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Isotope Standards

Compounds (solids, liquids, gasses) with well-defined isotopic compositions that act as the ultimate sources of accuracy in mass spectrometric measurements of isotope ratios.
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1 – 15 of 388 results
1

Boron 11 Isotope Standard For ICP/MS, 10μg/mL in H20, SPEX CertiPrep™
SDP

CAS: 7440-42-8 Molecular Formula: B Molecular Weight (g/mol): 10.81 MDL Number: MFCD00134034 MFCD00151272 InChI Key: ZOXJGFHDIHLPTG-UHFFFAOYSA-N PubChem CID: 5462311 ChEBI: CHEBI:27560 IUPAC Name: boron SMILES: [B]

PubChem CID 5462311
CAS 7440-42-8
Molecular Weight (g/mol) 10.81
ChEBI CHEBI:27560
MDL Number MFCD00134034 MFCD00151272
SMILES [B]
IUPAC Name boron
InChI Key ZOXJGFHDIHLPTG-UHFFFAOYSA-N
Molecular Formula B
2

Lithium 6 Isotope Standard For ICP/MS, SPEX CertiPrep™
SDP

CAS: 7439-93-2 Molecular Formula: Li Molecular Weight (g/mol): 6.94 MDL Number: MFCD00134051 InChI Key: WHXSMMKQMYFTQS-UHFFFAOYSA-N PubChem CID: 3028194 ChEBI: CHEBI:30145 IUPAC Name: lithium SMILES: [Li]

PubChem CID 3028194
CAS 7439-93-2
Molecular Weight (g/mol) 6.94
ChEBI CHEBI:30145
MDL Number MFCD00134051
SMILES [Li]
IUPAC Name lithium
InChI Key WHXSMMKQMYFTQS-UHFFFAOYSA-N
Molecular Formula Li
3

Lead 207 Isotope Standard for ICP/MS, SPEX CertiPrep™
SDP

4

Lead 206 Isotope Standard For ICP/MS, SPEX CertiPrep™
SDP

CAS: 7439-92-1 Molecular Formula: Pb Molecular Weight (g/mol): 207.20 MDL Number: MFCD00134050 InChI Key: WABPQHHGFIMREM-UHFFFAOYSA-N PubChem CID: 5352425 ChEBI: CHEBI:27889 IUPAC Name: lead SMILES: [Pb]

PubChem CID 5352425
CAS 7439-92-1
Molecular Weight (g/mol) 207.20
ChEBI CHEBI:27889
MDL Number MFCD00134050
SMILES [Pb]
IUPAC Name lead
InChI Key WABPQHHGFIMREM-UHFFFAOYSA-N
Molecular Formula Pb
5

WELLINGTON LABORATORIES LLC ISOTOPE PERFORMANCE STANDARD P
SDP

NC2588562 ISOTOPE PERFORMANCE STANDARD P

ENCOMPASS
6

Sigma Organic Chemistry SIGMA ORGANIC CHEMISTRY

NC4042888 EPINEPHRINE-D6 SOLUTION 1ML

ENCOMPASS_PREFERRED
7

Cambridge Isotope Laboratories Imidacloprid (pyridylmethyl-13C6 99%) 100 ug/mL in methanol 1 2 mL

Imidacloprid (pyridylmethyl-13C6 99%) 100 ug/mL in methanol 1 2 mL

ENCOMPASS
8

Medchemexpress LLC Citalopram-d6 | 1190003-26-9 | 98.9% | 1MG
SDP

Citalopram-d6 | 1190003-26-9 | 98.9% | 1MG

ENCOMPASS_PREFERRED
9

Cambridge Isotope Laboratories 11-DEOXYCORTISOL (2,2,4,6,6-D5, 98%) 100 UG/ML IN METHANOL, 1 ML, 1258063-56-7

11-DEOXYCORTISOL (2,2,4,6,6-D5, 98%) 100 UG/ML IN METHANOL, 1 ML, 1258063-56-7

ENCOMPASS
10

Cayman Chemical Cysteinyl Leukotriene Column
SDP

Cysteinyl Leukotriene Column

ENCOMPASS_PREFERRED
11

Medchemexpress LLC Hydroxyzine-d8 | 1189480-47-4 | 99.0% | 5 MG
SDP

Hydroxyzine-d8 is a deuterium-labeled version of Hydroxyzine, acting as a histamine H1-receptor antagonist. This compound is intended for research use only.

  • Can be used as a tracer
  • Can be used as an internal standard for quantitative analysis by methods such as NMR, GC-MS, or LC-MS

ENCOMPASS_PREFERRED
12

Medchemexpress LLC Moxifloxacin-d4 hydrochloride | C21H21D4ClFN3O4 | 1 MG
SDP

Moxifloxacin-d4 hydrochloride is the hydrochloride salt form of deuterium labeled Moxifloxacin. It is an orally active antimicrobial that can be used in the research of acute bacterial sinusitis, acute bacterial exacerbations of chronic bronchitis, and community-acquired pneumonia.

  • Can be used as a tracer
  • Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS

ENCOMPASS_PREFERRED
13

Cayman Chemical Leukotriene D4 methyl ester
SDP

A more lipid soluble formulation of LTD4

ENCOMPASS_PREFERRED
14

Cayman Chemical ImIdacloprId-d4 10mg
SDP

An internal standard for the quantification of imidacloprid by GC- or LC-MS

ENCOMPASS_PREFERRED
15

Sigma Aldrich Fine Chemicals Biosciences Phenol-d6 99 atom % D | 13127-88-3 | MFCD00002144 | 5G

Phenol-d6 99 atom % D | Purity: 99% (CP) | Mol Wt: 100.15 | 13127-88-3 | MFCD00002144 | 5G

ENCOMPASS