EPA Methods Standards

Perkin Elmer US LLC Ketones for Method 8260B

We offer standard solutions to meet your environmental analysis requirements.

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eMolecules​ 1233526-43-6 | 3-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butanenitrile | ChemScene261.130 | C13H20BN3O2 | 95.000 | CC(CC#N)n1cc(cn1)B1OC(C)(C)C(C)(C)O1 | 100mg | 569144937

3-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butanenitrile | ChemScene | 1233526-43-6261.130 | C13H20BN3O2 | 95.000 | CC(CC#N)n1cc(cn1)B1OC(C)(C)C(C)(C)O1 | 100mg | 569144937

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eMolecules​ 161798-03-4 | Ethyl 2-(3-formyl-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate | Ambeed | MFCD13194811 | 347.430 | C18H21NO4S | 98.000 | CCOC(=O)c1sc(nc1C)-c1ccc(OCC(C)C)c(C=O)c1 | 100mg | 525089669

Ethyl 2-(3-formyl-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate | Ambeed | 161798-03-4 | MFCD13194811 | 347.430 | C18H21NO4S | 98.000 | CCOC(=O)c1sc(nc1C)-c1ccc(OCC(C)C)c(C=O)c1 | 100mg | 525089669

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Hach Company Xenosep EPA 1664A Standard, 1x30 mL, 4mg/mL

Xenosep EPA 1664A Standard, 1x30 mL, 4mg/mL. Pipet 10 mL to achieve the 40mg PAR (Precision and Recovery) Standard needed for the method. Each bottle contains enough standard to QC a batch of samples.

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Phenomenex Inc 2000 g/mL in Methanol

605 Benzidines Standard AL0-101501

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eMolecules​ 21860-07-1 | Ambeed | Methyl 3-acetylbenzoate | 1g | 552566017 | A133050 | MFCD09475799 | 178.187 | C10H10O3

Medchem Express | ZSTK474 | 10mg | 446271120 | HY-50847 | 475110-96-4 | MFCD08705334 | 417.421 | C19H21F2N7O2

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eMolecules​ 5814-37-9 | Ethyl 2,4-dioxo-4-(p-tolyl)butanoate | Ambeed | MFCD03411526 | 234.251 | C13H14O4 | 97.000 | CCOC(=O)C(=O)CC(=O)c1ccc(C)cc1 | 250mg | 521449801

Ethyl 2,4-dioxo-4-(p-tolyl)butanoate | Ambeed | 5814-37-9 | MFCD03411526 | 234.251 | C13H14O4 | 97.000 | CCOC(=O)C(=O)CC(=O)c1ccc(C)cc1 | 250mg | 521449801

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eMolecules​ 86541-74-4 | Benazepril HCl | Ambeed | MFCD00895734 | 460.960 | C24H29ClN2O5 | 98.000 | Cl.CCOC(=O)[C@H](CCc1ccccc1)N[C@H]1CCc2ccccc2N(CC(O)=O)C1=O | 50mg | 552729483

Benazepril HCl | Ambeed | 86541-74-4 | MFCD00895734 | 460.960 | C24H29ClN2O5 | 98.000 | Cl.CCOC(=O)[C@H](CCc1ccccc1)N[C@H]1CCc2ccccc2N(CC(O)=O)C1=O | 50mg | 552729483

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eMolecules​ 3939-01-3 | Methyl 1-Benzyl-4-oxo-3-piperidinecarboxylate HCl | Ambeed | MFCD00012799 | 283.750 | C14H18ClNO3 | 95.000 | Cl.COC(=O)C1CN(Cc2ccccc2)CCC1=O | 5g | 525022663

Methyl 1-Benzyl-4-oxo-3-piperidinecarboxylate HCl | Ambeed | 3939-01-3 | MFCD00012799 | 283.750 | C14H18ClNO3 | 95.000 | Cl.COC(=O)C1CN(Cc2ccccc2)CCC1=O | 5g | 525022663

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eMolecules​ 957034-76-3 | (4-((3-Methoxy-3-oxopropyl)carbamoyl)phenyl)boronic acid | Ambeed | MFCD09475830 | 251.050 | C11H14BNO5 | 97.000 | COC(=O)CCNC(=O)c1ccc(cc1)B(O)O | 250mg | 586039250

(4-((3-Methoxy-3-oxopropyl)carbamoyl)phenyl)boronic acid | Ambeed | 957034-76-3 | MFCD09475830 | 251.050 | C11H14BNO5 | 97.000 | COC(=O)CCNC(=O)c1ccc(cc1)B(O)O | 250mg | 586039250

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eMolecules​ 952402-79-8 | Ambeed | 6-Cyanopyridine-2-boronic Acid Pinacol Ester | 100mg | 589770527 | A181234 | MFCD07367522 | 230.07 | C12H15BN2O2

Ambeed | 6-Cyanopyridine-2-boronic Acid Pinacol Ester | 100mg | 589770527 | A181234 | 952402-79-8 | MFCD07367522 | 230.070 | C12H15BN2O2

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eMolecules​ 174543-74-9 | Methyl N-Cbz-3-piperidinecarboxylate | Ambeed | MFCD06795953 | 277.320 | C15H19NO4 | 98.000 | COC(=O)C1CCCN(C1)C(=O)OCc1ccccc1 | 5g | 600849758

Methyl N-Cbz-3-piperidinecarboxylate | Ambeed | 174543-74-9 | MFCD06795953 | 277.320 | C15H19NO4 | 98.000 | COC(=O)C1CCCN(C1)C(=O)OCc1ccccc1 | 5g | 600849758

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Medchemexpress LLC Wnt3a Surrogate Hum 5ug

Small and Specialty Supplier Partner
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Recombinant human Wnt3a surrogate protein (HEK293, Fc) is a water-soluble, Fc-fused Wnt agonist engineered to provide Fzd isoform-selective activation of canonical Wnt signaling. Expressed in HEK293 cells to preserve human-like post-translational modifications, the surrogate serves as a defined, consistent Wnt source for organoid culture, stem cell maintenance, and in vitro signaling assays.

• Water-soluble Fc-fused surrogate for simplified handling and solubility
• Fzd isoform-selective activation enables tissue-relevant Wnt signaling
• Expressed in HEK293 cells to support human-like post-translational modifications
• Supports organoid expansion and stem cell maintenance in culture
• Available in defined microgram quantities for assay flexibility
• Reduces variability compared with lipidated Wnt or conditioned media

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Crescent Chemical Co Inc EPA 525.1 FORTIF STD 4COMP 1ML

EPA Method 525.1 Fortification Solution, 4 Components Acenaphthene d10, Chrysene d12, Perylene d12, Phenanthrene d10 CAS Size - 1mL Catalog Number - CC2079

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eMolecules​ 7442-52-6 | Methyl 1-oxo-1,2,3,4-tetrahydronaphthalene-2-carboxylate | Ambeed | MFCD00667560 | 204.225 | C12H12O3 | 95.000 | COC(=O)C1CCc2ccccc2C1=O | 250mg | 525157255

Methyl 1-oxo-1,2,3,4-tetrahydronaphthalene-2-carboxylate | Ambeed | 7442-52-6 | MFCD00667560 | 204.225 | C12H12O3 | 95.000 | COC(=O)C1CCc2ccccc2C1=O | 250mg | 525157255

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