EPA Methods Standards

eMolecules​ AstaTech / 1-(((4-NITROPHENOXY)CARBONYL)OXY)ETHYL ACETATE / 0.1g / 704975652 / D74376 / 98.000 / 101623-68-1 / MFCD27940873 / 269.209 / C11H11NO7

AstaTech / 1-(((4-NITROPHENOXY)CARBONYL)OXY)ETHYL ACETATE / 0.1g / 704975652 / D74376 / 98.000 / 101623-68-1 / MFCD27940873 / 269.209 / C11H11NO7

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Crescent Chemical Co Inc Methylarsonic Acid Mono Sodium Salt Sesquihydrat, 2163-80-6, MFCD00072437, 100mg

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Molecular Formula CH4AsO3.Na, Molecular Weight 161.952, Herbicide (WS)

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Crescent Chemical Co Inc Difethialone 10 µg/mL in Acetonitrile, 104653-34-1, MFCD01663605, 10mL

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Molecular Formula C31H23BrO2S, Molecular Weight 539.491, Pesticide other (WS solution)

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eMolecules​ Medchem Express / Silvestrol / 1mg / 446262559 / HY-13251 / / 697235-38-4 / MFCD22417097 / 654.665 / C34H38O13

Medchem Express / Silvestrol / 1mg / 446262559 / HY-13251 / / 697235-38-4 / MFCD22417097 / 654.665 / C34H38O13

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eMolecules​ Ambeed / Ethyl 2-(methylthio)-6-oxo-16-dihydropyrimidine-5-carboxylate / 5g / 525043806 / A136541 / / 53554-29-3 / MFCD00194960 / 214.240 / C8H10N2O3S

Ambeed / Ethyl 2-(methylthio)-6-oxo-16-dihydropyrimidine-5-carboxylate / 5g / 525043806 / A136541 / / 53554-29-3 / MFCD00194960 / 214.240 / C8H10N2O3S

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Crescent Chemical Co Inc CHLORPYRIFOS SOLN 10 ML

Chlorpyrifos 10 µg/mL in Acetonitrile Insecticide (WS solution) CAS 2921-88-2 Molecular Weight - 350.5863 Storage - RT Catalog Num - DRE-L11600000AL pesticide

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eMolecules​ Ambeed / Methyl 345-tris(benzyloxy)benzoate / 250mg / 521431282 / A268071 / / 70424-94-1 / MFCD03425302 / 454.522 / C29H26O5

Ambeed / Methyl 345-tris(benzyloxy)benzoate / 250mg / 521431282 / A268071 / / 70424-94-1 / MFCD03425302 / 454.522 / C29H26O5

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Crescent Chemical Co Inc PRODIAMINE 100 MG

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Prodiamine Herbicide (WS) CAS 29091-21-2 Molecular Weight - 350.2937 Storage - RT Catalog Num - DRE-C16320000 pesticide

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Cambridge Isotope Laboratories STD FOR EPA METHOD 8280

NC2980739 STD FOR EPA METHOD 8280

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eMolecules​ Medchem Express / Metalaxyl / 50mg / 719836284 / HY-B0843 / / 57837-19-1 / MFCD00055447 / 279.336 / C15H21NO4

Medchem Express / Metalaxyl / 50mg / 719836284 / HY-B0843 / / 57837-19-1 / MFCD00055447 / 279.336 / C15H21NO4

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Crescent Chemical Co Inc FLUCLOXACILLIN SODIUM 250 MG

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Flucloxacillin sodium Pharma./veter. comp. (WS) CAS 1847-24-1 Molecular Weight - 475.8536 Storage - RT Catalog Num - DRE-C13696000 chemical

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eMolecules​ Ambeed / tert-Butyl 4-(4-(ethoxycarbonyl)phenoxy)piperidine-1-carboxylate / 100mg / 552587137 / A148859 / / 210962-44-0 / MFCD13184258 / 349.427 / C19H27NO5

Ambeed / tert-Butyl 4-(4-(ethoxycarbonyl)phenoxy)piperidine-1-carboxylate / 100mg / 552587137 / A148859 / / 210962-44-0 / MFCD13184258 / 349.427 / C19H27NO5

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Crescent Chemical Co Inc IMIDACLOPRID D4 SOLN 1ML

Imidacloprid D4 (imidazolidin-4,4,5,5 D4) 100 ng/µl in Acetone Insecticide (Isotop solution) CAS 1015855-75-0 Molecular Weight - 259.6856 Storage - RT Catalog Num - DRE-XA14283710AC pesticide

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Medchemexpress LLC Tofacitinib metabolite-1 | 1640971-51-2 | 99.6% | C16H20N6O2 | 10MG

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Tofacitinib metabolite-1 is the primary human metabolite of the JAK inhibitor tofacitinib. This small-molecule reference standard is supplied as a light-yellow solid at high purity for use in pharmacokinetic, metabolism, and LC-MS analytical method development.

• CAS number: 1640971-51-2
• Molecular formula: C16H20N6O2
• Molecular weight: 328.37 g/mol
• High purity, approximately 99.6%
• Appearance: light yellow to yellow solid
• Soluble in DMSO; recommended 100 mg/mL with ultrasonic assistance
• Suitable for pharmacokinetic, metabolism, and analytical reference studies
• Storage: protect from light; solids at 4°C; solutions long-term at -80°C

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Crescent Chemical Co Inc DIOXATHION SOLN 1ML

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Dioxathion Single Component Calibration Standard in Hexane CAS 78-34-2 Size - 1mL Catalog Number - 7443H.10

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