Selenourea (CASRN 630-10-4)
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0098
Selenourea; CASRN 630-10-4
Health assessment information on a chemical substance is included in IRIS
only after a comprehensive review of chronic toxicity data by U.S. EPA
health scientists from several Program Offices and the Office of Research
and Development. The summaries presented in Sections I and II represent
a consensus reached in the review process. Background information and
explanations of the methods used to derive the values given in IRIS are
provided in the Background Documents.
STATUS OF DATA FOR Selenourea
File First On-Line 01/31/1987
Category (section) |
Status |
Last Revised |
---|---|---|
Oral RfD Assessment (I.A.) | withdrawn | 02/01/1996* |
Inhalation RfC Assessment (I.B.) | no data | |
Carcinogenicity Assessment (II.) | no data |
*A comprehensive review of toxicological studies was completed (2004) - please see section I.A. for more information.
_I. Chronic Health Hazard Assessments for Noncarcinogenic Effects
_I.A. Reference Dose for Chronic Oral Exposure (RfD)
Substance Name — Selenourea
CASRN — 630-10-4
The Oral RfD for selenourea has been withdrawn on 05/01/1991 pending further review by the RfD/RfC Work Group.
Agency Work Group Review — 08/19/1985, 03/22/1989, 03/27/1991, 07/18/1991, 11/06/1991
A comprehensive review of toxicological studies published prior to 2004 indicated that there is insufficient health effects data to derive an RfD for Selenourea at this time.
EPA Contacts:
Please contact the IRIS Hotline for all questions concerning this assessment or IRIS, in general, at (202)566-1676 (phone), (202)566-1749 (FAX) or hotline.iris@epa.gov (internet address).
_I.B. Reference Concentration for Chronic Inhalation Exposure (RfC)
Substance Name — Selenourea
CASRN — 630-10-4
Not available at this time.
_II. Carcinogenicity Assessment for Lifetime Exposure
Substance Name — Selenourea
CASRN — 630-10-4
This substance/agent has not undergone a complete evaluation and determination under US EPA's IRIS program for evidence of human carcinogenic potential.
_III.
[reserved]
_IV. [reserved]
_V. [reserved]
_VI. Bibliography
Substance Name — Selenourea
CASRN — 630-10-4
Not available at this time.
_VII. Revision History
Substance Name — Selenourea
CASRN — 630-10-4
Date |
Section |
Description |
---|---|---|
03/31/1987 | I.A.6. | Documentation corrected |
05/01/1989 | I.A. | Oral RfD summary noted as pending change |
12/01/1989 | VI. | Bibliography on-line |
05/01/1991 | I.A. | Oral RfD withdrawn pending additional review |
05/01/1991 | VI. | Bibliography withdrawn |
01/01/1992 | IV. | Regulatory actions updated |
06/01/1992 | I.A. | Work group review dates added |
08/01/1995 | I.A., VI. | EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995. |
02/01/1996 | I.A. | Contact changed |
04/01/1997 | III., IV., V. | Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information. |
12/03/2002 | I.A. | Screening-Level Literature Review Findings message has been added. |
09/29/2004 | I.A. | Screening-Level Literature Review Findings message has been removed and replaced by comprehensive literature review conclusions. |
_VIII. Synonyms
Selenourea
CASRN — 630-10-4
Last Revised — 01/31/1987
- 630-10-4
- Carbamimidoselenoic acid
- Isoselenourea
- Selenourea
- 2-Selenourea
- Selenouronium