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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Eye irritation

Currently viewing:

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: Prediction report
Title:
R: QSAR Toolbox 2.3.0.1132 prediction for MMAS read across evaluation for 99-59-2
Author:
Sustainability Support Services (Europe) AB
Year:
2012
Bibliographic source:
QSAR Toolbox Version 2.3

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: estimated data
Principles of method if other than guideline:
QSAR prediction is done using QSAR Toolbox Version 2.3
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
5-nitro-o-anisidine
EC Number:
202-770-5
EC Name:
5-nitro-o-anisidine
Cas Number:
99-59-2
Molecular formula:
C7H8N2O3
IUPAC Name:
2-methoxy-5-nitroaniline
Details on test material:
SMILES:c1(OC)c(N)cc(N(=O)=O)cc1

Test animals / tissue source

Species:
rabbit
Strain:
not specified

Test system

Vehicle:
not specified
Controls:
not specified
Duration of treatment / exposure:
1-3 days
Number of animals or in vitro replicates:
3,4,6

Results and discussion

In vivo

Results
Irritation parameter:
other: MMAS
Basis:
mean
Score:
24.5
Reversibility:
not specified

Any other information on results incl. tables






The prediction was based on dataset comprised from the following descriptors: MMAS
Estimation method: Taking average value from the 6 nearest neighbours
Domain logical expression:Result: In Domain

((("a" and ("b" and ( not "c") ) ) and "d" ) and ("e" and "f" ) )

Domain logical expression index: "a"

Similarity boundary:Target: c1(OC)c(N)cc(N(=O)=O)cc1
Threshold=50%,
Dice(Atom pairs)

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as No alert found by Protein binding by OECD

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Acetates OR Alkyl halides OR Allyl acetates and related chemicals OR beta-Halo ethers OR Epoxides OR MA: Direct Acylation Involving a Leaving group OR MA: Epoxides and Related Chemicals OR MA: Polarised Alkenes OR MA: SN2 reaction at sp3 carbon atom OR Mechanistic Domain: Acylation OR Mechanistic Domain: Michael addition OR Mechanistic Domain: SN2 OR Polarised alkene - esters by Protein binding by OECD

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as No superfragment by Superfragments

Domain logical expression index: "e"

Parametric boundary:The target chemical should have a value of log Kow which is >= 1.52

Domain logical expression index: "f"

Parametric boundary:The target chemical should have a value of log Kow which is <= 1.94

Applicant's summary and conclusion

Interpretation of results:
slightly irritating
Remarks:
Migrated information 24.5 Criteria used for interpretation of results: EU
Conclusions:
The predicted data for 5-nitro-o-anisidine, the MMAS value is estimated to be 24.5 on rabbit. based on this value it can be conduclied that 5-nitro-o-anisidine is slightly irritating to eyes.
Executive summary:

The predicted data for 5-nitro-o-anisidine, the MMAS value is estimated to be 24.5 on rabbit. based on this value it can be conduclied that 5-nitro-o-anisidine is slightly irritating to eyes.