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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Dermal absorption

Currently viewing:

Administrative data

Endpoint:
dermal absorption, other
Remarks:
QSAR method for chemicals properties assessment.
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
QSAR prediction: US EPA accepted QSAR method for chemicals properties assessment.

Data source

Reference
Reference Type:
other: QSAR model
Title:
EPI Suite v 4.1/DERMWIN v2.01
Author:
US EPA
Year:
2014
Bibliographic source:
http://epa.gov/oppt/exposure/pubs/episuite.htm

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
Using the DERMWIN v2.01 QSAR model
GLP compliance:
no
Remarks:
not applicable to QSAR models

Test material

Constituent 1
Chemical structure
Reference substance name:
O-isopropyl ethylthiocarbamate
EC Number:
205-517-7
EC Name:
O-isopropyl ethylthiocarbamate
Cas Number:
141-98-0
Molecular formula:
C6H13NOS
IUPAC Name:
N-ethyl(propan-2-yloxy)carbothioamide
Test material form:
liquid
Details on test material:
IPETC is prepared through reacting ethoxycarbonyl isothiocyanate/ Ethyl isothiocyanatoformate (CAS 16182-04-0) with propan-2-ol/ isopropyl alcohol (CAS Number 67-63-0) and Butan-1-ol/ butyl alcohol (CAS Number 71-36-3).

IPETC/O-isopropyl ethylthiocarbamate contains propan-2-ol (CAS number 67-63-0) and Butan-1-ol (CAS number 67-63-0) which are an integral part of the substance.
Propan-2-ol (CAS number 67-63-0) and Butan-1-ol (CAS number 67-63-0) are both reagents used in the manufacture of IPETC/O-isopropyl ethylthiocarbamate. Therefore, Propan-2-ol (CAS number 67-63-0) and Butan-1-ol (CAS number 67-63-0) need to be considered in the assessment of IPETC/O-isopropyl ethylthiocarbamate.

EC Name: propan-2-ol
CAS Number :67-63-0
EC Number:200-661-7
CAS Name: isopropyl alcohol

EC Name: Butan-1-ol
CAS Number : 71-36-3
EC Number: 200-751-6
CAS Name: butyl alcohol
Radiolabelling:
no

Test animals

Species:
other: QSAR model,
Strain:
other: QSAR model,
Sex:
not specified

Administration / exposure

Type of coverage:
other: QSAR model
Vehicle:
other: QSAR model
Duration of exposure:
not applicable to QSAR models
Doses:
not applicable to QSAR models
No. of animals per group:
not applicable to QSAR models
Control animals:
no
Details on study design:
not applicable to QSAR models
Details on in vitro test system (if applicable):
not applicable to QSAR models

Results and discussion

Signs and symptoms of toxicity:
not specified
Dermal irritation:
not specified
Absorption in different matrices:
A QSAR model predicts that the permeability of IPETC to human skin is quite low. The permeability coefficient was determined to be 7.62e-003 mg/cm2, which is around 1% of the skin penetration rate.
Predicted dermally absorbed coefficient was determined to be Kp (est)=0.0375 cm/hr

Any other information on results incl. tables

A QSAR model predicts that the permeability of IPETC to human skin is quite low. The permeability coefficient was determined to be 7.62e-003 mg/cm2, which is around 1% of the skin penetration rate.

Predicted dermally absorbed coefficient was determined to be Kp (est)=0.0375 cm/hr

Applicant's summary and conclusion

Conclusions:
A QSAR model predicts that the permeability of IPETC to human skin is quite low. The permeability coefficient was determined to be 7.62e-003 mg/cm2, which is around 1% of the skin penetration rate.
Predicted dermally absorbed coefficient was determined to be Kp (est)=0.0375 cm/hr
Executive summary:

A QSAR model predicts that the permeability of IPETC to human skin is quite low. The permeability coefficient was determined to be 7.62e-003 mg/cm2, which is around 1% of the skin penetration rate.

Predicted dermally absorbed coefficient was determined to be Kp (est)=0.0375 cm/hr