Environmental Testing Standards

Reference and calibration standards for environmental testing protocols; includes water, wastewater, EPA, TOC, DOD and other laboratory and environmental chemical standards.

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1,381 – 1,395 of 1,761 results

1,381

eMolecules 309740-49-6 | Methyl 1-methyl-4-nitro-1H-pyrazole-5-carboxylate | Ambeed | MFCD02110822 | 185.139 | C6H7N3O4 | 98.000 | COC(=O)c1c(cnn1C)[N+]([O-])=O | 250mg | 525206597

Methyl 1-methyl-4-nitro-1H-pyrazole-5-carboxylate | Ambeed | 309740-49-6 | MFCD02110822 | 185.139 | C6H7N3O4 | 98.000 | COC(=O)c1c(cnn1C)[N+]([O-])=O | 250mg | 525206597

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1,382

Crescent Chemical Co Inc EPA 608 PEST & PCB KIT 4X1ML

EPAMethod 608 Pesticides and PCBs Kit contains I mL each of CC2143R, CC2145, CC2146 and CC2148 CAS Size - 4 x 1 mL Catalog Number - CC2108KIT

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1,383

eMolecules 1806680-93-2 | Ambeed | Methyl 3-(3-(difluoromethyl)-1-methyl-1H-pyrazol-4-yl)-3-oxopropanoate | 100mg | 600842187 | A515869 | MFCD28101778 | 232.187 | C9H10F2N2O3

Ambeed | (R)-4-Benzyl-2-(pyrimidin-2-yl)-45-dihydrooxazole | 100mg | 633660520 | A1353092 | 2757082-84-9 | 239.278 | C14H13N3O

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1,384

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

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

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1,385

Crescent Chemical Co Inc Ethoxyquin, 91-53-2, MFCD00023883, 1mL

Molecular Formula C14H19NO, Molecular Weight 217.310, Single Component Calibration Standard in Methanol

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1,386

Medchemexpress LLC Permethrin-d5 | 1794760-19-2 | 99.2% | 1 MG

Permethrin-d5 (NRDC-143-d5) is the deuterium labeled Permethrin. Permethrin (NRDC-143) is an insecticide, acaricide, and insect repellent; it functions as a neurotoxin by affecting neuron membranes and prolonging sodium channel activation. It is for research use only.

Can be used as a tracer.
Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Stable heavy isotopes are incorporated into drug molecules for quantitation during the drug development process.
Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.