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.

961 – 975 of 1,049 results

961

Cyanophos, SPEX CertiPrep™

CAS: 2636-26-2 Molecular Formula: C9H10NO3PS Molecular Weight (g/mol): 243.217 InChI Key: SCKHCCSZFPSHGR-UHFFFAOYSA-N PubChem CID: 17522 ChEBI: CHEBI:38621 IUPAC Name: 4-dimethoxyphosphinothioyloxybenzonitrile SMILES: COP(=S)(OC)OC1=CC=C(C=C1)C#N

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Specifications

PubChem CID	17522
CAS	2636-26-2
Molecular Weight (g/mol)	243.217
ChEBI	CHEBI:38621
SMILES	COP(=S)(OC)OC1=CC=C(C=C1)C#N
IUPAC Name	4-dimethoxyphosphinothioyloxybenzonitrile
InChI Key	SCKHCCSZFPSHGR-UHFFFAOYSA-N
Molecular Formula	C9H10NO3PS

962

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

963

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

964

1,1-Dimethoxyethane, SPEX CertiPrep™

CAS: 534-15-6 Molecular Formula: C4H10O2 Molecular Weight (g/mol): 90.122 InChI Key: SPEUIVXLLWOEMJ-UHFFFAOYSA-N PubChem CID: 10795 IUPAC Name: 1,1-dimethoxyethane SMILES: CC(OC)OC

Pricing & Availability
Specifications

PubChem CID	10795
CAS	534-15-6
Molecular Weight (g/mol)	90.122
SMILES	CC(OC)OC
IUPAC Name	1,1-dimethoxyethane
InChI Key	SPEUIVXLLWOEMJ-UHFFFAOYSA-N
Molecular Formula	C4H10O2

965

SPEX CertiPrep Method 515.1 Chlorinated Herbicides as Methyl Ester Derivatives, Spex CertiPrep™

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966

Acid Matrix Spike, SPEX CertiPrep™

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

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967

1,1-Dichloropropene, SPEX CertiPrep™

CAS: 563-58-6 Molecular Formula: C3H4Cl2 Molecular Weight (g/mol): 110.965 InChI Key: ZAIDIVBQUMFXEC-UHFFFAOYSA-N PubChem CID: 11245 IUPAC Name: 1,1-dichloroprop-1-ene SMILES: CC=C(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	11245
CAS	563-58-6
Molecular Weight (g/mol)	110.965
SMILES	CC=C(Cl)Cl
IUPAC Name	1,1-dichloroprop-1-ene
InChI Key	ZAIDIVBQUMFXEC-UHFFFAOYSA-N
Molecular Formula	C3H4Cl2

968

2,4,4-Trimethyl-2-Pentene, SPEX CertiPrep™

CAS: 107-40-4 Molecular Formula: C8H16 Molecular Weight (g/mol): 112.216 InChI Key: LAAVYEUJEMRIGF-UHFFFAOYSA-N PubChem CID: 7869 IUPAC Name: 2,4,4-trimethylpent-2-ene SMILES: CC(=CC(C)(C)C)C

Pricing & Availability
Specifications

PubChem CID	7869
CAS	107-40-4
Molecular Weight (g/mol)	112.216
SMILES	CC(=CC(C)(C)C)C
IUPAC Name	2,4,4-trimethylpent-2-ene
InChI Key	LAAVYEUJEMRIGF-UHFFFAOYSA-N
Molecular Formula	C8H16

969

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

970

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

971

Chlorotoluron, SPEX CertiPrep™

Pricing & Availability

972

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

Pricing & Availability
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

973

trans-1,2-Dichloroethene in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 156-60-5 Molecular Formula: C2H2Cl2 Molecular Weight (g/mol): 96.94 MDL Number: MFCD00062942 InChI Key: KFUSEUYYWQURPO-OWOJBTEDSA-N PubChem CID: 638186 ChEBI: CHEBI:29027 IUPAC Name: (1E)-1,2-dichloroethene SMILES: Cl\C=C\Cl

Pricing & Availability
Specifications

PubChem CID	638186
CAS	156-60-5
Molecular Weight (g/mol)	96.94
ChEBI	CHEBI:29027
MDL Number	MFCD00062942
SMILES	Cl\C=C\Cl
IUPAC Name	(1E)-1,2-dichloroethene
InChI Key	KFUSEUYYWQURPO-OWOJBTEDSA-N
Molecular Formula	C2H2Cl2

974

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

975

Dimethoxymethane, SPEX CertiPrep™

CAS: 109-87-5 Molecular Formula: C3H8O2 Molecular Weight (g/mol): 76.095 InChI Key: NKDDWNXOKDWJAK-UHFFFAOYSA-N PubChem CID: 8020 ChEBI: CHEBI:48341 IUPAC Name: dimethoxymethane SMILES: COCOC

Pricing & Availability
Specifications

PubChem CID	8020
CAS	109-87-5
Molecular Weight (g/mol)	76.095
ChEBI	CHEBI:48341
SMILES	COCOC
IUPAC Name	dimethoxymethane
InChI Key	NKDDWNXOKDWJAK-UHFFFAOYSA-N
Molecular Formula	C3H8O2

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Cyanophos, 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

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

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

SPEX CertiPrep Method 515.1 Chlorinated Herbicides as Methyl Ester Derivatives, 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

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

2,4,4-Trimethyl-2-Pentene, 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

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

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

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

trans-1,2-Dichloroethene in Dimethyl Sulfoxide, 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

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