal standards in LC-MS bioanalysis and trace testing.

976 productsCOA + SDS with every lot

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1,3-Dichloropropene D4(cis/trans mixture)

CAS: 202656-23-3
Formula: C₃H₄Cl₂
MW: 114.99 g/mol

ZX-035881

1,3-Difluorobenzene-d4

CAS: 1173022-08-6
Formula: C₆H₄F₂
MW: 118.12 g/mol

ZX-046794

1,3-Dihydroxybenzene-d6

CAS: 70938-00-0
Formula: C₆H₆O₂
MW: 116.15 g/mol

ZX-046795

1,3-Dinitrobenzene-d4

CAS: 54247-05-1
Formula: C₆H₄N₂O₄
MW: 172.13 g/mol

ZX-046796

1,4-Dibromobenzene-d4

CAS: 4165-56-4
Formula: C₆H₄Br₂
MW: 239.93 g/mol

ZX-046797

1,4-Dibromobutane D8

CAS: 68375-92-8
Formula: C₄H₈Br₂
MW: 223.96 g/mol

ZX-044031

1,4-Dichlorobenzene-d4

CAS: 3855-82-1
Formula: C₆H₄Cl₂
MW: 151.02 g/mol

ZX-042261

1,4-Dinitrosopiperazine-d8

CAS: 69340-07-4
Formula: C₄H₈N₄O₂
MW: 152.18 g/mol

ZX-035413

1,4-Dioxane-13C4

CAS: 1228182-37-3
Formula: C₄H₈O₂
MW: 92.08 g/mol

ZX-043232

1,4-Dioxane-D8

CAS: 17647-74-4
Formula: C₄H₈O₂
MW: 96.15 g/mol

ZX-042267

1,4-Phenylenediamine-d4

CAS: 119516-83-5
Formula: C₆H₈N₂
MW: 112.17 g/mol

ZX-043264

1,4-Xylene-d10

CAS: 41051-88-1
Formula: C₈H₁₀
MW: 116.23 g/mol

ZX-047016

1,5-Diaminonaphthalene-d6

CAS: 1346598-98-8
Formula: C₁₀H₁₀N₂
MW: 164.24 g/mol

ZX-043220

1'-Hydroxy Midazolam-13C3

CAS: 1189677-14-2
Formula: C₁₈H₁₃ClFN₃O
MW: 344.74 g/mol

ZX-036846

10,11-Dihydro-10-hydroxy Carbamazepine-d3

CAS: 1189917-36-9
Formula: C₁₅H₁₄N₂O₂
MW: 257.3 g/mol

ZX-043156

11-Deoxy Corticosterone-d8

CAS: 55487-63-3
Formula: C₂₁H₃₀O₃
MW: 338.5 g/mol

ZX-028933

17-Beta-Boldenone D3

CAS: 1224710-35-3
Formula: C₁₉H₂₆O₂
MW: 289.4 g/mol

ZX-044834

17-Beta-Estradiol-16,16,17d3

CAS: 79037-37-9
Formula: C₁₈H₂₄O₂
MW: 275.4 g/mol

ZX-033435

17-beta-Estradiol-2,4,16,16,17-d5

CAS: 221093-45-4
Formula: C₁₈H₂₄O₂
MW: 277.4 g/mol

ZX-044139

17-Desacetyl Norgestimate-d6 (Major)

CAS: 1263184-13-9
Formula: C₂₁H₂₉NO₂
MW: 333.5 g/mol

ZX-030907

17-epi-Testosterone-d3

CAS: 171199-96-5
Formula: C₁₉H₂₈O₂
MW: 291.4 g/mol

ZX-043191

1H-1,2,4-Triazole-3,5-13C2

CAS: 1773496-71-1
Formula: C₂H₃N₃
MW: 71.05 g/mol

ZX-044029

1H-1,2,4-Triazole-3,5-13C2-1,2,4-15N3

CAS: 1261170-82-4
Formula: C₂H₃N₃
MW: 74.03 g/mol

ZX-044028

2-Amino benzoicacid-d4

CAS: 60124-83-6
Formula: C₇H₇NO₂
MW: 141.16 g/mol

ZX-046688

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