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A-Z List of Substances

The substances in IRIS are listed in order alphabetically by the substance name. You can click on the Alphabetical letter corresponding to the chemicals beginning with that letter to list the relevant substances, or use your browser's "Find" command to search for a substance name or Chemical Abstracts Service Registry Number (CASRN).

The IRIS Program does not currently develop updated assessments for registered pesticides unless the registered pesticides also have non-pesticide uses. The IRIS user should consult OPP Reregistration Eligibility Decision (RED) documents prepared by the Office of Pesticide Programs for additional health assessment information (see link provided in the OPP Reregistration Eligibility Decision (RED) column below).

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* Refers to the most recent statement of or change to a toxicity value [RfD, RfC, slope factor or unit risk], or most recent significant statement of or change to the basis or justification for the conclusions in the assessment. This column is provided for the convenience of the IRIS user. For specific information, see the Revision History for each substance.

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Displaying 27 Substances:

Substance Name QuickView IRIS Summary Tox Review/
Support Document
Literature Screening Review CASRN Last Significant Revision* OPP Reregistration
Decision (RED)
Naled QuickView for Naled IRIS Summary for Naled Yes 300-76-5 03/31/1987 OPP RED for Naled (PDF 152 pp, 2.41 M)
Naphthalene QuickView for Naphthalene IRIS Summary for Naphthalene Toxicological Review for Naphthalene (PDF 116 pp, 565 K) 91-20-3 09/17/1998
Napropamide QuickView for Napropamide IRIS Summary for Napropamide Yes 15299-99-7 07/01/1989 OPP RED for Napropamide (PDF 161 pp, 824 K)
Nickel carbonyl QuickView for Nickel carbonyl IRIS Summary for Nickel carbonyl Yes 13463-39-3 09/30/1987
Nickel refinery dust QuickView for Nickel refinery dust IRIS Summary for Nickel refinery dust 09/30/1987
Nickel subsulfide QuickView for Nickel subsulfide IRIS Summary for Nickel subsulfide Yes 12035-72-2 09/30/1987
Nickel, soluble salts QuickView for Nickel, soluble salts IRIS Summary for Nickel, soluble salts 08/01/1994
Nitrapyrin QuickView for Nitrapyrin IRIS Summary for Nitrapyrin Yes 1929-82-4 07/01/1992 OPP RED for Nitrapyrin (PDF 88 pp, 1.28 M)
Nitrate QuickView for Nitrate IRIS Summary for Nitrate Yes 14797-55-8 05/01/1991 OPP RED for Nitrate (PDF 36 pp, 297 K)
Nitric oxide QuickView for Nitric oxide IRIS Summary for Nitric oxide Yes 10102-43-9 09/01/1994
Nitrite QuickView for Nitrite IRIS Summary for Nitrite Yes 14797-65-0 01/31/1987
Nitrobenzene QuickView for Nitrobenzene IRIS Summary for Nitrobenzene Toxicological Review for Nitrobenzene (PDF 250 pp, 3.83 M) 98-95-3 02/06/2009
Nitrogen dioxide QuickView for Nitrogen dioxide IRIS Summary for Nitrogen dioxide Yes 10102-44-0 09/01/1994
Nitroguanidine QuickView for Nitroguanidine IRIS Summary for Nitroguanidine Yes 556-88-7 09/01/1990
p-Nitrophenol QuickView for p-Nitrophenol IRIS Summary for p-Nitrophenol Yes 100-02-7 10/01/1991 OPP RED for p-Nitrophenol (PDF 64 pp, 187 K)
2-Nitropropane QuickView for 2-Nitropropane IRIS Summary for 2-Nitropropane Yes 79-46-9 03/01/1991
N-Nitroso-N-methylethylamine QuickView for N-Nitroso-N-methylethylamine IRIS Summary for N-Nitroso-N-methylethylamine Yes 10595-95-6 03/01/1988
N-Nitroso-di-n-butylamine QuickView for N-Nitroso-di-n-butylamine IRIS Summary for N-Nitroso-di-n-butylamine Yes 924-16-3 01/31/1987
N-Nitrosodi-N-propylamine QuickView for N-Nitrosodi-N-propylamine IRIS Summary for N-Nitrosodi-N-propylamine Yes 621-64-7 03/31/1987
N-Nitrosodiethanolamine QuickView for N-Nitrosodiethanolamine IRIS Summary for N-Nitrosodiethanolamine Yes 1116-54-7 09/30/1987
N-Nitrosodiethylamine QuickView for N-Nitrosodiethylamine IRIS Summary for N-Nitrosodiethylamine Yes 55-18-5 01/31/1987
N-Nitrosodimethylamine QuickView for N-Nitrosodimethylamine IRIS Summary for N-Nitrosodimethylamine Yes 62-75-9 01/31/1987
N-Nitrosodiphenylamine QuickView for N-Nitrosodiphenylamine IRIS Summary for N-Nitrosodiphenylamine Yes 86-30-6 03/31/1987
N-Nitrosopyrrolidine QuickView for N-Nitrosopyrrolidine IRIS Summary for N-Nitrosopyrrolidine Yes 930-55-2 01/31/1987
Nonabromodiphenyl ether QuickView for Nonabromodiphenyl ether IRIS Summary for Nonabromodiphenyl ether Yes 63936-56-1 08/01/1990
Norflurazon QuickView for Norflurazon IRIS Summary for Norflurazon Yes 27314-13-2 01/31/1987 OPP RED for Norflurazon (PDF 15 pp, 202 K)
NuStar QuickView for NuStar IRIS Summary for NuStar Yes 85509-19-9 09/26/1988

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