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.

1,006 – 1,020 of 1,049 results

1,006

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

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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

1,007

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

1,008

Ethylcyclopentane, SPEX CertiPrep™

CAS: 1640-89-7 Molecular Formula: C7H14 Molecular Weight (g/mol): 98.189 InChI Key: IFTRQJLVEBNKJK-UHFFFAOYSA-N PubChem CID: 15431 IUPAC Name: ethylcyclopentane SMILES: CCC1CCCC1

Pricing & Availability
Specifications

PubChem CID	15431
CAS	1640-89-7
Molecular Weight (g/mol)	98.189
SMILES	CCC1CCCC1
IUPAC Name	ethylcyclopentane
InChI Key	IFTRQJLVEBNKJK-UHFFFAOYSA-N
Molecular Formula	C7H14

1,009

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

1,010

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

1,011

1,2-Dimethyl-4-Ethylbenzene, SPEX CertiPrep™

CAS: 934-80-5 Molecular Formula: C10H14 Molecular Weight (g/mol): 134.222 InChI Key: SBUYFICWQNHBCM-UHFFFAOYSA-N PubChem CID: 13629 IUPAC Name: 4-ethyl-1,2-dimethylbenzene SMILES: CCC1=CC(=C(C=C1)C)C

Pricing & Availability
Specifications

PubChem CID	13629
CAS	934-80-5
Molecular Weight (g/mol)	134.222
SMILES	CCC1=CC(=C(C=C1)C)C
IUPAC Name	4-ethyl-1,2-dimethylbenzene
InChI Key	SBUYFICWQNHBCM-UHFFFAOYSA-N
Molecular Formula	C10H14

1,012

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

1,013

Toxaphene Standard, High Level, SPEX CertiPrep™

CAS: 8001-35-2

Pricing & Availability
Specifications

CAS	8001-35-2

1,014

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

1,015

QC Check Solution, SPEX CertiPrep™

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

Pricing & Availability

1,016

Performance Check Standard, SPEX CertiPrep™

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

Pricing & Availability

1,017

Analyte Mix B, SPEX CertiPrep™

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

Pricing & Availability

1,018

Volatile Calibration Standard, SPEX CertiPrep™

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

Pricing & Availability

1,019

Internal/Surrogate Standard, SPEX CertiPrep™

CAS: 98-08-8 Molecular Formula: C7H5F3 Molecular Weight (g/mol): 146.112 InChI Key: GETTZEONDQJALK-UHFFFAOYSA-N PubChem CID: 7368 ChEBI: CHEBI:36810 IUPAC Name: trifluoromethylbenzene SMILES: C1=CC=C(C=C1)C(F)(F)F

Pricing & Availability
Specifications

PubChem CID	7368
CAS	98-08-8
Molecular Weight (g/mol)	146.112
ChEBI	CHEBI:36810
SMILES	C1=CC=C(C=C1)C(F)(F)F
IUPAC Name	trifluoromethylbenzene
InChI Key	GETTZEONDQJALK-UHFFFAOYSA-N
Molecular Formula	C7H5F3

1,020

2-Chloro-1,3-butadiene, SPEX CertiPrep™

CAS: 126-99-8 Molecular Formula: C4H5Cl Molecular Weight (g/mol): 88.534 InChI Key: YACLQRRMGMJLJV-UHFFFAOYSA-N PubChem CID: 31369 ChEBI: CHEBI:39481 IUPAC Name: 2-chlorobuta-1,3-diene SMILES: C=CC(=C)Cl

Pricing & Availability
Specifications

PubChem CID	31369
CAS	126-99-8
Molecular Weight (g/mol)	88.534
ChEBI	CHEBI:39481
SMILES	C=CC(=C)Cl
IUPAC Name	2-chlorobuta-1,3-diene
InChI Key	YACLQRRMGMJLJV-UHFFFAOYSA-N
Molecular Formula	C4H5Cl

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

Ethylcyclopentane, 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-Dimethyl-4-Ethylbenzene, 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

Toxaphene Standard, High Level, 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

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

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

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

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

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

2-Chloro-1,3-butadiene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

2-Methyltetrahydrofuran, SPEX CertiPrep™

Picloram Methyl Ester, SPEX CertiPrep™

Ethylcyclopentane, SPEX CertiPrep™

Diazinon-O-Analog, SPEX CertiPrep™

Dibensyl Phthalate, SPEX CertiPrep™

1,2-Dimethyl-4-Ethylbenzene, SPEX CertiPrep™

Surrogate Standard, SPEX CertiPrep™

Toxaphene Standard, High Level, SPEX CertiPrep™

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

QC Check Solution, SPEX CertiPrep™

Performance Check Standard, SPEX CertiPrep™

Analyte Mix B, SPEX CertiPrep™

Volatile Calibration Standard, SPEX CertiPrep™

Internal/Surrogate Standard, SPEX CertiPrep™

2-Chloro-1,3-butadiene, SPEX CertiPrep™