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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 Aug - 03 Sep 1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1981
Report date:
1981

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not specified
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo-, ester with phenyl(2,3,4-trihydroxyphenyl)methanone
EC Number:
270-931-7
EC Name:
1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo-, ester with phenyl(2,3,4-trihydroxyphenyl)methanone
Cas Number:
68510-93-0
Molecular formula:
all potential esters of C10HH5O3N2SCl and C13H10O4
IUPAC Name:
3-benzoyl-2-hydroxy-6-({[5-oxo-6-(λ⁵-diazynylidene)-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl 5-oxo-6-(λ⁵-diazynylidene)-5,6-dihydronaphthalene-1-sulfonate; 4-benzoyl-2,3-bis({[5-oxo-6-(λ⁵-diazynylidene)-5,6-dihydronaphthalen-1-yl]sulfonyl}oxy)phenyl 5-oxo-6-(λ⁵-diazynylidene)-5,6-dihydronaphthalene-1-sulfonate; 4-benzoyl-2,3-dihydroxyphenyl 5-oxo-6-(λ⁵-diazynylidene)-5,6-dihydronaphthalene-1-sulfonate
Test material form:
solid
Specific details on test material used for the study:
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: protected from light

Test animals

Species:
rat
Strain:
Wistar
Remarks:
Hoe: WISKf (SPF71)
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: own breeding (Hoechst Aktiengesellschaft, Pharma Forschung, Toxikologie, Germany)
- Females nulliparous and non-pregnant: not specified
- Weight at study initiation: 190 - 201 g
- Fasting period before study: animals were fasted for 16 h prior to and 2 h after administration
- Housing: group caged in plastic cages, on softwood granulate
- Diet: ALTROMIN 1324 (Altromin GmbH, Lage/Lippe, Germany), ad libitum
- Water: tap water, ad libitum

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: starch solution
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 25 %
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
10 females
Control animals:
no
Remarks:
not required
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: immediately after gavage, weekly weighing
- Necropsy of survivors performed: yes

Results and discussion

Effect levels
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
none
Clinical signs:
other: Feces discolored (yellow), 24 h after application. 48 h after application no discolored feces were observed.
Gross pathology:
no organ alterations

Applicant's summary and conclusion

Interpretation of results:
other: CLP/ EU GHS criteria not met, no classification required according to Regulation (EC) No 1272/2008
Conclusions:
CLP: not classified