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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961 – 975 of 1,030 results

961

Nitromathan in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 75-52-5 Molecular Formula: CH3NO2 Molecular Weight (g/mol): 61.04 MDL Number: MFCD00007400 InChI Key: LYGJENNIWJXYER-UHFFFAOYSA-N PubChem CID: 6375 ChEBI: CHEBI:77701 IUPAC Name: nitromethane SMILES: C[N+]([O-])=O

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Specifications

PubChem CID	6375
CAS	75-52-5
Molecular Weight (g/mol)	61.04
ChEBI	CHEBI:77701
MDL Number	MFCD00007400
SMILES	C[N+]([O-])=O
IUPAC Name	nitromethane
InChI Key	LYGJENNIWJXYER-UHFFFAOYSA-N
Molecular Formula	CH3NO2

962

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

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

Pricing & Availability

963

Aroclor Mix 2, SPEX CertiPrep™

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

Pricing & Availability

964

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

965

2,7-Dimethylnaphthalene, SPEX CertiPrep™

CAS: 582-16-1 Molecular Formula: C12H12 Molecular Weight (g/mol): 156.23 MDL Number: MFCD00004121 InChI Key: LRQYSMQNJLZKPS-UHFFFAOYSA-N PubChem CID: 11396 ChEBI: CHEBI:48632 IUPAC Name: 2,7-dimethylnaphthalene SMILES: CC1=CC2=CC(C)=CC=C2C=C1

Pricing & Availability
Specifications

PubChem CID	11396
CAS	582-16-1
Molecular Weight (g/mol)	156.23
ChEBI	CHEBI:48632
MDL Number	MFCD00004121
SMILES	CC1=CC2=CC(C)=CC=C2C=C1
IUPAC Name	2,7-dimethylnaphthalene
InChI Key	LRQYSMQNJLZKPS-UHFFFAOYSA-N
Molecular Formula	C12H12

966

Dichloroacetonitrile, SPEX CertiPrep™

CAS: 3018-12-0 Molecular Formula: C2HCl2N Molecular Weight (g/mol): 109.937 InChI Key: STZZWJCGRKXEFF-UHFFFAOYSA-N PubChem CID: 18177 ChEBI: CHEBI:82444 IUPAC Name: 2,2-dichloroacetonitrile SMILES: C(#N)C(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	18177
CAS	3018-12-0
Molecular Weight (g/mol)	109.937
ChEBI	CHEBI:82444
SMILES	C(#N)C(Cl)Cl
IUPAC Name	2,2-dichloroacetonitrile
InChI Key	STZZWJCGRKXEFF-UHFFFAOYSA-N
Molecular Formula	C2HCl2N

967

Dinocap, SPEX CertiPrep™

CAS: 39300-45-3 Molecular Formula: C18H26N2O6 Molecular Weight (g/mol): 366.41

Pricing & Availability
Specifications

CAS	39300-45-3
Molecular Weight (g/mol)	366.41
Molecular Formula	C18H26N2O6

968

Crotoxyphos, SPEX CertiPrep™

CAS: 7700-17-6 Molecular Formula: C14H19O6P Molecular Weight (g/mol): 314.274 InChI Key: XXXSILNSXNPGKG-ZHACJKMWSA-N PubChem CID: 5371578 ChEBI: CHEBI:82110 IUPAC Name: 1-phenylethyl (E)-3-dimethoxyphosphoryloxybut-2-enoate SMILES: CC(C1=CC=CC=C1)OC(=O)C=C(C)OP(=O)(OC)OC

Pricing & Availability
Specifications

PubChem CID	5371578
CAS	7700-17-6
Molecular Weight (g/mol)	314.274
ChEBI	CHEBI:82110
SMILES	CC(C1=CC=CC=C1)OC(=O)C=C(C)OP(=O)(OC)OC
IUPAC Name	1-phenylethyl (E)-3-dimethoxyphosphoryloxybut-2-enoate
InChI Key	XXXSILNSXNPGKG-ZHACJKMWSA-N
Molecular Formula	C14H19O6P

969

1,2-Difluorotetrachloroethane, SPEX CertiPrep™

CAS: 76-12-0 Molecular Formula: C2Cl4F2 Molecular Weight (g/mol): 203.819 InChI Key: UGCSPKPEHQEOSR-UHFFFAOYSA-N PubChem CID: 6427 IUPAC Name: 1,1,2,2-tetrachloro-1,2-difluoroethane SMILES: C(C(F)(Cl)Cl)(F)(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	6427
CAS	76-12-0
Molecular Weight (g/mol)	203.819
SMILES	C(C(F)(Cl)Cl)(F)(Cl)Cl
IUPAC Name	1,1,2,2-tetrachloro-1,2-difluoroethane
InChI Key	UGCSPKPEHQEOSR-UHFFFAOYSA-N
Molecular Formula	C2Cl4F2

970

2,2'-Difluorobiphenyls, SPEX CertiPrep™

CAS: 388-82-9 Molecular Formula: C12H8F2 Molecular Weight (g/mol): 190.19 MDL Number: MFCD00017910 InChI Key: PXFIPIAXFGAEMJ-UHFFFAOYSA-N PubChem CID: 123055 IUPAC Name: 2,2'-difluoro-1,1'-biphenyl SMILES: FC1=CC=CC=C1C1=CC=CC=C1F

Pricing & Availability
Specifications

PubChem CID	123055
CAS	388-82-9
Molecular Weight (g/mol)	190.19
MDL Number	MFCD00017910
SMILES	FC1=CC=CC=C1C1=CC=CC=C1F
IUPAC Name	2,2'-difluoro-1,1'-biphenyl
InChI Key	PXFIPIAXFGAEMJ-UHFFFAOYSA-N
Molecular Formula	C12H8F2

971

Pentachlorophenol, SPEX CertiPrep™

CAS: 87-86-5 Molecular Formula: C6HCl5O Molecular Weight (g/mol): 266.323 InChI Key: IZUPBVBPLAPZRR-UHFFFAOYSA-N PubChem CID: 992 ChEBI: CHEBI:17642 IUPAC Name: 2,3,4,5,6-pentachlorophenol SMILES: C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)O

Pricing & Availability
Specifications

PubChem CID	992
CAS	87-86-5
Molecular Weight (g/mol)	266.323
ChEBI	CHEBI:17642
SMILES	C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)O
IUPAC Name	2,3,4,5,6-pentachlorophenol
InChI Key	IZUPBVBPLAPZRR-UHFFFAOYSA-N
Molecular Formula	C6HCl5O

972

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

973

Toxaphene Standard, High Level, SPEX CertiPrep™

CAS: 8001-35-2

Pricing & Availability
Specifications

CAS	8001-35-2

974

2-Chloropropene, SPEX CertiPrep™

CAS: 557-98-2 Molecular Formula: C3H5Cl Molecular Weight (g/mol): 76.523 InChI Key: PNLQPWWBHXMFCA-UHFFFAOYSA-N PubChem CID: 11203 IUPAC Name: 2-chloroprop-1-ene SMILES: CC(=C)Cl

Pricing & Availability
Specifications

PubChem CID	11203
CAS	557-98-2
Molecular Weight (g/mol)	76.523
SMILES	CC(=C)Cl
IUPAC Name	2-chloroprop-1-ene
InChI Key	PNLQPWWBHXMFCA-UHFFFAOYSA-N
Molecular Formula	C3H5Cl

975

2,3-Dichloropropionic Acid, SPEX CertiPrep™

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EPA Methods Standards

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Nitromathan in Dimethyl Sulfoxide, 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

Aroclor Mix 2, 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

2,7-Dimethylnaphthalene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

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

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

Pentachlorophenol, 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

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

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

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