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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
short-term repeated dose toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1971
Report date:
1971

Materials and methods

Principles of method if other than guideline:
Method: other: Standard CIVO procedure, TNO, Zeist, The Netherlands
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Tosylchloramide sodium
EC Number:
204-854-7
EC Name:
Tosylchloramide sodium
Cas Number:
127-65-1
Molecular formula:
(C7H4SO2NCl)Na
IUPAC Name:
sodium chloro(4-methylbenzenesulfonyl)azanide
Details on test material:
Test substance: Halamid
Appearance: White crystalline powder
Purity: at least 99.8%

Test animals

Species:
rabbit
Strain:
New Zealand White
Sex:
male/female

Administration / exposure

Type of coverage:
open
Vehicle:
water
Details on exposure:
Route of Administration: dermal
Analytical verification of doses or concentrations:
no
Duration of treatment / exposure:
21 days
Frequency of treatment:
Five times a week for 6-8 hours exposure
Doses / concentrations
Remarks:
Doses / Concentrations:
25, 75 and 225 mg/kg bw/day
Basis:
nominal per unit body weight
No. of animals per sex per dose:
2
Control animals:
yes
Details on study design:
Post-exposure period: no

Results and discussion

Effect levels

open allclose all
Key result
Dose descriptor:
NOEL
Effect level:
25 mg/kg bw/day
Based on:
not specified
Sex:
male/female
Remarks on result:
other: Effects on skin
Key result
Dose descriptor:
NOEL
Effect level:
225 mg/kg bw/day (nominal)
Based on:
not specified
Sex:
male
Basis for effect level:
clinical signs
Remarks on result:
other: No systemic effects observed up to 225 mg/kg bw/day.
Dose descriptor:
LOEL
Effect level:
75 mg/kg bw/day
Based on:
not specified
Sex:
male/female
Remarks on result:
other: Effects on skin

Target system / organ toxicity

Critical effects observed:
not specified

Any other information on results incl. tables

NOAEL (NOEL), LOAEL (LOEL): = 25 mg/kg bw, 75 mg/kg bw


ACTUAL DOSE RECEIVED BY DOSE LEVEL BY SEX
- Time of death: no mortality or abnormalities observed.
- Number of deaths at each dose: -


TOXIC RESPONSE/EFFECTS BY DOSE LEVEL: 
- Mortality and time to death: after 21 days 
- Clinical signs: at 225 mg/kg bw distinct skin lesions, scaliness, coriaceousness, haemorrhages, fissuring and sloughing was found. A slight scaliness and very light coriaceousness was observed at 75 mg/kg bw. All experimental animals showed a yellowish discolouration of the fur. No systemic effects observed up to 225 mg/kg bw/day.

- Body weight gain: not significantly adversely affected
- Food/water consumption: not significantly adversely affected.
- Clinical chemistry: -
- Haematology: not significantly adversely affected.
- Urinalysis: not significantly adversely affected.
- Organ weights: not significantly adversely affected.
- Gross pathology: No relevant pathology was found. 
- Histopathology: No relevant abnormalities found. 
- Other: - 


STATISTICAL RESULTS: not described

Applicant's summary and conclusion

Conclusions:
The No Observed Effect Level (NOEL) for systemic effects is 225 mg/kg bw/day for effects on the skin the NOEL is 25 mg/kg bw/day.
Executive summary:

A sub acute 21 -day dermal toxicity study was performed at TNO, The Netherlands with albino rabbits. Repeated dermal application of Tosylchloramide sodium, trihydrate at a dose of 225 mg/kg bw/day resulted in distinct skin lesions consiting of scaliness, coriaceousness, haemorrhages, fissuring and sloughing. A slight scaliness and very slight coriaceousness of the exposed skin was seen in the animals of the group treated with 75 mg/kg bw/day. No distinct skin lesions were observed in the lowest dose group 25 mg/kg bw/day. All experimental animals showed a yellowish discolouration of the fur as a result of the application of Tosylchloramide sodium, trihydrate. General appearmce and behaviour, growth, food and water consumption, blood and urine composition, and organ weights were not adversely affected by the repeated dermal application Tosylchloramide sodium, trihydrate. Histologically, distinct changes of the treated skin were found in the two highest dose groups.

The No Observed Effect Level (NOEL) for systemic effects is 225 mg/kg bw/day for effects on the skin the NOEL is 25 mg/kg bw/day.