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

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

962

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

963

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

964

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

965

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

966

3-Methylthipene, SPEX CertiPrep™

CAS: 616-44-4 Molecular Formula: C5H6S Molecular Weight (g/mol): 98.163 InChI Key: QENGPZGAWFQWCZ-UHFFFAOYSA-N PubChem CID: 12024 IUPAC Name: 3-methylthiophene SMILES: CC1=CSC=C1

Pricing & Availability
Specifications

PubChem CID	12024
CAS	616-44-4
Molecular Weight (g/mol)	98.163
SMILES	CC1=CSC=C1
IUPAC Name	3-methylthiophene
InChI Key	QENGPZGAWFQWCZ-UHFFFAOYSA-N
Molecular Formula	C5H6S

967

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

968

4,4'-Dichlorobenzophenone, SPEX CertiPrep™

CAS: 90-98-2 Molecular Formula: C13H8Cl2O Molecular Weight (g/mol): 251.11 MDL Number: MFCD00000623 InChI Key: OKISUZLXOYGIFP-UHFFFAOYSA-N PubChem CID: 7034 ChEBI: CHEBI:27519 IUPAC Name: bis(4-chlorophenyl)methanone SMILES: ClC1=CC=C(C=C1)C(=O)C1=CC=C(Cl)C=C1

Pricing & Availability
Specifications

PubChem CID	7034
CAS	90-98-2
Molecular Weight (g/mol)	251.11
ChEBI	CHEBI:27519
MDL Number	MFCD00000623
SMILES	ClC1=CC=C(C=C1)C(=O)C1=CC=C(Cl)C=C1
IUPAC Name	bis(4-chlorophenyl)methanone
InChI Key	OKISUZLXOYGIFP-UHFFFAOYSA-N
Molecular Formula	C13H8Cl2O

969

Chlorotoluron, SPEX CertiPrep™

Pricing & Availability

970

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

971

2-Chloro-1,3-butadiene, SPEX CertiPrep™

CAS: 126-99-8 Molecular Formula: C4H5Cl Molecular Weight (g/mol): 88.534 InChI Key: YACLQRRMGMJLJV-UHFFFAOYSA-N PubChem CID: 31369 ChEBI: CHEBI:39481 IUPAC Name: 2-chlorobuta-1,3-diene SMILES: C=CC(=C)Cl

Pricing & Availability
Specifications

PubChem CID	31369
CAS	126-99-8
Molecular Weight (g/mol)	88.534
ChEBI	CHEBI:39481
SMILES	C=CC(=C)Cl
IUPAC Name	2-chlorobuta-1,3-diene
InChI Key	YACLQRRMGMJLJV-UHFFFAOYSA-N
Molecular Formula	C4H5Cl

972

1,2 Dichloroethane in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 107-06-2 Molecular Formula: C2H4Cl2 Molecular Weight (g/mol): 98.95 MDL Number: MFCD00000963 InChI Key: WSLDOOZREJYCGB-UHFFFAOYSA-N PubChem CID: 11 ChEBI: CHEBI:27789 IUPAC Name: 1,2-dichloroethane SMILES: ClCCCl

Pricing & Availability
Specifications

PubChem CID	11
CAS	107-06-2
Molecular Weight (g/mol)	98.95
ChEBI	CHEBI:27789
MDL Number	MFCD00000963
SMILES	ClCCCl
IUPAC Name	1,2-dichloroethane
InChI Key	WSLDOOZREJYCGB-UHFFFAOYSA-N
Molecular Formula	C2H4Cl2

973

Aroclor Mix 2, SPEX CertiPrep™

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

Pricing & Availability

974

Aroclor Mix 1, SPEX CertiPrep™

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

Pricing & Availability

975

Aroclor 1268, High Level, SPEX CertiPrep™

CAS: 37324-23-5

Pricing & Availability
Specifications

CAS	37324-23-5

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EPA Methods Standards

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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

Siduron, 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

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

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

3-Methylthipene, 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

4,4'-Dichlorobenzophenone, 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

2-Chloro-1,3-butadiene, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

1,2 Dichloroethane in Dimethyl Sulfoxide, 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

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

Aroclor 1268, High Level, SPEX CertiPrep™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More