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Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
data is from reliable handbooks

Data source

Reference
Reference Type:
review article or handbook
Title:
Prussian Blue Irritation
Author:
W. Morton Grant, Joel S. Schuman
Year:
1993
Bibliographic source:
Toxicology of the Eye: Effects on the Eyes and Visual System from Chemicals, Drugs, Metals and Mineral, Plants, Toxins and Venoms: Also, Systemic Side Effects from Eye Medications, pg 1216, 4th Edition ,1993

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: as mentioned below
Principles of method if other than guideline:
To assess the eye irritation potential of Prussian blue in rabbits
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
- Name of test material: Prussian blue
- IUPAC name: C.I. Pigment Blue 27
- Molecular formula: C6FeN6.4/3Fe
- Molecular weight: 859.23 g/mol
- Smiles : [CH-](#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[CH-](#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[CH-] (#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[Fe+3].[Fe+3].[Fe+3].[Fe+3]
- InChI : 1S/18CN.7Fe/c18*1-2;;;;;;;/q18*-1;3*+2;4*+3
- Substance type: Inorganic
- Physical state: Solid powder (dark blue)
Specific details on test material used for the study:
- Name of test material: Prussian blue
- IUPAC name: iron(2+);iron(3+);octadecacyanide
- Common name: C.I. Pigment Blue 27
- Molecular formula: C6FeN6.4/3Fe
- Molecular weight: 859.23 g/mol
- Smiles : [CH-](#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[CH-](#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[CH-] (#N)[Fe+2]([CH-]#N)([CH-]#N)([CH-]#N)([CH-]#N)[CH-]#N.[Fe+3].[Fe+3].[Fe+3].[Fe+3]
- InChI : 1S/18CN.7Fe/c18*1-2;;;;;;;/q18*-1;3*+2;4*+3
- Substance type: Inorganic
- Physical state: Solid powder (dark blue)

Test animals / tissue source

Species:
rabbit
Strain:
not specified
Details on test animals or tissues and environmental conditions:
no data available

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not specified
Amount / concentration applied:
no data available
Duration of treatment / exposure:
no data available
Observation period (in vivo):
no data available
Duration of post- treatment incubation (in vitro):
no data available
Number of animals or in vitro replicates:
no data available
Details on study design:
no data available

Results and discussion

In vitro

Other effects / acceptance of results:
no data available

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: no data available
Reversibility:
not specified
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
Permanent coloration of the cornea was observed, but no signs of irritation.

Applicant's summary and conclusion

Interpretation of results:
other: not irritating
Conclusions:
Tattooing the corneas of rabbits with Prussian Blue led to permanent coloration of the corneas, but did not cause any irritation.
Hence, Prussian Blue can be considered to be not irritating to rabbit eyes.
Executive summary:

The eye irritation potential of Prussian blue was assessed in rabbits.The test chemical was introduced into the eyes by tattooing into the corneas of rabbits. Tattooing the corneas of rabbits with Prussian Blue led topermanent coloration of the corneas, but did not cause any irritation.

Hence,Prussian Blue can be considered to be not irritating to rabbit eyes.