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FirstStandard® Reference Materials

First Standard® is our trademark of high quality reference materials. We offer a comprehensive inventory of neat analytes, single component solutions, multi-component solutions, and stable isotope labeled compounds in a variety of fields to suite all your testing needs.

FirstStandard® Reference Materials

  • Catalog No: 1ST25001

    Emamectin benzoate

    CAS Number: 155569-91-8

    $50.00 - $50.00
    $50.00
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    $50.00
    In stock

    CAS Number: 155569-91-8Synonym: Emamectin benzoateFormula: C49H75NO13·C7H6O2Molecular Weight: 1008.24Purity: 98+%Form: SolidColor: Light yellowStor...

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    $50.00

  • Catalog No: 1ST160461

    Maleopimaricanhydride

    CAS Number: 510-39-4

    $500.00 - $500.00
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    CAS Number: 510-39-4Synonym: MaleopimaricanhydrideFormula: C24H32O5Molecular Weight: 400.51Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-...

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  • Catalog No: 1ST156847D5

    Posaconazole-d5

    $1,500.00 - $1,500.00
    $1,500.00
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    $1,500.00

    CAS Number: 1217785-83-5Synonym: Posaconazole-d5Formula: C37H37D5F2N8O4Molecular Weight: 705.81Purity: -Form: -Color: -Storage Condition: -Transpor...

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    $1,500.00
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  • Catalog No: 1ST157798D5

    Tenofovir alafenamide-d5 fumarate

    CAS Number: 379270-37-8 (Unlabelled free base)

    $235.00 - $235.00
    $235.00
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    $235.00

    CAS Number: 379270-37-8 (Unlabelled free base)Synonym: Tenofovir alafenamide-d5 fumarateFormula: C21H24D5N6O5P·C4H4O4Molecular Weight: 597.57Purity...

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    $235.00 - $235.00
    $235.00
    $235.00 - $235.00
    $235.00
    Online Inquiry

  • Catalog No: 1ST3415

    3-Benzylidenecamphor

    CAS Number: 15087-24-8

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    CAS Number: 15087-24-8Synonym: 3-BenzylidenecamphorFormula: C17H20OMolecular Weight: 240.34Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-...

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  • Catalog No: 1ST5526

    Dimetridazole-d3

    CAS Number: 64678-69-9

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    CAS Number: 64678-69-9Synonym: Dimetridazole-d3Formula: C5D3H4N3O2Molecular Weight: 144.15Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8...

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  • Catalog No: 1ST22141

    Terbuthylazine-d5 (ethyl-d5)

    CAS Number: 222986-60-9

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    CAS Number: 222986-60-9Synonym: Terbuthylazine-d5 (ethyl-d5)Formula: C9H11D5ClN5Molecular Weight: 234.74Purity: 98+%Form: SolidColor: WhiteStorage ...

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  • Catalog No: 1ST163392

    2-Hydroxyibuprofen

    CAS Number: 51146-55-5

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    CAS Number: 51146-55-5Synonym: 2-HydroxyibuprofenFormula: C13H18O3Molecular Weight: 222.28Purity: 98+%Form: SolidColor: WhiteStorage Condition: -20...

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  • Catalog No: 1ST1301

    Clenbuterol

    CAS Number: 37148-27-9

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    CAS Number: 37148-27-9Synonym: ClenbuterolFormula: C12H18Cl2N2OMolecular Weight: 277.19Purity: 98+%Form: PowderColor: WhiteStorage Condition: RTTra...

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  • Catalog No: 1ST162950D4

    Imipenem-d4

    CAS Number: 1261396-26-2

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    CAS Number: 1261396-26-2Synonym: Imipenem-d4Formula: C12H13D4N3O4SMolecular Weight: 303.37Purity: 98+%Form: SolidColor: Light YellowStorage Conditi...

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  • Catalog No: 1ST20189D6

    Phosmet-d6

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    CAS Number: 2083623-41-8Synonym: Phosmet-d6Formula: C11H6D6NO4PS2Molecular Weight: 323.36Purity: 98+%Form: SolidColor: WhiteStorage Condition: -Tr...

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  • Catalog No: 1ST20075

    Dimethoate-d6

    CAS Number: 1219794-81-6

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    CAS Number: 1219794-81-6Synonym: Dimethoate-d6Formula: C5H6D6NO3PS2Molecular Weight: 235.29Purity: 98+%Form: SolidColor: WhiteStorage Condition: -...

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  • Catalog No: 1ST20166

    Diazinon-d10

    CAS Number: 100155-47-3

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    CAS Number: 100155-47-3Synonym: Diazinon-d10Formula: C12D10H11N2O3PSMolecular Weight: 314.41Purity: 98+%Form: Oily LiquidColor: Light YellowStorage...

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    $460.00

  • Catalog No: 1ST20140D6

    Parathion-methyl-d6

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    CAS Number: 96740-32-8Synonym: Parathion-methyl-d6Formula: C8D6H4NO5PSMolecular Weight: 269.24Purity: 98+%Form: SolidColor: WhiteStorage Condition:...

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  • Catalog No: 1ST20093D6

    Methamidophos-d6

    CAS Number: 1219799-41-3

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    CAS Number: 1219799-41-3Synonym: Methamidophos-d6Formula: C2H2D6NO2PSMolecular Weight: 147.17Purity: 98+%Form: SolidColor: WhiteStorage Condition: ...

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  • Catalog No: 1ST20088

    Acephate-d6

    CAS Number: 2109699-73-0

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    CAS Number: 2109699-73-0Synonym: Acephate-d6Formula: C4H4D6NO3PSMolecular Weight: 189.2Purity: 98+%Form: SolidColor: WhiteStorage Condition: -Tran...

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  • Catalog No: 1ST1328D3

    Phenylethanolamine A-d3

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    In stock

    CAS Number: 1346746-81-3 (Unlabeled)Synonym: Phenylethanolamine A-d3Formula: C19H21D3N2O4Molecular Weight: 347.42Purity: 98+%Form: SolidColor: Whit...

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  • Catalog No: 1ST20066

    Fenthion-d6

    CAS Number: 1189662-83-6

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    CAS Number: 1189662-83-6Synonym: Fenthion-d6Formula: C10H9D6O3PS2Molecular Weight: 284.37Purity: 98+%Form: Oily LiquidColor: ColorlessStorage Condi...

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  • Catalog No: 1ST20100

    Chlorpyrifos-methyl-d6

    CAS Number: 2083629-84-7

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    CAS Number: 2083629-84-7Synonym: Chlorpyrifos-methyl-d6Formula: C7HD6Cl3NO3PSMolecular Weight: 328.57Purity: 98+%Form: SolidColor: Off-WhiteStorage...

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    $440.00
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  • Catalog No: 1ST20176

    Chlorpyrifos-d10

    CAS Number: 285138-81-0

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    CAS Number: 285138-81-0Synonym: Chlorpyrifos-d10Formula: C9HCl3D10NO3PSMolecular Weight: 360.65Purity: 98+%Form: SolidColor: WhiteStorage Condition...

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  • Catalog No: 1ST20168D6

    Malathion-d6

    CAS Number: 1189877-72-2

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    CAS Number: 1189877-72-2Synonym: Malathion-d6Formula: C10H13D6O6PS2Molecular Weight: 336.39Purity: 98+%Form: Oily LiquidColor: Pale YellowStorage C...

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  • Catalog No: 1ST5741

    Ofloxacin-d3

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    CAS Number: 1173147-91-5Synonym: Ofloxacin-d3Formula: C18H17D3FN3O4Molecular Weight: 364.39Purity: 98+%Form: SolidColor: Off-WhiteStorage Condition...

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  • Catalog No: 1ST20115D6

    Amidithion-d6

    CAS Number: 919-76-6 (Unlabeled)

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    CAS Number: 919-76-6 (Unlabeled)Synonym: Amidithion-d6Formula: C7H10D6NO4PS2Molecular Weight: 279.35Purity: 98+%Form: SolidColor: Off-WhiteStorage ...

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  • Catalog No: 1ST5757AD8

    Sarafloxacin-d8 hydrochloride

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    CAS Number: 1352879-52-7 (free base)Synonym: Sarafloxacin-d8 hydrochlorideFormula: C20H9D8F2N3O3 · HClMolecular Weight: 429.87Purity: 98+%Form: Sol...

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