EPA Methods Standards

Environmental Protection Agency standards suitable for use as reference materials for assaying environmental sample conditions; includes standards for use in determining air, water, and soil quality.

946 – 960 of 1,049 results

946

Free Acids Analyte Mix, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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Specifications

Chemical Name or Material	Free Acids Analyte Mix

947

Methyl Esters, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

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948

Method 614 Kit, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

949

3,3'-Dichlorobenzidine Stock Standard, SPEX CertiPrep™

CAS: 91-94-1 Molecular Formula: C12H10Cl2N2 Molecular Weight (g/mol): 253.126 InChI Key: HUWXDEQWWKGHRV-UHFFFAOYSA-N PubChem CID: 7070 ChEBI: CHEBI:82315 IUPAC Name: 4-(4-amino-3-chlorophenyl)-2-chloroaniline SMILES: C1=CC(=C(C=C1C2=CC(=C(C=C2)N)Cl)Cl)N

Pricing & Availability
Specifications

PubChem CID	7070
CAS	91-94-1
Molecular Weight (g/mol)	253.126
ChEBI	CHEBI:82315
SMILES	C1=CC(=C(C=C1C2=CC(=C(C=C2)N)Cl)Cl)N
IUPAC Name	4-(4-amino-3-chlorophenyl)-2-chloroaniline
InChI Key	HUWXDEQWWKGHRV-UHFFFAOYSA-N
Molecular Formula	C12H10Cl2N2

950

Polynuclear Aromatic Hydrocarbons Mix B, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

951

Appendix IX Mix C, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

952

Diazinon-O-Analog, SPEX CertiPrep™

CAS: 962-58-3 Molecular Formula: C12H21N2O4P Molecular Weight (g/mol): 288.284 InChI Key: VBLJFQYCTRKKKF-UHFFFAOYSA-N PubChem CID: 13754 ChEBI: CHEBI:83533 IUPAC Name: diethyl (6-methyl-2-propan-2-ylpyrimidin-4-yl) phosphate SMILES: CCOP(=O)(OCC)OC1=NC(=NC(=C1)C)C(C)C

Pricing & Availability
Specifications

PubChem CID	13754
CAS	962-58-3
Molecular Weight (g/mol)	288.284
ChEBI	CHEBI:83533
SMILES	CCOP(=O)(OCC)OC1=NC(=NC(=C1)C)C(C)C
IUPAC Name	diethyl (6-methyl-2-propan-2-ylpyrimidin-4-yl) phosphate
InChI Key	VBLJFQYCTRKKKF-UHFFFAOYSA-N
Molecular Formula	C12H21N2O4P

953

Dibensyl Phthalate, SPEX CertiPrep™

CAS: 523-31-9 Molecular Formula: C22H18O4 Molecular Weight (g/mol): 346.382 InChI Key: UCVPKAZCQPRWAY-UHFFFAOYSA-N PubChem CID: 220773 IUPAC Name: dibenzyl benzene-1,2-dicarboxylate SMILES: C1=CC=C(C=C1)COC(=O)C2=CC=CC=C2C(=O)OCC3=CC=CC=C3

Pricing & Availability
Specifications

PubChem CID	220773
CAS	523-31-9
Molecular Weight (g/mol)	346.382
SMILES	C1=CC=C(C=C1)COC(=O)C2=CC=CC=C2C(=O)OCC3=CC=CC=C3
IUPAC Name	dibenzyl benzene-1,2-dicarboxylate
InChI Key	UCVPKAZCQPRWAY-UHFFFAOYSA-N
Molecular Formula	C22H18O4

954

1,2-Dichlorobenzene-d4, SPEX CertiPrep™

CAS: 2199-69-1 Molecular Formula: C6H4Cl2 Molecular Weight (g/mol): 151.02 MDL Number: MFCD00037106 InChI Key: RFFLAFLAYFXFSW-RHQRLBAQSA-N PubChem CID: 519913 IUPAC Name: 1,2-dichloro-3,4,5,6-tetradeuteriobenzene SMILES: [2H]C1=C([2H])C([2H])=C(Cl)C(Cl)=C1[2H]

Pricing & Availability
Specifications

PubChem CID	519913
CAS	2199-69-1
Molecular Weight (g/mol)	151.02
MDL Number	MFCD00037106
SMILES	[2H]C1=C([2H])C([2H])=C(Cl)C(Cl)=C1[2H]
IUPAC Name	1,2-dichloro-3,4,5,6-tetradeuteriobenzene
InChI Key	RFFLAFLAYFXFSW-RHQRLBAQSA-N
Molecular Formula	C6H4Cl2

955

1,4-Dichlorobutane, SPEX CertiPrep™

CAS: 110-56-5 Molecular Formula: C4H8Cl2 Molecular Weight (g/mol): 127.01 MDL Number: MFCD00001011 InChI Key: KJDRSWPQXHESDQ-UHFFFAOYSA-N PubChem CID: 8059 IUPAC Name: 1,4-dichlorobutane SMILES: ClCCCCCl

Pricing & Availability
Specifications

PubChem CID	8059
CAS	110-56-5
Molecular Weight (g/mol)	127.01
MDL Number	MFCD00001011
SMILES	ClCCCCCl
IUPAC Name	1,4-dichlorobutane
InChI Key	KJDRSWPQXHESDQ-UHFFFAOYSA-N
Molecular Formula	C4H8Cl2

956

State of Pennsylvania Polynuclear Aromatic Hydrocarbons Extractables Mix, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

957

Aroclor Mix 2, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

958

Mix F, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

959

Aroclor Mix 1, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Pricing & Availability

960

Dichloroacetonitrile, SPEX CertiPrep™

CAS: 3018-12-0 Molecular Formula: C2HCl2N Molecular Weight (g/mol): 109.937 InChI Key: STZZWJCGRKXEFF-UHFFFAOYSA-N PubChem CID: 18177 ChEBI: CHEBI:82444 IUPAC Name: 2,2-dichloroacetonitrile SMILES: C(#N)C(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	18177
CAS	3018-12-0
Molecular Weight (g/mol)	109.937
ChEBI	CHEBI:82444
SMILES	C(#N)C(Cl)Cl
IUPAC Name	2,2-dichloroacetonitrile
InChI Key	STZZWJCGRKXEFF-UHFFFAOYSA-N
Molecular Formula	C2HCl2N

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Free Acids Analyte Mix, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Methyl Esters, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Method 614 Kit, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

3,3'-Dichlorobenzidine Stock Standard, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Polynuclear Aromatic Hydrocarbons Mix B, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Appendix IX Mix C, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Diazinon-O-Analog, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Dibensyl Phthalate, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

1,2-Dichlorobenzene-d4, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

1,4-Dichlorobutane, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

State of Pennsylvania Polynuclear Aromatic Hydrocarbons Extractables Mix, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Aroclor Mix 2, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Mix F, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Aroclor Mix 1, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Dichloroacetonitrile, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Free Acids Analyte Mix, SPEX CertiPrep™

Methyl Esters, SPEX CertiPrep™

Method 614 Kit, SPEX CertiPrep™

3,3'-Dichlorobenzidine Stock Standard, SPEX CertiPrep™

Polynuclear Aromatic Hydrocarbons Mix B, SPEX CertiPrep™

Appendix IX Mix C, SPEX CertiPrep™

Diazinon-O-Analog, SPEX CertiPrep™

Dibensyl Phthalate, SPEX CertiPrep™

1,2-Dichlorobenzene-d4, SPEX CertiPrep™

1,4-Dichlorobutane, SPEX CertiPrep™

State of Pennsylvania Polynuclear Aromatic Hydrocarbons Extractables Mix, SPEX CertiPrep™

Aroclor Mix 2, SPEX CertiPrep™

Mix F, SPEX CertiPrep™

Aroclor Mix 1, SPEX CertiPrep™

Dichloroacetonitrile, SPEX CertiPrep™