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).
(To search the IRIS database, use Advanced Search)
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
* 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.
A
B
C
D
E
F
G
H
I
J K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
All
Displaying 29 Substances:
Substance Name |
QuickView |
IRIS Summary |
Tox Review/ Support Document |
Literature Screening Review |
CASRN |
Last Significant Revision* |
OPP Reregistration Eligibility Decision (RED) |
Haloxyfop-methyl |
![QuickView for Haloxyfop-methyl](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Haloxyfop-methyl](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
69806-40-2 |
05/01/1990 |
|
Harmony |
![QuickView for Harmony](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Harmony](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
79277-27-3 |
09/26/1988 |
|
Heptachlor |
![QuickView for Heptachlor](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Heptachlor](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
76-44-8 |
01/01/1991 |
(PDF 82 pp,
2.93 M)
|
Heptachlor epoxide |
![QuickView for Heptachlor epoxide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Heptachlor epoxide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
1024-57-3 |
01/01/1991 |
|
n-Heptane |
![QuickView for n-Heptane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for n-Heptane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
142-82-5 |
01/01/1993 |
|
Hexabromobenzene |
![QuickView for Hexabromobenzene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexabromobenzene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
|
87-82-1 |
03/01/1988 |
|
Hexabromodiphenyl ether |
![QuickView for Hexabromodiphenyl ether](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexabromodiphenyl ether](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
36483-60-0 |
08/01/1990 |
|
2,2',4,4',5,5'-Hexabromodiphenyl ether (BDE-153) |
![QuickView for 2,2',4,4',5,5'-Hexabromodiphenyl ether (BDE-153)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for 2,2',4,4',5,5'-Hexabromodiphenyl ether (BDE-153)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
(PDF 66 pp, 301 K)
|
|
68631-49-2 |
06/30/2008 |
|
Hexachlorobenzene |
![QuickView for Hexachlorobenzene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachlorobenzene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
118-74-1 |
03/01/1991 |
|
Hexachlorobutadiene |
![QuickView for Hexachlorobutadiene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachlorobutadiene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
|
87-68-3 |
05/01/1993 |
|
alpha-Hexachlorocyclohexane (alpha-HCH) |
![QuickView for alpha-Hexachlorocyclohexane (alpha-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for alpha-Hexachlorocyclohexane (alpha-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
319-84-6 |
01/01/1991 |
|
beta-Hexachlorocyclohexane (beta-HCH) |
![QuickView for beta-Hexachlorocyclohexane (beta-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for beta-Hexachlorocyclohexane (beta-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
319-85-7 |
01/01/1991 |
|
delta-Hexachlorocyclohexane (delta-HCH) |
![QuickView for delta-Hexachlorocyclohexane (delta-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for delta-Hexachlorocyclohexane (delta-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
319-86-8 |
03/31/1987 |
|
epsilon-Hexachlorocyclohexane (epsilon-HC) |
![QuickView for epsilon-Hexachlorocyclohexane (epsilon-HC)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for epsilon-Hexachlorocyclohexane (epsilon-HC)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
6108-10-7 |
03/31/1987 |
|
gamma-Hexachlorocyclohexane (gamma-HCH) |
![QuickView for gamma-Hexachlorocyclohexane (gamma-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for gamma-Hexachlorocyclohexane (gamma-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
|
58-89-9 |
03/01/1988 |
(PDF 20 pp,
2.26 M)
|
technical Hexachlorocyclohexane (t-HCH) |
![QuickView for technical Hexachlorocyclohexane (t-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for technical Hexachlorocyclohexane (t-HCH)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
608-73-1 |
01/01/1991 |
|
Hexachlorocyclopentadiene (HCCPD) |
![QuickView for Hexachlorocyclopentadiene (HCCPD)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachlorocyclopentadiene (HCCPD)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
(PDF 60 pp, 237 K)
|
Yes |
77-47-4 |
07/05/2001 |
|
Hexachlorodibenzo-p-dioxin (HxCDD), mixture of 1,2,3,6,7,8-HxCDD and 1,2,3,7,8,9-HxCDD |
![QuickView for Hexachlorodibenzo-p-dioxin (HxCDD), mixture of 1,2,3,6,7,8-HxCDD and 1,2,3,7,8,9-HxCDD](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachlorodibenzo-p-dioxin (HxCDD), mixture of 1,2,3,6,7,8-HxCDD and 1,2,3,7,8,9-HxCDD](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
57653-85-7 |
01/01/1991 |
|
Hexachloroethane |
![QuickView for Hexachloroethane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachloroethane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
67-72-1 |
01/01/1991 |
|
Hexachlorophene |
![QuickView for Hexachlorophene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexachlorophene](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
70-30-4 |
08/22/1988 |
|
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) |
![QuickView for Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
|
121-82-4 |
08/01/1990 |
|
1,6-Hexamethylene diisocyanate |
![QuickView for 1,6-Hexamethylene diisocyanate](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for 1,6-Hexamethylene diisocyanate](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
822-06-0 |
09/01/1994 |
|
n-Hexane |
![QuickView for n-Hexane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for n-Hexane](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
(PDF 210 pp, 1.40 M)
|
Yes |
110-54-3 |
12/23/2005 |
|
Hexazinone |
![QuickView for Hexazinone](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hexazinone](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
51235-04-2 |
09/30/1987 |
(PDF 4 pp,
17 K)
|
Hydrazine/Hydrazine sulfate |
![QuickView for Hydrazine/Hydrazine sulfate](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hydrazine/Hydrazine sulfate](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
302-01-2 |
01/01/1991 |
|
Hydrogen chloride |
![QuickView for Hydrogen chloride](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hydrogen chloride](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
7647-01-0 |
07/01/1995 |
|
Hydrogen cyanide |
![QuickView for Hydrogen cyanide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hydrogen cyanide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
|
74-90-8 |
09/01/1994 |
|
Hydrogen sulfide |
![QuickView for Hydrogen sulfide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hydrogen sulfide](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
(PDF 74 pp, 1.44 M)
|
|
7783-06-4 |
07/28/2003 |
|
Hydroquinone |
![QuickView for Hydroquinone](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
![IRIS Summary for Hydroquinone](https://webarchive.library.unt.edu/eot2008/20081109182344im_/http://www.epa.gov/ncea/iris/images/icon_document.gif) |
|
Yes |
123-31-9 |
10/01/1990 |
|
A
B
C
D
E
F
G
H
I
J K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
All
Top of page