Substance Identification Information from EPA's Substance Registry

Metadata Updated: December 3, 2020

The Substance Registry Services (SRS) is the authoritative resource for basic information about substances of interest to the U.S. EPA and its state and tribal partners. Substances, particularly chemicals, can have many valid synonyms. For example, toluene, methyl benzene, and phenyl methane, are commonly used names for the same chemical. EPA programs collect environmental data for this chemical using each of these names, plus others. This diversity leads to problems when a user is looking for programmatic data for toluene but is unaware that the data is stored under the synonym methyl benzene. For each substance, the SRS identifies the statutes, EPA programs, as well as organization external to EPA, that track or regulate that substance and the synonym used by that statute, EPA program or external organization. Besides standardized information for each chemical, such as the Chemical Abstracts Services name and the Chemical Abstracts Number and the EPA Registry Name (the EPA standard name), the SRS also includes additional information, such as molecular weight and molecular formula. Additionally, an SRS Internal Tracking Number uniquely identifies each substance, enabling cross-walking between synonyms.

EPA is providing a large .ZIP file providing the SRS data in CSV format, and a separate small metadata file in XML containing the field names and definitions.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

References

https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D
https://edg.epa.gov/metadata/rest/document?id=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D

Dates

Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020

Metadata Source

Harvested from OEI-OIC Non-Geo Records

Additional Metadata

Resource Type Dataset
Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020
Publisher U.S. EPA Office of Environmental Information (OEI)
Unique Identifier Unknown
Maintainer
Identifier 0AEA7FA5-98C2-4175-AE3E-E70947456E86
Data First Published 2014-01-01
Data Last Modified 2014-01-01
Public Access Level public
Bureau Code 020:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://edg.epa.gov/metadata/RestQueryServlet?f=dcat&searchText=metadataFormat:(iso)&owner=109&max=350
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id a603274a-98f8-4f83-b2ce-527c1e231285
Harvest Source Id c9917860-d5d5-4b23-acc3-45c74ce30142
Harvest Source Title OEI-OIC Non-Geo Records
Homepage URL https://iaspub.epa.gov/sor_internet/registry/substreg/home/overview/home.do
License https://edg.epa.gov/EPA_Data_License.html
Program Code 020:072
Related Documents https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D, https://edg.epa.gov/metadata/rest/document?id=%7B0AEA7FA5-98C2-4175-AE3E-E70947456E86%7D
Source Datajson Identifier True
Source Hash 7ffdbea5e09f1082a7bd8fe6b182ba254d201086
Source Schema Version 1.1
Spatial -180.0,18.0,-66.0,72.0

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