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Isotope Standards

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 190 results
1

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

CAS: 7732-18-5,7440-42-8,14797-71-8 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 7732-18-5,7440-42-8,14797-71-8
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: 7697-37-2,7732-18-5,7439-93-2 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 7697-37-2,7732-18-5,7439-93-2
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: 7697-37-2 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 7697-37-2
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

*LGC STANDARDS USA TRICLOSAN-D3

NC1833111 TRICLOSAN-D3

ENCOMPASS
6

*LGC STANDARDS USA METOLACHLOR-D6

NC1833109 METOLACHLOR-D6

ENCOMPASS
7

*LGC STANDARDS USA METHOMYL-D3

NC1833108 METHOMYL-D3

ENCOMPASS
8

MEDCHEMEXPRESS LLC NITAZOXANIDE D4 1MG

50-193-2909 NITAZOXANIDE D4 1MG

ENCOMPASS_PREFERRED
9

MEDCHEMEXPRESS LLC TETRABENAZINE D6 1MG

50-193-2923 TETRABENAZINE D6 1MG

ENCOMPASS_PREFERRED
10

MEDCHEMEXPRESS LLC VD3-D6 5MG

50-187-3194 VD3-D6 5MG

ENCOMPASS_PREFERRED
11

MEDICAL ISOTOPES INC D6-2.25-DIH VITAMIN D3 1ML

NC2242471 D6-2.25-DIH VITAMIN D3 1ML

ENCOMPASS
12

MEDICAL ISOTOPES INC D6-1.25-DIH VITAMIN D 1ML

NC2242472 D6-1.25-DIH VITAMIN D 1ML

ENCOMPASS
13

Sigma Aldrich Fine Chemicals Biosciences Benzidine-(rings-d8) 98 atom % D | 92890-63-6 | MFCD00143662 | 100MG

Benzidine-(rings-d8) 98 atom % D | Purity: 99% (CP) | Mol Wt: 192.29 | 92890-63-6 | MFCD00143662 | 100MG

ENCOMPASS
14

Sigma Aldrich Fine Chemicals Biosciences Enalaprilat United States Pharmacopeia (USP) Reference Standard | 84680-54-6 | MFCD00941393 | 300MG

Enalaprilat United States Pharmacopeia (USP) Reference Standard | Mol Wt: 384.42 | 84680-54-6 | MFCD00941393 | 300MG

ENCOMPASS
15

Sigma Aldrich Fine Chemicals Biosciences Praziquantel Related Compound B United States Pharmacopeia (USP) Reference Standard | 125273-86-1 | 50MG

Praziquantel Related Compound B United States Pharmacopeia (USP) Reference Standard | Mol Wt: 310.39 | 125273-86-1 | 50MG

ENCOMPASS