4-Hydroxy-3,5-dimethylbenzonitrile

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising properties

Type of information:

other: expert statement

Adequacy of study:

supporting study

Study period:

11 March 2004

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Well documented expert statement based on the UN Recommendations on the Transport of Dangerous Goods (Orange Book, 3rd edition, 1999)

Qualifier:

according to guideline

Guideline:

other: UN Recommendations on the Transport of Dangerous Goods (Orange Book, 3rd edition, 1999)

Deviations:

no

GLP compliance:

no

According to the criteria as described in the mentioned UN document:

- the classification procedure using experimental testing need not be applied for organic compounds if the compound does not contain oxygen, fluorine or chlorine.

Since T002251 contains oxygen, the second criterion of the Orange Book UN Recommendations has to be applied:

-the classification procedure using experimental testing need not be applied for organic compounds if the compound contains oxygen, fluorine or chlorine AND these elements are chemically bonded only to carbon and hydrogen. This second criterion is fulfilled for T002251.

Additionally, it can be stated that the oxygen balance of T002251 is negative as calculated based on the UN Recommendations on the Transport of Dangerous Goods. In principle this means, that there is a surplus of carbon atoms for a complete reaction according to the following reaction scheme: CxHyOz + [ x + (y/4) – (z/2) ] O2 → x CO2 + (y/2) H2O where CxHyOz is the test item.

Interpretation of results:

GHS criteria not met

Conclusions:

Applying the internationally recognised UN Recommendation criteria, T002251 is found to be non-oxidising and therefore is not to be tested experimentally for the classification under division 5.1 as oxidising substances. Thus it can be concluded beyond a reasonable doubt that T002251 is not capable of causing fire or enhancing the risk of fire when in contact with combustible material.

Description of key information

The substance T002251 does not have oxidising properties in a desktop assessment based on  the UN Recommendations on the Transport of Dangerous Goods (Orange Book, 3rd edition, 1999) (K2, Lindemann M, 2004).

Key value for chemical safety assessment

Oxidising properties:

no

Justification for classification or non-classification

Based on its molecular structure the substance T002251does not have oxidising properties and does not need to be classified as an oxidising substance according to the CLP regulation.