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.

991 – 1,005 of 1,049 results

991

Benzontrile, SPEX CertiPrep™

CAS: 100-47-0 Molecular Formula: C7H5N Molecular Weight (g/mol): 103.124 InChI Key: JFDZBHWFFUWGJE-UHFFFAOYSA-N PubChem CID: 7505 ChEBI: CHEBI:27991 IUPAC Name: benzonitrile SMILES: C1=CC=C(C=C1)C#N

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Specifications

PubChem CID	7505
CAS	100-47-0
Molecular Weight (g/mol)	103.124
ChEBI	CHEBI:27991
SMILES	C1=CC=C(C=C1)C#N
IUPAC Name	benzonitrile
InChI Key	JFDZBHWFFUWGJE-UHFFFAOYSA-N
Molecular Formula	C7H5N

992

5-Nitroacenaphthene, SPEX CertiPrep™

CAS: 602-87-9 Molecular Formula: C12H9NO2 Molecular Weight (g/mol): 199.21 MDL Number: MFCD00014277 InChI Key: CUARLQDWYSRQDF-UHFFFAOYSA-N PubChem CID: 11769 ChEBI: CHEBI:82350 IUPAC Name: 5-nitro-1,2-dihydroacenaphthylene SMILES: [O-][N+](=O)C1=C2C=CC=C3CCC(C=C1)=C23

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Specifications

PubChem CID	11769
CAS	602-87-9
Molecular Weight (g/mol)	199.21
ChEBI	CHEBI:82350
MDL Number	MFCD00014277
SMILES	[O-][N+](=O)C1=C2C=CC=C3CCC(C=C1)=C23
IUPAC Name	5-nitro-1,2-dihydroacenaphthylene
InChI Key	CUARLQDWYSRQDF-UHFFFAOYSA-N
Molecular Formula	C12H9NO2

993

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

994

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

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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

995

8141 Mix-B, SPEX CertiPrep™

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

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996

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

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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

997

Internal Standard, Bromodichloromethane, SPEX CertiPrep™

CAS: 75-27-4 Molecular Formula: CHBrCl2 Molecular Weight (g/mol): 163.823 InChI Key: FMWLUWPQPKEARP-UHFFFAOYSA-N PubChem CID: 6359 ChEBI: CHEBI:34591 IUPAC Name: bromo(dichloro)methane SMILES: C(Cl)(Cl)Br

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Specifications

PubChem CID	6359
CAS	75-27-4
Molecular Weight (g/mol)	163.823
ChEBI	CHEBI:34591
SMILES	C(Cl)(Cl)Br
IUPAC Name	bromo(dichloro)methane
InChI Key	FMWLUWPQPKEARP-UHFFFAOYSA-N
Molecular Formula	CHBrCl2

998

3-Chlorotoluene, SPEX CertiPrep™

CAS: 108-41-8 Molecular Formula: C7H7Cl Molecular Weight (g/mol): 126.58 MDL Number: MFCD00000595 InChI Key: OSOUNOBYRMOXQQ-UHFFFAOYSA-N PubChem CID: 7931 IUPAC Name: 1-chloro-3-methylbenzene SMILES: CC1=CC=CC(Cl)=C1

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Specifications

PubChem CID	7931
CAS	108-41-8
Molecular Weight (g/mol)	126.58
MDL Number	MFCD00000595
SMILES	CC1=CC=CC(Cl)=C1
IUPAC Name	1-chloro-3-methylbenzene
InChI Key	OSOUNOBYRMOXQQ-UHFFFAOYSA-N
Molecular Formula	C7H7Cl

999

Internal Standard, 1-Chloro-2-fluorobenzene, SPEX CertiPrep™

CAS: 348-51-6 Molecular Formula: C6H4ClF Molecular Weight (g/mol): 130.55 MDL Number: MFCD00000533 InChI Key: ZCJAYDKWZAWMPR-UHFFFAOYSA-N PubChem CID: 9583 IUPAC Name: 1-chloro-2-fluorobenzene SMILES: FC1=CC=CC=C1Cl

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Specifications

PubChem CID	9583
CAS	348-51-6
Molecular Weight (g/mol)	130.55
MDL Number	MFCD00000533
SMILES	FC1=CC=CC=C1Cl
IUPAC Name	1-chloro-2-fluorobenzene
InChI Key	ZCJAYDKWZAWMPR-UHFFFAOYSA-N
Molecular Formula	C6H4ClF

1,000

4-tert-Butylphenol, SPEX CertiPrep™

CAS: 98-54-4 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.221 InChI Key: QHPQWRBYOIRBIT-UHFFFAOYSA-N PubChem CID: 7393 ChEBI: CHEBI:34444 IUPAC Name: 4-tert-butylphenol SMILES: CC(C)(C)C1=CC=C(C=C1)O

Pricing & Availability
Specifications

PubChem CID	7393
CAS	98-54-4
Molecular Weight (g/mol)	150.221
ChEBI	CHEBI:34444
SMILES	CC(C)(C)C1=CC=C(C=C1)O
IUPAC Name	4-tert-butylphenol
InChI Key	QHPQWRBYOIRBIT-UHFFFAOYSA-N
Molecular Formula	C10H14O

1,001

3-Chlorophenol, SPEX CertiPrep™

CAS: 108-43-0 Molecular Formula: C6H5ClO Molecular Weight (g/mol): 128.56 MDL Number: MFCD00002256 InChI Key: HORNXRXVQWOLPJ-UHFFFAOYSA-N PubChem CID: 7933 ChEBI: CHEBI:38855 IUPAC Name: 3-chlorophenol SMILES: OC1=CC=CC(Cl)=C1

Pricing & Availability
Specifications

PubChem CID	7933
CAS	108-43-0
Molecular Weight (g/mol)	128.56
ChEBI	CHEBI:38855
MDL Number	MFCD00002256
SMILES	OC1=CC=CC(Cl)=C1
IUPAC Name	3-chlorophenol
InChI Key	HORNXRXVQWOLPJ-UHFFFAOYSA-N
Molecular Formula	C6H5ClO

1,002

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

1,003

Halogenated Pesticides and Herbicides Blend, SPEX CertiPrep™

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

Pricing & Availability

1,004

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

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

Pricing & Availability

1,005

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™

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

Pricing & Availability

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EPA Methods Standards

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

5-Nitroacenaphthene, 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

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

8141 Mix-B, 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

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

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

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

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

3-Chlorophenol, 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

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

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

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Benzontrile, SPEX CertiPrep™

5-Nitroacenaphthene, SPEX CertiPrep™

2-Methyltetrahydrofuran, SPEX CertiPrep™

Surrogate Standard, SPEX CertiPrep™

8141 Mix-B, SPEX CertiPrep™

Picloram Methyl Ester, SPEX CertiPrep™

Internal Standard, Bromodichloromethane, SPEX CertiPrep™

3-Chlorotoluene, SPEX CertiPrep™

Internal Standard, 1-Chloro-2-fluorobenzene, SPEX CertiPrep™

4-tert-Butylphenol, SPEX CertiPrep™

3-Chlorophenol, SPEX CertiPrep™

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

Halogenated Pesticides and Herbicides Blend, SPEX CertiPrep™

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

Volatile Organics Combination Mix, Analyte Mixes A, C and D, SPEX CertiPrep™