Provisional Peer-Reviewed Toxicity Values (PPRTVs)

Tris(2-chloroethyl)phosphate

CASRN 115-96-8

PPRTV Toxicity Values Summary Table

Noncancer Assessment

Estimate of Chronic Reference Dose for Oral Exposure (RfD)Last Updated: 09/30/2009
System RfD (mg/kg-day) Basis PoD UF Confidence
Hepatic ,
Urinary
7 x 10-3 Increased absolute and relative weight
Increased absolute and relative weight
BMDL : 6.9 mg/kg-day 1000 Medium
Species Studied: Rat
Duration: 5 d/wk, 16 weeks
Principal Study: NTP 1991
Note: The BMDL of 9.66 mg/kg-day was adjusted for continuous exposure.



Estimate of Subchronic Reference Dose for Oral Exposure (RfD)Last Updated: 09/30/2009
System RfD (mg/kg-day) Basis PoD UF Confidence
Hepatic ,
Urinary
2 x 10-2 Increased absolute and relative weight
Increased absolute and relative weight
BMDL : 6.9 mg/kg-day 300 Medium
Species Studied: Rat
Duration: 5 d/wk, 16 weeks
Principal Study: NTP 1991
Note: The BMDL of 9.66 mg/kg-day was adjusted for continuous exposure.



Estimate of Chronic Reference Concentration for Inhalation Exposure (RfC)Last Updated: 09/30/2009
Data are inadequate to derive a chronic RfC.


Estimate of Subchronic Reference Concentration for Inhalation Exposure (RfC)Last Updated: 09/30/2009
Data are inadequate to derive a subchronic RfC.


Cancer Assessment

Weight of Evidence for CancerLast Updated: 09/30/2009
LI - Likely to be carcinogenic to humans


Estimate of Carcinogenic Risk from Oral ExposureLast Updated: 09/30/2009
Oral Slope Factor: 2 x 10-2 per mg/kg-day
Tumor site(s):
Cancer: Tubular cell adenomas and carcinomas
Species Studied: Rat
Duration: 104 weeks
Principal Study: NTP 1991, Matthews et al. 1993
Note: The BMDL was adjusted for continuous exposure and converted to a human equivalent dose.

Provisional Peer-Reviewed Toxicity Values (PPRTVs)