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.

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991 – 1,005 of 1,030 results

991

Picloram Methyl Ester, SPEX CertiPrep™

CAS: 14143-55-6 Molecular Formula: C7H5Cl3N2O2 Molecular Weight (g/mol): 255.479 InChI Key: RJQUHEYNLDNJLN-UHFFFAOYSA-N PubChem CID: 84224 IUPAC Name: methyl 4-amino-3,5,6-trichloropyridine-2-carboxylate SMILES: COC(=O)C1=NC(=C(C(=C1Cl)N)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	84224
CAS	14143-55-6
Molecular Weight (g/mol)	255.479
SMILES	COC(=O)C1=NC(=C(C(=C1Cl)N)Cl)Cl
IUPAC Name	methyl 4-amino-3,5,6-trichloropyridine-2-carboxylate
InChI Key	RJQUHEYNLDNJLN-UHFFFAOYSA-N
Molecular Formula	C7H5Cl3N2O2

992

Barban, SPEX CertiPrep™

CAS: 101-27-9 Molecular Formula: C11H9Cl2NO2 Molecular Weight (g/mol): 258.098 InChI Key: MCOQHIWZJUDQIC-UHFFFAOYSA-N PubChem CID: 7551 ChEBI: CHEBI:33421 IUPAC Name: 4-chlorobut-2-ynyl N-(3-chlorophenyl)carbamate SMILES: C1=CC(=CC(=C1)Cl)NC(=O)OCC#CCCl

Pricing & Availability
Specifications

PubChem CID	7551
CAS	101-27-9
Molecular Weight (g/mol)	258.098
ChEBI	CHEBI:33421
SMILES	C1=CC(=CC(=C1)Cl)NC(=O)OCC#CCCl
IUPAC Name	4-chlorobut-2-ynyl N-(3-chlorophenyl)carbamate
InChI Key	MCOQHIWZJUDQIC-UHFFFAOYSA-N
Molecular Formula	C11H9Cl2NO2

993

Acetonitrile in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 75-05-8 Molecular Formula: C2H3N Molecular Weight (g/mol): 41.053 InChI Key: WEVYAHXRMPXWCK-UHFFFAOYSA-N PubChem CID: 6342 ChEBI: CHEBI:38472 IUPAC Name: acetonitrile SMILES: CC#N

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Specifications

PubChem CID	6342
CAS	75-05-8
Molecular Weight (g/mol)	41.053
ChEBI	CHEBI:38472
SMILES	CC#N
IUPAC Name	acetonitrile
InChI Key	WEVYAHXRMPXWCK-UHFFFAOYSA-N
Molecular Formula	C2H3N

994

trans-1,2-Dichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 156-60-5 Molecular Formula: C2H2Cl2 Molecular Weight (g/mol): 96.94 MDL Number: MFCD00062942 InChI Key: KFUSEUYYWQURPO-OWOJBTEDSA-N PubChem CID: 638186 ChEBI: CHEBI:29027 IUPAC Name: (1E)-1,2-dichloroethene SMILES: Cl\C=C\Cl

Pricing & Availability
Specifications

PubChem CID	638186
CAS	156-60-5
Molecular Weight (g/mol)	96.94
ChEBI	CHEBI:29027
MDL Number	MFCD00062942
SMILES	Cl\C=C\Cl
IUPAC Name	(1E)-1,2-dichloroethene
InChI Key	KFUSEUYYWQURPO-OWOJBTEDSA-N
Molecular Formula	C2H2Cl2

995

2-Methyltetrahydrofuran, SPEX CertiPrep™

CAS: 96-47-9 Molecular Formula: C5H10O Molecular Weight (g/mol): 86.134 InChI Key: JWUJQDFVADABEY-UHFFFAOYSA-N PubChem CID: 7301 IUPAC Name: 2-methyloxolane SMILES: CC1CCCO1

Pricing & Availability
Specifications

PubChem CID	7301
CAS	96-47-9
Molecular Weight (g/mol)	86.134
SMILES	CC1CCCO1
IUPAC Name	2-methyloxolane
InChI Key	JWUJQDFVADABEY-UHFFFAOYSA-N
Molecular Formula	C5H10O

996

Acid Matrix Spike, SPEX CertiPrep™

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

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997

N,N-Dimethylacetamide in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 127-19-5 Molecular Formula: C4H9NO Molecular Weight (g/mol): 87.12 MDL Number: MFCD00008686 InChI Key: FXHOOIRPVKKKFG-UHFFFAOYSA-N PubChem CID: 31374 ChEBI: CHEBI:84254 IUPAC Name: N,N-dimethylacetamide SMILES: CN(C)C(C)=O

Pricing & Availability
Specifications

PubChem CID	31374
CAS	127-19-5
Molecular Weight (g/mol)	87.12
ChEBI	CHEBI:84254
MDL Number	MFCD00008686
SMILES	CN(C)C(C)=O
IUPAC Name	N,N-dimethylacetamide
InChI Key	FXHOOIRPVKKKFG-UHFFFAOYSA-N
Molecular Formula	C4H9NO

998

Internal Standard, For USEPA Method 525.2, SPEX CertiPrep™

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

Pricing & Availability

999

SPEX CertiPrep Method 515.1 Chlorinated Herbicides as Methyl Ester Derivatives, Spex CertiPrep™

Pricing & Availability

1,000

QC Check Solution, SPEX CertiPrep™

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

Pricing & Availability

1,001

Free Acids Mix; SPEX CertiPrep™

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

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1,002

Derivitized Endothall Standard, SPEX CertiPrep™

CAS: 62059-43-2 Molecular Formula: C8H12O6 Molecular Weight (g/mol): 204.178 InChI Key: RHLALKDQINFLPM-UHFFFAOYSA-N PubChem CID: 23615703 IUPAC Name: 7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid;hydrate SMILES: C1CC2C(C(C1O2)C(=O)O)C(=O)O.O

Pricing & Availability
Specifications

PubChem CID	23615703
CAS	62059-43-2
Molecular Weight (g/mol)	204.178
SMILES	C1CC2C(C(C1O2)C(=O)O)C(=O)O.O
IUPAC Name	7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid;hydrate
InChI Key	RHLALKDQINFLPM-UHFFFAOYSA-N
Molecular Formula	C8H12O6

1,003

Halogenated Pesticides and Herbicides Blend, SPEX CertiPrep™

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

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1,004

Surrogate Standard, 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

1,005

Dimethyl-P-Nitrophenyphosphate, SPEX CertiPrep™

CAS: 950-35-6 Molecular Formula: C8H10NO6P Molecular Weight (g/mol): 247.143 InChI Key: BAFQDKPJKOLXFZ-UHFFFAOYSA-N PubChem CID: 13708 IUPAC Name: dimethyl (4-nitrophenyl) phosphate SMILES: COP(=O)(OC)OC1=CC=C(C=C1)[N+](=O)[O-]

Pricing & Availability
Specifications

PubChem CID	13708
CAS	950-35-6
Molecular Weight (g/mol)	247.143
SMILES	COP(=O)(OC)OC1=CC=C(C=C1)[N+](=O)[O-]
IUPAC Name	dimethyl (4-nitrophenyl) phosphate
InChI Key	BAFQDKPJKOLXFZ-UHFFFAOYSA-N
Molecular Formula	C8H10NO6P

EPA Methods Standards

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

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

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

trans-1,2-Dichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

N,N-Dimethylacetamide in Dimethyl Sulfoxide, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Internal Standard, For USEPA Method 525.2, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

SPEX CertiPrep Method 515.1 Chlorinated Herbicides as Methyl Ester Derivatives, Spex CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

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

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

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

Picloram Methyl Ester, SPEX CertiPrep™

Barban, SPEX CertiPrep™

Acetonitrile in Dimethyl Sulfoxide, SPEX CertiPrep™

trans-1,2-Dichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™

2-Methyltetrahydrofuran, SPEX CertiPrep™

Acid Matrix Spike, SPEX CertiPrep™

N,N-Dimethylacetamide in Dimethyl Sulfoxide, SPEX CertiPrep™

Internal Standard, For USEPA Method 525.2, SPEX CertiPrep™

SPEX CertiPrep Method 515.1 Chlorinated Herbicides as Methyl Ester Derivatives, Spex CertiPrep™

QC Check Solution, SPEX CertiPrep™

Free Acids Mix; SPEX CertiPrep™

Derivitized Endothall Standard, SPEX CertiPrep™

Halogenated Pesticides and Herbicides Blend, SPEX CertiPrep™

Surrogate Standard, SPEX CertiPrep™

Dimethyl-P-Nitrophenyphosphate, SPEX CertiPrep™