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EC number: 201-177-9 | CAS number: 79-10-7
Dermal absorption
Administrative data
- Endpoint:
- dermal absorption in vitro / ex vivo
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 995
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Flow-through in vitro skin penetration chamber method according to Frantz et el. (1990).
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Acrylic acid
- EC Number:
- 201-177-9
- EC Name:
- Acrylic acid
- Cas Number:
- 79-10-7
- Molecular formula:
- C3H4O2
- IUPAC Name:
- prop-2-enoic acid
- Details on test material:
- - Name of test material (as cited in study report): Acrylic acid
- Analytical purity: > 98 % (unlabeled AA)
- Supplier: Union Carbide Corporation
- Radiochemical purity (if radiolabelling): >= 98.6 %
- Specific activity (if radiolabelling): 0.14 - 0.4 mCi/mmol
- Locations of the label (if radiolabelling): [1-14C]AA
- Supplier: Sigma Chemical Co. (St. Louis, Mo.)
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Acrylic acid
- Analytical purity: > 98 % (unlabeled AA)
- Supplier: Union Carbide Corporation
- Radiochemical purity (if radiolabelling): >= 98.6 %
- Specific activity (if radiolabelling): 0.14 - 0.4 mCi/mmol
- Locations of the label (if radiolabelling): [1-14C]AA
- Supplier: Sigma Chemical Co. (St. Louis, Mo.) - Radiolabelling:
- yes
Test animals
- Species:
- rat
- Strain:
- Fischer 344
- Sex:
- male
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River Breeding Laboratories (Kingston, NY)
- Substrain: F344/NHsd
- Age at study initiation: approx. 7 wk old
- Weight at study initiation: 210 g
- Diet (ad libitum): Agway Prolab Diet Rat, Agway Inc., Syracuse, NY
- Water (ad libitum)
Administration / exposure
- Type of coverage:
- open
- Vehicle:
- acetone
- Duration of exposure:
- 6 hrs
- Control animals:
- no
- Details on in vitro test system (if applicable):
- SKIN PREPARATION
- Source of skin: dorsal skin from male rats (hair clipped)
PRINCIPLES OF ASSAY
- Diffusion cell: flow-through diffusion cell (Frantz cell)
- Flow-through system: yes
- Test temperature: 32 °C
- Occlusion: no
Results and discussion
- Absorption in different matrices:
- Over a 6-h period, 23.9 ± 5.4% (mean ± SD, n= 3) of the dose was absorbed into the effluent or was found in the skin. At least 60% of the dose evaporated, and total recovery of the applied dose was about 85%.
- Total recovery:
- 85 %
Any other information on results incl. tables
The results from the in vitro experiment supported those of the in vivo study (see 7.1.1).
Applicant's summary and conclusion
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