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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: 1ST21189D

    Difenoconazole-alcohol

    CAS Number: 117018-19-6

    $60.00 - $60.00
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    CAS Number: 117018-19-6Synonym: Difenoconazole-alcoholFormula: C16H13Cl2N3O2Molecular Weight: 350.2Purity: 98+%Form: SolidColor: YellowStorage Cond...

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  • Catalog No: 1ST15571

    Xylazoline

    CAS Number: 25332-05-2

    $400.00 - $400.00
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    CAS Number: 25332-05-2Synonym: XylazolineFormula: C11H14N2SMolecular Weight: 206.31Purity: 98+%Form: SolidColor: WhiteStorage Condition: RTTranspor...

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  • Catalog No: 1ST20259

    3-Hydroxycarbofuran

    CAS Number: 16655-82-6

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    CAS Number: 16655-82-6Synonym: 3-HydroxycarbofuranFormula: C12H15NO4Molecular Weight: 237.25Purity: 98+%Form: SolidColor: WhiteStorage Condition: -...

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  • Catalog No: 1ST5740

    Ofloxacin

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    $90.00
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    $90.00
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    CAS Number: 82419-36-1Synonym: OfloxacinFormula: C18H20FN3O4Molecular Weight: 361.37Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8°CTran...

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    $90.00 - $90.00
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  • Catalog No: 1ST20480

    Demeton-S-sulfoxide

    CAS Number: 2496-92-6

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    CAS Number: 2496-92-6Synonym: Demeton-S-sulfoxideFormula: C8H19O4PS2Molecular Weight: 274.34Purity: 98+%Form: Oily liquidColor: Light yellowStorage...

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  • Catalog No: 1ST20352

    Clothianidin-d3 (N'-methyl-d3)

    CAS Number: 1262776-24-8

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    CAS Number: 1262776-24-8Synonym: Clothianidin-d3 (N'-methyl-d3)Formula: C6D3H5ClN5O2SMolecular Weight: 252.7Purity: 98+%Form: SolidColor: White to ...

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  • Catalog No: 1ST20265

    Methiocarb sulfoxide

    CAS Number: 2635-10-1

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    CAS Number: 2635-10-1Synonym: Methiocarb sulfoxideFormula: C11H15NO3SMolecular Weight: 241.31Purity: 98+%Form: SolidColor: WhiteStorage Condition: ...

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  • Catalog No: 1ST157102

    2,4-D isooctyl ester

    CAS Number: 3035-67-4

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    CAS Number: 3035-67-4Synonym: 2,4-D isooctyl esterFormula: C16H22Cl2O3Molecular Weight: 333.25Purity: 97+%Form: Oily liquidColor: ColorlessStorage ...

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  • Catalog No: 1ST20662

    Demeton-S-sulfone

    CAS Number: 2496-91-5

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    CAS Number: 2496-91-5Synonym: Demeton-S-sulfoneFormula: C8H19O5PS2Molecular Weight: 290.34Purity: 98+%Form: Oily liquidColor: ColorlessStorage Cond...

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  • Catalog No: 1ST22684

    Aramite

    CAS Number: 140-57-8

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    CAS Number: 140-57-8Synonym: AramiteFormula: C15H23ClO4SMolecular Weight: 334.86Purity: 0.96Form: Oily liquidColor: ColorlessStorage Condition: -20...

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  • Catalog No: 1ST20124

    Phorate

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    CAS Number: 298-02-2Synonym: PhorateFormula: C7H17O2PS3Molecular Weight: 260.38Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8°CTransport...

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  • Catalog No: 1ST21297

    Propamocarb hydrochloride

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    CAS Number: 25606-41-1Synonym: Propamocarb hydrochlorideFormula: C9H20N2O2·HClMolecular Weight: 224.73Purity: 96+%Form: Oily LiquidColor: YellowSto...

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  • Catalog No: 1ST20167D3

    Omethoate-d3

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    CAS Number: 1189510-77-7Synonym: Omethoate-d3Formula: C5H9D3NO4PSMolecular Weight: 216.21Purity: 97+%Form: Oily LiquidColor: ColorlessStorage Condi...

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  • Catalog No: 1ST20123

    Phorate sulfone

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    CAS Number: 2588-04-7Synonym: Phorate sulfoneFormula: C7H17O4PS3Molecular Weight: 292.38Purity: 98+%Form: Oily LiquidColor: Pale YellowStorage Cond...

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  • Catalog No: 1ST4107D5

    Enrofloxacine-d5

    CAS Number: 1173021-92-5

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    CAS Number: 1173021-92-5Synonym: Enrofloxacine-d5Formula: C19H17D5FN3O3Molecular Weight: 364.43Purity: 98+%Form: SolidColor: Off-WhiteStorage Condi...

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  • Catalog No: 1ST8404

    Fluorescent brightener 90

    CAS Number: 3426-43-5

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    CAS Number: 3426-43-5Synonym: Fluorescent brightener 90Formula: C34H30N10O8S2 . 2NaMolecular Weight: 816.78Purity: 98+%Form: SolidColor: Pale Yello...

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  • Catalog No: 1ST2217

    Dienestrol

    CAS Number: 84-17-3

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    CAS Number: 84-17-3Synonym: DienestrolFormula: C18H18O2Molecular Weight: 266.33Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8°CTransport...

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  • Catalog No: 1ST20065

    Fenthion

    CAS Number: 55-38-9

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    CAS Number: 55-38-9Synonym: FenthionFormula: C10H15O3PS2Molecular Weight: 278.33Purity: 98+%Form: Oily liquidColor: ColorlessStorage Condition: 2-8...

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  • Catalog No: 1ST4040

    Sulfamonomethoxine

    CAS Number: 1220-83-3

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    CAS Number: 1220-83-3Synonym: SulfamonomethoxineFormula: C11H12N4O3SMolecular Weight: 280.3Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-...

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  • Catalog No: 1ST21164

    Iprodione

    CAS Number: 36734-19-7

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    CAS Number: 36734-19-7Synonym: IprodioneFormula: C13H13Cl2N3O3Molecular Weight: 330.17Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8°CTr...

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  • Catalog No: 1ST1318

    Clenproperol

    CAS Number: 38339-11-6

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    CAS Number: 38339-11-6Synonym: ClenproperolFormula: C11H16Cl2N2OMolecular Weight: 263.16Purity: 98+%Form: SolidColor: WhiteStorage Condition: 2-8°C...

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  • Catalog No: 1ST20170

    Phoxim

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    CAS Number: 14816-18-3Synonym: PhoximFormula: C12H15N2O3PSMolecular Weight: 298.3Purity: 98+%Form: Oily liquidColor: Light yellowStorage Condition:...

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  • Catalog No: 1ST21171

    Propiconazole

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    CAS Number: 60207-90-1Synonym: PropiconazoleFormula: C15H17Cl2N3O2Molecular Weight: 342.22Purity: 98+%Form: Oily liquidColor: YellowStorage Conditi...

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  • Catalog No: 1ST25000

    Abamectin

    CAS Number: 71751-41-2

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    CAS Number: 71751-41-2Synonym: (1'R,2R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-2-Butan-2-yl-21',24'-dihydroxy-12'-[(4S,6S)-5-[(2S,4S...

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