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.

871 – 885 of 1,049 results

871

Endothall-PFPH-Stock Standard, SPEX CertiPrep™

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

Pricing & Availability

872

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

873

Carbon Tetrachloride in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 56-23-5 Molecular Formula: CCl4 Molecular Weight (g/mol): 153.81 MDL Number: MFCD00000785 InChI Key: VZGDMQKNWNREIO-UHFFFAOYSA-N PubChem CID: 5943 ChEBI: CHEBI:27385 IUPAC Name: tetrachloromethane SMILES: ClC(Cl)(Cl)Cl

Pricing & Availability
Specifications

PubChem CID	5943
CAS	56-23-5
Molecular Weight (g/mol)	153.81
ChEBI	CHEBI:27385
MDL Number	MFCD00000785
SMILES	ClC(Cl)(Cl)Cl
IUPAC Name	tetrachloromethane
InChI Key	VZGDMQKNWNREIO-UHFFFAOYSA-N
Molecular Formula	CCl4

874

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

875

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

876

Aspon, SPEX CertiPrep™

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

Pricing & Availability

877

Technical Chlordane, High Level, SPEX CertiPrep™

CAS: 57-74-9 Molecular Formula: C10H6Cl8 Molecular Weight (g/mol): 409.758 InChI Key: BIWJNBZANLAXMG-POTNBKISSA-N PubChem CID: 24860539 SMILES: C1C2C(C(C1Cl)Cl)C3(C(=C(C2(C3(Cl)Cl)Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	24860539
CAS	57-74-9
Molecular Weight (g/mol)	409.758
SMILES	C1C2C(C(C1Cl)Cl)C3(C(=C(C2(C3(Cl)Cl)Cl)Cl)Cl)Cl
InChI Key	BIWJNBZANLAXMG-POTNBKISSA-N
Molecular Formula	C10H6Cl8

878

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

879

CLP Additional Analytes Mix, SPEX CertiPrep™

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

Pricing & Availability

880

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

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

Pricing & Availability

881

2,2,'3,3',4,5',6,6'-Octachlorobiphenyl, SPEX CertiPrep™

CAS: 40186-71-8 Molecular Formula: C12H2Cl8 Molecular Weight (g/mol): 429.748 InChI Key: LJQOBQLZTUSEJA-UHFFFAOYSA-N PubChem CID: 38410 IUPAC Name: 1,2,3,5-tetrachloro-4-(2,3,5,6-tetrachlorophenyl)benzene SMILES: C1=C(C(=C(C(=C1Cl)Cl)Cl)C2=C(C(=CC(=C2Cl)Cl)Cl)Cl)Cl

Pricing & Availability
Specifications

PubChem CID	38410
CAS	40186-71-8
Molecular Weight (g/mol)	429.748
SMILES	C1=C(C(=C(C(=C1Cl)Cl)Cl)C2=C(C(=CC(=C2Cl)Cl)Cl)Cl)Cl
IUPAC Name	1,2,3,5-tetrachloro-4-(2,3,5,6-tetrachlorophenyl)benzene
InChI Key	LJQOBQLZTUSEJA-UHFFFAOYSA-N
Molecular Formula	C12H2Cl8

882

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

883

n-Tridecane, SPEX CertiPrep™

CAS: 629-50-5 Molecular Formula: C13H28 Molecular Weight (g/mol): 184.37 MDL Number: MFCD00008979 InChI Key: IIYFAKIEWZDVMP-UHFFFAOYSA-N PubChem CID: 12388 ChEBI: CHEBI:35998 IUPAC Name: tridecane SMILES: CCCCCCCCCCCCC

Pricing & Availability
Specifications

PubChem CID	12388
CAS	629-50-5
Molecular Weight (g/mol)	184.37
ChEBI	CHEBI:35998
MDL Number	MFCD00008979
SMILES	CCCCCCCCCCCCC
IUPAC Name	tridecane
InChI Key	IIYFAKIEWZDVMP-UHFFFAOYSA-N
Molecular Formula	C13H28

884

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

885

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

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Endothall-PFPH-Stock Standard, 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

Carbon Tetrachloride in Dimethyl Sulfoxide, 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

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

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

Technical Chlordane, 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

CLP Additional Analytes Mix, 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

2,2,'3,3',4,5',6,6'-Octachlorobiphenyl, 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

n-Tridecane, 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

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

Endothall-PFPH-Stock Standard, SPEX CertiPrep™

Toluene in Dimethyl Sulfoxide, SPEX CertiPrep™

Carbon Tetrachloride in Dimethyl Sulfoxide, SPEX CertiPrep™

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

1,1,1-Trichloroacetone, SPEX CertiPrep™

Aspon, SPEX CertiPrep™

Technical Chlordane, High Level, SPEX CertiPrep™

2-Chloropropene, SPEX CertiPrep™

CLP Additional Analytes Mix, SPEX CertiPrep™

Volatiles Supplementary Volatiles Mix, SPEX CertiPrep™

2,2,'3,3',4,5',6,6'-Octachlorobiphenyl, SPEX CertiPrep™

Crotoxyphos, SPEX CertiPrep™

n-Tridecane, SPEX CertiPrep™

2,2'-Difluorobiphenyls, SPEX CertiPrep™

1,2-Difluorotetrachloroethane, SPEX CertiPrep™