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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

In an acute oral and in an acute dermal toxicity study the LD50 was determined to be >2000 mg/kg bw. 

Key value for chemical safety assessment

Acute toxicity: via oral route

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
LD50
Value:
2 000 mg/kg bw

Acute toxicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Acute toxicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
LD50
Value:
2 000 mg/kg bw

Additional information

Acute oral:


Ten male and ten female rats received a single dose of 2000 mg/kg bw. No deaths and no signs of toxicity were observed. 


The result of the study was obtained from ELINCS notification 91-06-0295-00 (10-year rule). Information from migrated NONS file, as per inquiry number 06-2119971773-26-0000, permission to refer granted by ECHA.


Acute dermal:


MDI/CHA was administered by dermal application, to five rats of each sex, at 2000 mg/kg body weight. No animals died during the study.


The treated skin surface of the animals showed spots with crusts in 2 females on day 8 and 1 female on day 15. All animals showed body weight gain over the study period. No abnormalities were found at macroscopic post mortem examination of the animals.

Justification for classification or non-classification

Based on the results, MDI/CHA does not have to be classified for acute oral and acute dermal toxicity according to Regulation (EC) No 1272/2008 and its amendments.