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Environmental Testing Standards

Reference and calibration standards for environmental testing protocols; includes water, wastewater, EPA, TOC, DOD and other laboratory and environmental chemical standards.
EPA Methods Standards (1,047)
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Carbon Oxygen Demand Standards (81)
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Keyword Search:
1,051 – 1,065 of 1,759 results
1,051

Crescent Chemical Co Inc PARATHION-ETHYL SOLN 1ML
SDP

Parathion-ethyl Single Component Calibration Standard in Methanol CAS 56-38-2 Size - 1mL Catalog Number - 7889M.10

ENCOMPASS_PREFERRED
1,052

Medchemexpress LLC WNT3A SURROGATE HUM 50UG
SDP

5000184668 WNT3A SURROGATE HUM 50UG

ENCOMPASS_PREFERRED
1,053

Medchemexpress LLC WNT3A SURROGATE HUM 50UG
SDP

5000184805 WNT3A SURROGATE HUM 50UG

ENCOMPASS_PREFERRED
1,054

eMolecules​ 850567-60-1 | Ambeed | Ethyl 2-(132-dioxaborinan-2-yl)benzoate | 250mg | 665579102 | A697409 | MFCD06659932 | 234.06 | C12H15BO4

Ambeed | Ethyl 2-(132-dioxaborinan-2-yl)benzoate | 250mg | 665579102 | A697409 | 850567-60-1 | MFCD06659932 | 234.060 | C12H15BO4

ENCOMPASS_PREFERRED
1,055

Crescent Chemical Co Inc PYRACLOSTROBIN 100 MG
SDP

Pyraclostrobin Fungicide (WS) CAS 175013-18-0 Molecular Weight - 387.8169 Storage - RT Catalog Num - DRE-C16595000 pesticide

ENCOMPASS_PREFERRED
1,056

Crescent Chemical Co Inc Fluridone, 59756-60-4, MFCD00078682, 1mL
SDP

Molecular Formula C19H14F3NO, Molecular Weight 329.320, Single Component Calibration Standard in Methanol

ENCOMPASS_PREFERRED
1,057

eMolecules​ 101623-68-1 | 1-(((4-NITROPHENOXY)CARBONYL)OXY)ETHYL ACETATE | AstaTech | MFCD27940873 | 269.209 | C11H11NO7 | 98.000 | CC(OC(C)=O)OC(=O)Oc1ccc(cc1)[N+]([O-])=O | 0.1g | 704975652

1-(((4-NITROPHENOXY)CARBONYL)OXY)ETHYL ACETATE | AstaTech | 101623-68-1 | MFCD27940873 | 269.209 | C11H11NO7 | 98.000 | CC(OC(C)=O)OC(=O)Oc1ccc(cc1)[N+]([O-])=O | 0.1g | 704975652

ENCOMPASS_PREFERRED
1,058

eMolecules​ Ambeed / Ethyl 1H-imidazole-4-carboxylate / 250mg / 525153555 / A250609 / / 23785-21-9 / MFCD02646639 / 140.142 / C6H8N2O2

Ambeed / Ethyl 1H-imidazole-4-carboxylate / 250mg / 525153555 / A250609 / / 23785-21-9 / MFCD02646639 / 140.142 / C6H8N2O2

ENCOMPASS_PREFERRED
1,059

Crescent Chemical Co Inc ACROLEIN-2,4-DINITROPHENY 25MG
SDP

Acrolein-2,4-dinitrophenylhydrazone (DNPH) Hydrocarb./petrochem. (Metabolite) CAS 888-54-0 Molecular Weight - 236.1842 Storage - -18°C Catalog Num - DRE-CA10045200 chemical

ENCOMPASS_PREFERRED
1,060

Crescent Chemical Co Inc EPA 600 INTERNAL STD 6COMP 1ML
SDP

CLP Semivolatile Priority Pollutant Standards - Internal Standards Mix, 6 Components Acenaphthene-d10, Chrysene-d12, 1,4-Dichlorobenzene-d4, Naphthalene-d8, Perylene-d12, Phenanthrene-d 10 CAS Size - 1mL Catalog Number - CC2418

ENCOMPASS_PREFERRED
1,061

Crescent Chemical Co Inc Paraquat Dichloride, 1910-42-5, MFCD00011986, 100mg
SDP

Molecular Formula C12H14N2.2Cl, Molecular Weight 257.163, Herbicide (WS)

ENCOMPASS_PREFERRED
1,062

Chem Service Inc AROCHLOR 1260 SOLUTION 1 ML
SDP

This item has a minimum order quantity of 3 per supplier requirements
Arochlor 1260 Solution, 1000ug/ml in Hexane,CAS Number: 11096-82-5, Size: 1mL Ampule

ENCOMPASS_PREFERRED
1,063

eMolecules​ 2632895-95-3 | Ethyl 2-nitro-6-(2H-1,2,3-triazol-2-yl)benzoate | ChemScene262.225 | C11H10N4O4 | 95.000 | CCOC(=O)c1c(cccc1[N+]([O-])=O)-n1nccn1 | 25mg | 714102645

Ethyl 2-nitro-6-(2H-1,2,3-triazol-2-yl)benzoate | ChemScene | 2632895-95-3262.225 | C11H10N4O4 | 95.000 | CCOC(=O)c1c(cccc1[N+]([O-])=O)-n1nccn1 | 25mg | 714102645

ENCOMPASS_PREFERRED
1,064

Crescent Chemical Co Inc Permethrin, 52645-53-1, MFCD00041809, 250mg
SDP

Molecular Formula C21H20Cl2O3, Molecular Weight 391.292, Insecticide (WS)

ENCOMPASS_PREFERRED
1,065

Medchemexpress LLC Wnt3a Surrogate Hum 50ug
SDP

Wnt3a Surrogate Protein, Human (HEK293, C-hFc) is a recombinant, Fc-tagged surrogate of human Wnt3a produced in HEK293 cells. Supplied lyophilized, it serves as a water-soluble, Frizzled-specific Wnt agonist for in vitro research to activate Wnt signaling pathways.

  • Expressed in HEK293 cells with a C-terminal human Fc tag.
  • Supplied lyophilized from PBS (pH 7.4) with 8% trehalose.
  • Purity greater than 95% by Tris-Bis PAGE.
  • Predicted molecular mass 58.5 kDa; appears ~60-75 kDa on SDS-PAGE.
  • Recommended reconstitution concentration of at least 100 μg/mL in ddH2O.
  • Store at -20°C; aliquot and freeze at -20°C or -80°C for extended storage.
  • For research use only.

ENCOMPASS_PREFERRED