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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916 – 930 of 989 results

916

Methyl-3,5-Dichlorobenzoic, SPEX CertiPrep™

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917

Analyte Mix, High Level, SPEX CertiPrep™

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

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918

Trichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 79-01-6 Molecular Formula: C2HCl3 Molecular Weight (g/mol): 131.38 InChI Key: XSTXAVWGXDQKEL-UHFFFAOYSA-N PubChem CID: 6575 ChEBI: CHEBI:16602 IUPAC Name: 1,1,2-trichloroethene SMILES: C(=C(Cl)Cl)Cl

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Specifications

PubChem CID	6575
CAS	79-01-6
Molecular Weight (g/mol)	131.38
ChEBI	CHEBI:16602
SMILES	C(=C(Cl)Cl)Cl
IUPAC Name	1,1,2-trichloroethene
InChI Key	XSTXAVWGXDQKEL-UHFFFAOYSA-N
Molecular Formula	C2HCl3

919

Heptonic Acid, SPEX CertiPrep™

CAS: 111-14-8 Molecular Formula: C7H14O2 Molecular Weight (g/mol): 130.187 InChI Key: MNWFXJYAOYHMED-UHFFFAOYSA-N PubChem CID: 8094 ChEBI: CHEBI:45571 IUPAC Name: heptanoic acid SMILES: CCCCCCC(=O)O

Pricing & Availability
Specifications

PubChem CID	8094
CAS	111-14-8
Molecular Weight (g/mol)	130.187
ChEBI	CHEBI:45571
SMILES	CCCCCCC(=O)O
IUPAC Name	heptanoic acid
InChI Key	MNWFXJYAOYHMED-UHFFFAOYSA-N
Molecular Formula	C7H14O2

920

Base/Neutral Fraction Calibration Check Compounds, SPEX CertiPrep™

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

Pricing & Availability

921

1-Propanethiol, SPEX CertiPrep™

CAS: 107-03-9 Molecular Formula: C3H8S Molecular Weight (g/mol): 76.157 InChI Key: SUVIGLJNEAMWEG-UHFFFAOYSA-N PubChem CID: 7848 ChEBI: CHEBI:8473 IUPAC Name: propane-1-thiol SMILES: CCCS

Pricing & Availability
Specifications

PubChem CID	7848
CAS	107-03-9
Molecular Weight (g/mol)	76.157
ChEBI	CHEBI:8473
SMILES	CCCS
IUPAC Name	propane-1-thiol
InChI Key	SUVIGLJNEAMWEG-UHFFFAOYSA-N
Molecular Formula	C3H8S

922

Cyclopentane, SPEX CertiPrep™

CAS: 287-92-3 Molecular Formula: C5H10 Molecular Weight (g/mol): 70.135 InChI Key: RGSFGYAAUTVSQA-UHFFFAOYSA-N PubChem CID: 9253 ChEBI: CHEBI:23492 IUPAC Name: cyclopentane SMILES: C1CCCC1

Pricing & Availability
Specifications

PubChem CID	9253
CAS	287-92-3
Molecular Weight (g/mol)	70.135
ChEBI	CHEBI:23492
SMILES	C1CCCC1
IUPAC Name	cyclopentane
InChI Key	RGSFGYAAUTVSQA-UHFFFAOYSA-N
Molecular Formula	C5H10

923

Appendix IX Mix A, SPEX CertiPrep™

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

Pricing & Availability

924

Tetraethylene Glycol, SPEX CertiPrep™

CAS: 112-60-7 Molecular Formula: C8H18O5 Molecular Weight (g/mol): 194.227 InChI Key: UWHCKJMYHZGTIT-UHFFFAOYSA-N PubChem CID: 8200 ChEBI: CHEBI:44920 IUPAC Name: 2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol SMILES: C(COCCOCCOCCO)O

Pricing & Availability
Specifications

PubChem CID	8200
CAS	112-60-7
Molecular Weight (g/mol)	194.227
ChEBI	CHEBI:44920
SMILES	C(COCCOCCOCCO)O
IUPAC Name	2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol
InChI Key	UWHCKJMYHZGTIT-UHFFFAOYSA-N
Molecular Formula	C8H18O5

925

Internal Standard, Fluorobenzene, SPEX CertiPrep™

CAS: 462-06-6 Molecular Formula: C6H5F Molecular Weight (g/mol): 96.10 MDL Number: MFCD00000280 InChI Key: PYLWMHQQBFSUBP-UHFFFAOYSA-N PubChem CID: 10008 ChEBI: CHEBI:5115 IUPAC Name: fluorobenzene SMILES: FC1=CC=CC=C1

Pricing & Availability
Specifications

PubChem CID	10008
CAS	462-06-6
Molecular Weight (g/mol)	96.10
ChEBI	CHEBI:5115
MDL Number	MFCD00000280
SMILES	FC1=CC=CC=C1
IUPAC Name	fluorobenzene
InChI Key	PYLWMHQQBFSUBP-UHFFFAOYSA-N
Molecular Formula	C6H5F

926

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™

CAS: 352439-08-8 Molecular Formula: C7H5Cl3O Molecular Weight (g/mol): 216.497 InChI Key: WCVOGSZTONGSQY-RHIBPKLGSA-N PubChem CID: 16212193 IUPAC Name: 1,3,5-trichloro-2,4-dideuterio-6-(trideuteriomethoxy)benzene SMILES: COC1=C(C=C(C=C1Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	16212193
CAS	352439-08-8
Molecular Weight (g/mol)	216.497
SMILES	COC1=C(C=C(C=C1Cl)Cl)Cl
IUPAC Name	1,3,5-trichloro-2,4-dideuterio-6-(trideuteriomethoxy)benzene
InChI Key	WCVOGSZTONGSQY-RHIBPKLGSA-N
Molecular Formula	C7H5Cl3O

927

Formamide in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 75-12-7 Molecular Formula: CH3NO Molecular Weight (g/mol): 45.04 MDL Number: MFCD00007941 InChI Key: ZHNUHDYFZUAESO-UHFFFAOYSA-N PubChem CID: 713 ChEBI: CHEBI:48431 IUPAC Name: formamide SMILES: NC=O

Pricing & Availability
Specifications

PubChem CID	713
CAS	75-12-7
Molecular Weight (g/mol)	45.04
ChEBI	CHEBI:48431
MDL Number	MFCD00007941
SMILES	NC=O
IUPAC Name	formamide
InChI Key	ZHNUHDYFZUAESO-UHFFFAOYSA-N
Molecular Formula	CH3NO

928

n-Tricosane, SPEX CertiPrep™

CAS: 638-67-5 Molecular Formula: C23H48 Molecular Weight (g/mol): 324.637 InChI Key: FIGVVZUWCLSUEI-UHFFFAOYSA-N PubChem CID: 12534 ChEBI: CHEBI:32934 IUPAC Name: tricosane SMILES: CCCCCCCCCCCCCCCCCCCCCCC

Pricing & Availability
Specifications

PubChem CID	12534
CAS	638-67-5
Molecular Weight (g/mol)	324.637
ChEBI	CHEBI:32934
SMILES	CCCCCCCCCCCCCCCCCCCCCCC
IUPAC Name	tricosane
InChI Key	FIGVVZUWCLSUEI-UHFFFAOYSA-N
Molecular Formula	C23H48

929

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

930

2,2',3',4,6-Pentachlorobiphenyl, SPEX CertiPrep™

CAS: 60233-25-2 Molecular Formula: C12H5Cl5 Molecular Weight (g/mol): 326.422 InChI Key: GOFFZTAPOOICFT-UHFFFAOYSA-N PubChem CID: 43238 IUPAC Name: 1,3,5-trichloro-2-(2,3-dichlorophenyl)benzene SMILES: C1=CC(=C(C(=C1)Cl)Cl)C2=C(C=C(C=C2Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	43238
CAS	60233-25-2
Molecular Weight (g/mol)	326.422
SMILES	C1=CC(=C(C(=C1)Cl)Cl)C2=C(C=C(C=C2Cl)Cl)Cl
IUPAC Name	1,3,5-trichloro-2-(2,3-dichlorophenyl)benzene
InChI Key	GOFFZTAPOOICFT-UHFFFAOYSA-N
Molecular Formula	C12H5Cl5

EPA Methods Standards

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Methyl-3,5-Dichlorobenzoic, 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

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

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

Base/Neutral Fraction Calibration Check Compounds, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

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

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

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

n-Tricosane, 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

2,2',3',4,6-Pentachlorobiphenyl, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Methyl-3,5-Dichlorobenzoic, SPEX CertiPrep™

Analyte Mix, High Level, SPEX CertiPrep™

Trichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™

Heptonic Acid, SPEX CertiPrep™

Base/Neutral Fraction Calibration Check Compounds, SPEX CertiPrep™

1-Propanethiol, SPEX CertiPrep™

Cyclopentane, SPEX CertiPrep™

Appendix IX Mix A, SPEX CertiPrep™

Tetraethylene Glycol, SPEX CertiPrep™

Internal Standard, Fluorobenzene, SPEX CertiPrep™

Wine Standard in Methanol 100ppm, Labeled Three Component Anisole Internal Std. Mix, SPEX CertiPrep™

Formamide in Dimethyl Sulfoxide, SPEX CertiPrep™

n-Tricosane, SPEX CertiPrep™

Hexamethylphosphoramide, SPEX CertiPrep™

2,2',3',4,6-Pentachlorobiphenyl, SPEX CertiPrep™