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 995 results

916

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

917

o-Xylene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 95-47-6 Molecular Formula: C8H10 Molecular Weight (g/mol): 106.17 MDL Number: MFCD00008519 InChI Key: CTQNGGLPUBDAKN-UHFFFAOYSA-N PubChem CID: 7237 ChEBI: CHEBI:28063 IUPAC Name: 1,2-xylene SMILES: CC1=CC=CC=C1C

Pricing & Availability
Specifications

PubChem CID	7237
CAS	95-47-6
Molecular Weight (g/mol)	106.17
ChEBI	CHEBI:28063
MDL Number	MFCD00008519
SMILES	CC1=CC=CC=C1C
IUPAC Name	1,2-xylene
InChI Key	CTQNGGLPUBDAKN-UHFFFAOYSA-N
Molecular Formula	C8H10

918

Tetradifon, SPEX CertiPrep™

CAS: 116-29-0 Molecular Formula: C12H6Cl4O2S Molecular Weight (g/mol): 356.038 InChI Key: MLGCXEBRWGEOQX-UHFFFAOYSA-N PubChem CID: 8305 ChEBI: CHEBI:39330 IUPAC Name: 1,2,4-trichloro-5-(4-chlorophenyl)sulfonylbenzene SMILES: C1=CC(=CC=C1S(=O)(=O)C2=CC(=C(C=C2Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	8305
CAS	116-29-0
Molecular Weight (g/mol)	356.038
ChEBI	CHEBI:39330
SMILES	C1=CC(=CC=C1S(=O)(=O)C2=CC(=C(C=C2Cl)Cl)Cl)Cl
IUPAC Name	1,2,4-trichloro-5-(4-chlorophenyl)sulfonylbenzene
InChI Key	MLGCXEBRWGEOQX-UHFFFAOYSA-N
Molecular Formula	C12H6Cl4O2S

919

Propargyl Alcohol, SPEX CertiPrep™

CAS: 107-19-7 Molecular Formula: C3H4O Molecular Weight (g/mol): 56.06 MDL Number: MFCD00002912 InChI Key: TVDSBUOJIPERQY-UHFFFAOYSA-N PubChem CID: 7859 ChEBI: CHEBI:28905 IUPAC Name: prop-2-yn-1-ol SMILES: OCC#C

Pricing & Availability
Specifications

PubChem CID	7859
CAS	107-19-7
Molecular Weight (g/mol)	56.06
ChEBI	CHEBI:28905
MDL Number	MFCD00002912
SMILES	OCC#C
IUPAC Name	prop-2-yn-1-ol
InChI Key	TVDSBUOJIPERQY-UHFFFAOYSA-N
Molecular Formula	C3H4O

920

Heptachlor Epoxide, Isomer A, SPEX CertiPrep™

CAS: 28044-83-9 Molecular Formula: C10H5Cl7O Molecular Weight (g/mol): 389.299 InChI Key: ZXFXBSWRVIQKOD-WOBUKFROSA-N PubChem CID: 71317194 SMILES: C12C(C(C3C1O3)Cl)C4(C(=C(C2(C4(Cl)Cl)Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	71317194
CAS	28044-83-9
Molecular Weight (g/mol)	389.299
SMILES	C12C(C(C3C1O3)Cl)C4(C(=C(C2(C4(Cl)Cl)Cl)Cl)Cl)Cl
InChI Key	ZXFXBSWRVIQKOD-WOBUKFROSA-N
Molecular Formula	C10H5Cl7O

921

Free Acids Analyte Mix with Surrogate, SPEX CertiPrep™

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

Pricing & Availability

922

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

CAS: 52663-71-5 Molecular Formula: C12H3Cl7 Molecular Weight (g/mol): 395.306 InChI Key: TZMHVHLTPWKZCI-UHFFFAOYSA-N PubChem CID: 40478 IUPAC Name: 1,2,3,5-tetrachloro-4-(2,3,4-trichlorophenyl)benzene SMILES: C1=CC(=C(C(=C1C2=C(C(=C(C=C2Cl)Cl)Cl)Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	40478
CAS	52663-71-5
Molecular Weight (g/mol)	395.306
SMILES	C1=CC(=C(C(=C1C2=C(C(=C(C=C2Cl)Cl)Cl)Cl)Cl)Cl)Cl
IUPAC Name	1,2,3,5-tetrachloro-4-(2,3,4-trichlorophenyl)benzene
InChI Key	TZMHVHLTPWKZCI-UHFFFAOYSA-N
Molecular Formula	C12H3Cl7

923

Siduron, SPEX CertiPrep™

CAS: 1982-49-6 Molecular Formula: C14H20N2O Molecular Weight (g/mol): 232.33 MDL Number: MFCD00072453 InChI Key: JXVIIQLNUPXOII-UHFFFAOYNA-N PubChem CID: 16116 ChEBI: CHEBI:81744 IUPAC Name: 1-(2-methylcyclohexyl)-3-phenylurea SMILES: CC1CCCCC1NC(=O)NC1=CC=CC=C1

Pricing & Availability
Specifications

PubChem CID	16116
CAS	1982-49-6
Molecular Weight (g/mol)	232.33
ChEBI	CHEBI:81744
MDL Number	MFCD00072453
SMILES	CC1CCCCC1NC(=O)NC1=CC=CC=C1
IUPAC Name	1-(2-methylcyclohexyl)-3-phenylurea
InChI Key	JXVIIQLNUPXOII-UHFFFAOYNA-N
Molecular Formula	C14H20N2O

924

Phthalic Acid Di-n-Amyl Ester, SPEX CertiPrep™

CAS: 131-18-0 Molecular Formula: C18H26O4 Molecular Weight (g/mol): 306.402 InChI Key: IPKKHRVROFYTEK-UHFFFAOYSA-N PubChem CID: 8561 ChEBI: CHEBI:34680 IUPAC Name: dipentyl benzene-1,2-dicarboxylate SMILES: CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC

Pricing & Availability
Specifications

PubChem CID	8561
CAS	131-18-0
Molecular Weight (g/mol)	306.402
ChEBI	CHEBI:34680
SMILES	CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC
IUPAC Name	dipentyl benzene-1,2-dicarboxylate
InChI Key	IPKKHRVROFYTEK-UHFFFAOYSA-N
Molecular Formula	C18H26O4

925

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

926

1,1,1-Trichloroacetone, SPEX CertiPrep™

CAS: 918-00-3 Molecular Formula: C3H3Cl3O Molecular Weight (g/mol): 161.41 MDL Number: MFCD00018829 InChI Key: SMZHKGXSEAGRTI-UHFFFAOYSA-N PubChem CID: 13514 IUPAC Name: 1,1,1-trichloropropan-2-one SMILES: CC(=O)C(Cl)(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	13514
CAS	918-00-3
Molecular Weight (g/mol)	161.41
MDL Number	MFCD00018829
SMILES	CC(=O)C(Cl)(Cl)Cl
IUPAC Name	1,1,1-trichloropropan-2-one
InChI Key	SMZHKGXSEAGRTI-UHFFFAOYSA-N
Molecular Formula	C3H3Cl3O

927

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

Pricing & Availability
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

928

Toluene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 108-88-3 Molecular Formula: C7H8 Molecular Weight (g/mol): 92.14 MDL Number: MFCD00008512 InChI Key: YXFVVABEGXRONW-UHFFFAOYSA-N PubChem CID: 1140 ChEBI: CHEBI:17578 IUPAC Name: toluene SMILES: CC1=CC=CC=C1

Pricing & Availability
Specifications

PubChem CID	1140
CAS	108-88-3
Molecular Weight (g/mol)	92.14
ChEBI	CHEBI:17578
MDL Number	MFCD00008512
SMILES	CC1=CC=CC=C1
IUPAC Name	toluene
InChI Key	YXFVVABEGXRONW-UHFFFAOYSA-N
Molecular Formula	C7H8

929

Acid Matrix Spike, SPEX CertiPrep™

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

Pricing & Availability

930

2,6,11,15-Tetramethylhexadecane, SPEX CertiPrep™

CAS: 504-44-9 Molecular Formula: C20H42 Molecular Weight (g/mol): 282.556 InChI Key: KKFZXXATNGJPJS-UHFFFAOYSA-N PubChem CID: 136331 IUPAC Name: 2,6,11,15-tetramethylhexadecane SMILES: CC(C)CCCC(C)CCCCC(C)CCCC(C)C

Pricing & Availability
Specifications

PubChem CID	136331
CAS	504-44-9
Molecular Weight (g/mol)	282.556
SMILES	CC(C)CCCC(C)CCCCC(C)CCCC(C)C
IUPAC Name	2,6,11,15-tetramethylhexadecane
InChI Key	KKFZXXATNGJPJS-UHFFFAOYSA-N
Molecular Formula	C20H42

EPA Methods Standards

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

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

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

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

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

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

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

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

Phthalic Acid Di-n-Amyl Ester, 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

1,1,1-Trichloroacetone, 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

Toluene in Dimethyl Sulfoxide, 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

2,6,11,15-Tetramethylhexadecane, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More