n-Butanol
CASRN 71-36-3 | DTXSID1021740
- IRIS Summary (PDF) (10 pp, 100 K)
- Status: Development of the n-butanol (re)assessment has been discontinued .
Noncancer Assessment
Reference Dose for Oral Exposure (RfD) (PDF)
(10 pp, 100 K)
Last Updated: 03/31/1987
| System | RfD (mg/kg-day) | Basis | PoD | Composite UF | Confidence |
|---|---|---|---|---|---|
| Nervous | 1 x 10 -1 | Hypoactivity and ataxia |
NOAEL
:
1.25
x 102 mg/kg-day |
1000 | Low |
Reference Concentration for Inhalation Exposure (RfC) (PDF)
(10 pp, 100 K)
Not assessed under the IRIS Program.
Cancer Assessment
Weight of Evidence for Cancer (PDF)
(10 pp, 100 K)
Last Updated: 03/01/1991
| WOE Characterization | Framework for WOE Characterization |
|---|---|
| D (Not classifiable as to human carcinogenicity) | Guidelines for Carcinogen Risk Assessment (U.S. EPA, 1986) |
- Based on no human and no animal cancer data.
- This may be a synopsis of the full weight-of-evidence narrative.
Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (10 pp, 100 K)
Not assessed under the IRIS Program.
Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (10 pp, 100 K)
Not assessed under the IRIS Program.
Program Outlook Details
| Public Assessment Materials | Date |
|---|---|
| Discontinued | Dec-2018 |
Note: The n-butanol (re)assessment has been discontinued. A new/updated assessment will not be added to the IRIS database at this time.
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