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.

1 – 15 of 226 results

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

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]

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Specifications

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

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

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]

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Specifications

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

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

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

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]

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Specifications

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

WELLINGTON LABORATORIES LLC ISOTOPE PERFORMANCE STANDARD P

NC2588562 ISOTOPE PERFORMANCE STANDARD P

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21-DESACETYLDEFLAZAC 5MG

5000215426 21-DESACETYLDEFLAZAC 5MG

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5-HYDROXY-IMIDACLOPRID UNLABEL

5000166664 5-HYDROXY-IMIDACLOPRID UNLABEL

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ENTEGRIS INC GLYCOCHENODEOXYCHOLIC ACID-D4

NC2818526 GLYCOCHENODEOXYCHOLIC ACID-D4

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ENTEGRIS INC TAUROCHENODEOXYCHOLIC ACID-D4

NC2818522 TAUROCHENODEOXYCHOLIC ACID-D4

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Cayman Chemical ArachIdonIc AcId-d8 1mg

A bicyclic monoterpene with diverse biological activities inhibits IBV replication (IC50 0.98 mM) and exhibits a CC50 value of 10 mM in Vero cells active against several Gram-positive and Gram-negative bacteria as well as the plant pathogenic fungus F. culmorum and inhibits C. jejuni quorum sensing in vitro cytotoxic to HCT116 cells from 125-500 Ug/ml oral administration reduces the colonization of fluoroquinoline-sensitive but not fluoroquinoline-resistant C. jejuni in broiler chicken cecum