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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Basic toxicokinetics

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Administrative data

Endpoint:
basic toxicokinetics in vivo
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Referred in a recognized source of peer reviewed scientific data on chemicals

Data source

Reference
Reference Type:
review article or handbook
Title:
A study of the skin absorption of ethylbenzene in man.
Author:
Dutkiewicz T & Tyras H
Year:
1967
Bibliographic source:
Br J Ind Med, 24: 330-332.

Materials and methods

Objective of study:
absorption
Test guideline
Qualifier:
according to guideline
Guideline:
other: human epidemiology data
Principles of method if other than guideline:
Test method: Human data; Study of the absorption of ethylbenzene through the skin of the hand and the forearm in men.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethylbenzene
EC Number:
202-849-4
EC Name:
Ethylbenzene
Cas Number:
100-41-4
Molecular formula:
C8H10
IUPAC Name:
ethylbenzene
Details on test material:
0.2 ml of ethylbenzene (173.9 mg)

Test animals

Species:
human
Details on test animals or test system and environmental conditions:
Test subjects: 7 men volunteers.

Administration / exposure

Route of administration:
other: dermal contact
Details on exposure:
0.2 ml of ethylbenzene (173.9 mg) was introduced with a syringe into a watch glass (4.7 cm in diameter) which was tightly fixed to the skin of the forearm. The exposed skin area was 17.3 cm2.
Duration and frequency of treatment / exposure:
10 -15 minutes
Doses / concentrations
Remarks:
Doses / Concentrations:
0.2 ml of ethylbenzene (173.9 mg)

Results and discussion

Any other information on results incl. tables

Study observed:

Ethylbenzene was absorbed rapidly via the human skin.

The rate of absorption of ethylbenzene ranged from 22 to 33 mg/cm2/hr.

Applicant's summary and conclusion

Conclusions:
Ethylbenzene showed rapid absorption via the human skin.