Registration Dossier

Administrative data

Endpoint:
acute toxicity: inhalation
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: Predicted data
Title:
Estimation for LC50 for CAS 96-97-9
Author:
Sustainability Support Services (Europe) AB
Year:
2013
Bibliographic source:
QSAR Toolbox version 3.1

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 403 (Acute Inhalation Toxicity)
GLP compliance:
no
Test type:
standard acute method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): 5-nitrosalicylic acid
- Substance type: Organic
- Physical state: solid

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Administration / exposure

Route of administration:
inhalation: vapour
Type of inhalation exposure:
nose only
Vehicle:
not specified
Analytical verification of test atmosphere concentrations:
not specified
Duration of exposure:
4 h
No. of animals per sex per dose:
6 animals
Control animals:
not specified

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LC50
Effect level:
1 255 mg/m³ air
Based on:
test mat.
Exp. duration:
4 h

Any other information on results incl. tables






The prediction was based on dataset comprised from the following descriptors: LC50
Estimation method: Takes average value from the 5 nearest neighbours
Domain  logical expression:Result: In Domain

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

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Group 14 - Carbon C AND Group 15 - Nitrogen N AND Group 16 - Oxygen O by Chemical elements

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Group 14 - Carbon C AND Group 15 - Nitrogen N AND Group 16 - Oxygen O by Chemical elements

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Group 16 - Sulfur S OR Group 17 - Halogens Cl OR Group 17 - Halogens F OR Group 17 - Halogens F,Cl,Br,I,At by Chemical elements

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as Bioavailable by Lipinski Rule Oasis

Domain logical expression index: "e"

Similarity boundary:Target: C(=O)(O)c1c(O)ccc(N(=O)=O)c1
Threshold=10%,
Dice(Atom centered fragments)

Domain logical expression index: "f"

Parametric boundary:The target chemical should have a value of log Kow which is >= 2.36

Domain logical expression index: "g"

Parametric boundary:The target chemical should have a value of log Kow which is <= 4.37

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The 4 hrs acute inhalation median lethal concentration (LC50) of 5-nitrosalicylic acid in rat was found to be 1255mg/L.Acute toxicity of 5-nitrosalicylic acid to rat by the inhalation route indicates that 5-nitrosalicylic acid does not exhibits acute toxicity by the inhalative route within the doses mentioned.

Executive summary:

The 4 hrs acute inhalation median lethal concentration (LC50) of 5-nitrosalicylic acid in rat was found to be 1255mg/L.Acute toxicity of 5-nitrosalicylic acid to rat by the inhalation route indicates that 5-nitrosalicylic acid does not exhibits acute toxicity by the inhalative route within the doses mentioned.