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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976 – 990 of 1,030 results

976

Dimethylpolysiloxane, SPEX CertiPrep™

CAS: 9016-00-6 Molecular Formula: (C2H6OSi)n Molecular Weight (g/mol): 74.15 MDL Number: MFCD00084411 InChI Key: SEUDSDUUJXTXSV-UHFFFAOYSA-N IUPAC Name: dimethylsilanone SMILES: C[Si](C)(-*)O-*

Pricing & Availability
Specifications

CAS	9016-00-6
Molecular Weight (g/mol)	74.15
MDL Number	MFCD00084411
SMILES	C[Si](C)(-)O-
IUPAC Name	dimethylsilanone
InChI Key	SEUDSDUUJXTXSV-UHFFFAOYSA-N
Molecular Formula	(C2H6OSi)n

977

3,4-Dichlorotoluene, SPEX CertiPrep™

CAS: 95-75-0 Molecular Formula: C7H6Cl2 Molecular Weight (g/mol): 161.025 InChI Key: WYUIWKFIFOJVKW-UHFFFAOYSA-N PubChem CID: 7256 IUPAC Name: 1,2-dichloro-4-methylbenzene SMILES: CC1=CC(=C(C=C1)Cl)Cl

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Specifications

PubChem CID	7256
CAS	95-75-0
Molecular Weight (g/mol)	161.025
SMILES	CC1=CC(=C(C=C1)Cl)Cl
IUPAC Name	1,2-dichloro-4-methylbenzene
InChI Key	WYUIWKFIFOJVKW-UHFFFAOYSA-N
Molecular Formula	C7H6Cl2

978

GC/MS Tuning Standard, High Level, 4-Bromofluorobenzene, SPEX CertiPrep™

CAS: 460-00-4 Molecular Formula: C6H4BrF Molecular Weight (g/mol): 175.00 MDL Number: MFCD00000342 InChI Key: AITNMTXHTIIIBB-UHFFFAOYSA-N PubChem CID: 9993 IUPAC Name: 1-bromo-4-fluorobenzene SMILES: FC1=CC=C(Br)C=C1

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Specifications

PubChem CID	9993
CAS	460-00-4
Molecular Weight (g/mol)	175.00
MDL Number	MFCD00000342
SMILES	FC1=CC=C(Br)C=C1
IUPAC Name	1-bromo-4-fluorobenzene
InChI Key	AITNMTXHTIIIBB-UHFFFAOYSA-N
Molecular Formula	C6H4BrF

979

Analyte Mix, High Level, SPEX CertiPrep™

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

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980

RCRA Target Analytes, SPEX CertiPrep™

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

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981

EPA CLP Volatiles Standards Low Concentration, SPEX CertiPrep™

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

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982

3,4-Dichlorophenol, SPEX CertiPrep™

CAS: 95-77-2 Molecular Formula: C6H4Cl2O Molecular Weight (g/mol): 163.00 MDL Number: MFCD00002258 InChI Key: WDNBURPWRNALGP-UHFFFAOYSA-N PubChem CID: 7258 ChEBI: CHEBI:34323 IUPAC Name: 3,4-dichlorophenol SMILES: OC1=CC=C(Cl)C(Cl)=C1

Pricing & Availability
Specifications

PubChem CID	7258
CAS	95-77-2
Molecular Weight (g/mol)	163.00
ChEBI	CHEBI:34323
MDL Number	MFCD00002258
SMILES	OC1=CC=C(Cl)C(Cl)=C1
IUPAC Name	3,4-dichlorophenol
InChI Key	WDNBURPWRNALGP-UHFFFAOYSA-N
Molecular Formula	C6H4Cl2O

983

Dibromofluoromethane, SPEX CertiPrep™

CAS: 1868-53-7 Molecular Formula: CHBr2F Molecular Weight (g/mol): 191.825 InChI Key: LTUTVFXOEGMHMP-UHFFFAOYSA-N PubChem CID: 61280 IUPAC Name: dibromo(fluoro)methane SMILES: C(F)(Br)Br

Pricing & Availability
Specifications

PubChem CID	61280
CAS	1868-53-7
Molecular Weight (g/mol)	191.825
SMILES	C(F)(Br)Br
IUPAC Name	dibromo(fluoro)methane
InChI Key	LTUTVFXOEGMHMP-UHFFFAOYSA-N
Molecular Formula	CHBr2F

984

Hexamethylphosphoramide, SPEX CertiPrep™

CAS: 680-31-9 Molecular Formula: C6H18N3OP Molecular Weight (g/mol): 179.204 InChI Key: GNOIPBMMFNIUFM-UHFFFAOYSA-N PubChem CID: 12679 ChEBI: CHEBI:24565 IUPAC Name: N-[bis(dimethylamino)phosphoryl]-N-methylmethanamine SMILES: CN(C)P(=O)(N(C)C)N(C)C

Pricing & Availability
Specifications

PubChem CID	12679
CAS	680-31-9
Molecular Weight (g/mol)	179.204
ChEBI	CHEBI:24565
SMILES	CN(C)P(=O)(N(C)C)N(C)C
IUPAC Name	N-[bis(dimethylamino)phosphoryl]-N-methylmethanamine
InChI Key	GNOIPBMMFNIUFM-UHFFFAOYSA-N
Molecular Formula	C6H18N3OP

985

Asana (Esfenvalerate), SPEX CertiPrep™

CAS: 66230-04-4 Molecular Formula: C25H22ClNO3 Molecular Weight (g/mol): 419.905 InChI Key: NYPJDWWKZLNGGM-RPWUZVMVSA-N PubChem CID: 10342051 ChEBI: CHEBI:39346 IUPAC Name: [(S)-cyano-(3-phenoxyphenyl)methyl] (2S)-2-(4-chlorophenyl)-3-methylbutanoate SMILES: CC(C)C(C1=CC=C(C=C1)Cl)C(=O)OC(C#N)C2=CC(=CC=C2)OC3=CC=CC=C3

Pricing & Availability
Specifications

PubChem CID	10342051
CAS	66230-04-4
Molecular Weight (g/mol)	419.905
ChEBI	CHEBI:39346
SMILES	CC(C)C(C1=CC=C(C=C1)Cl)C(=O)OC(C#N)C2=CC(=CC=C2)OC3=CC=CC=C3
IUPAC Name	[(S)-cyano-(3-phenoxyphenyl)methyl] (2S)-2-(4-chlorophenyl)-3-methylbutanoate
InChI Key	NYPJDWWKZLNGGM-RPWUZVMVSA-N
Molecular Formula	C25H22ClNO3

986

Combined Stock Solution, SPEX CertiPrep™

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

Pricing & Availability

987

Vanillin, SPEX CertiPrep™

CAS: 121-33-5 Molecular Formula: C8H8O3 Molecular Weight (g/mol): 152.15 MDL Number: MFCD00006942,MFCD08702848 InChI Key: MWOOGOJBHIARFG-UHFFFAOYSA-N PubChem CID: 1183 ChEBI: CHEBI:18346 IUPAC Name: 4-hydroxy-3-methoxybenzaldehyde SMILES: COC1=CC(C=O)=CC=C1O

Pricing & Availability
Specifications

PubChem CID	1183
CAS	121-33-5
Molecular Weight (g/mol)	152.15
ChEBI	CHEBI:18346
MDL Number	MFCD00006942,MFCD08702848
SMILES	COC1=CC(C=O)=CC=C1O
IUPAC Name	4-hydroxy-3-methoxybenzaldehyde
InChI Key	MWOOGOJBHIARFG-UHFFFAOYSA-N
Molecular Formula	C8H8O3

988

Pyridine in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 110-86-1 Molecular Formula: C5H5N Molecular Weight (g/mol): 79.102 InChI Key: JUJWROOIHBZHMG-UHFFFAOYSA-N PubChem CID: 1049 ChEBI: CHEBI:16227 IUPAC Name: pyridine SMILES: C1=CC=NC=C1

Pricing & Availability
Specifications

PubChem CID	1049
CAS	110-86-1
Molecular Weight (g/mol)	79.102
ChEBI	CHEBI:16227
SMILES	C1=CC=NC=C1
IUPAC Name	pyridine
InChI Key	JUJWROOIHBZHMG-UHFFFAOYSA-N
Molecular Formula	C5H5N

989

Surrogate Standard, 2-Nitro-m-xylene, SPEX CertiPrep™

CAS: 81-20-9 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.165 InChI Key: HDFQKJQEWGVKCQ-UHFFFAOYSA-N PubChem CID: 6672 IUPAC Name: 1,3-dimethyl-2-nitrobenzene SMILES: CC1=C(C(=CC=C1)C)[N+](=O)[O-]

Pricing & Availability
Specifications

PubChem CID	6672
CAS	81-20-9
Molecular Weight (g/mol)	151.165
SMILES	CC1=C(C(=CC=C1)C)[N+](=O)[O-]
IUPAC Name	1,3-dimethyl-2-nitrobenzene
InChI Key	HDFQKJQEWGVKCQ-UHFFFAOYSA-N
Molecular Formula	C8H9NO2

990

Surrogate Standard, 4,4'-Dibromobiphenyl, SPEX CertiPrep™

CAS: 92-86-4 Molecular Formula: C12H8Br2 Molecular Weight (g/mol): 312.00 MDL Number: MFCD00000101 InChI Key: HQJQYILBCQPYBI-UHFFFAOYSA-N PubChem CID: 7110 IUPAC Name: 4,4'-dibromo-1,1'-biphenyl SMILES: BrC1=CC=C(C=C1)C1=CC=C(Br)C=C1

Pricing & Availability
Specifications

PubChem CID	7110
CAS	92-86-4
Molecular Weight (g/mol)	312.00
MDL Number	MFCD00000101
SMILES	BrC1=CC=C(C=C1)C1=CC=C(Br)C=C1
IUPAC Name	4,4'-dibromo-1,1'-biphenyl
InChI Key	HQJQYILBCQPYBI-UHFFFAOYSA-N
Molecular Formula	C12H8Br2

EPA Methods Standards

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

3,4-Dichlorotoluene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

GC/MS Tuning Standard, High Level, 4-Bromofluorobenzene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

EPA CLP Volatiles Standards Low Concentration, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

3,4-Dichlorophenol, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

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

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

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

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

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

Dimethylpolysiloxane, SPEX CertiPrep™

3,4-Dichlorotoluene, SPEX CertiPrep™

GC/MS Tuning Standard, High Level, 4-Bromofluorobenzene, SPEX CertiPrep™

Analyte Mix, High Level, SPEX CertiPrep™

RCRA Target Analytes, SPEX CertiPrep™

EPA CLP Volatiles Standards Low Concentration, SPEX CertiPrep™

3,4-Dichlorophenol, SPEX CertiPrep™

Dibromofluoromethane, SPEX CertiPrep™

Hexamethylphosphoramide, SPEX CertiPrep™

Asana (Esfenvalerate), SPEX CertiPrep™

Combined Stock Solution, SPEX CertiPrep™

Vanillin, SPEX CertiPrep™

Pyridine in Dimethyl Sulfoxide, SPEX CertiPrep™

Surrogate Standard, 2-Nitro-m-xylene, SPEX CertiPrep™

Surrogate Standard, 4,4'-Dibromobiphenyl, SPEX CertiPrep™