main component 1 (isomer 1): 2-{6-fluoro-4-[3-(2,5-disulfo-phenylazo)-4-hydroxy-2-sulfonapht-7-ylamino]-1,3,5-triazin-2-ylamino}-3-{6-fluoro-4-[3-(1,5-disulfonaphth-2-ylazo)-4-hydroxy-2-sulfonaphth-7-ylamino]-1,3,5-triazin-2-ylamino}-propane sodium salt;main component 1 (isomer 2): 2-{6-fluoro-4-[3-(2,5-disulfo-phenylazo)-4-hydroxy-2-sulfonaphth-7-ylamino]-1,3,5-triazin-2-ylamino}-3-{6-fluoro-4-[3-(2,5-disulfo-phenylazo)-4-hydroxy-2-sulfonaphth-7-ylamino]-1,3,5-triazin-2-ylamino}-propane sodium salt;main component 2: 2,3-bis-{6-fluoro-4-[3-(2,5-disulfo-phenylazo)-4-hydroxy-2-sulfonaphth-7-ylamino]-1,3,5-triazin-2-ylamino}-propane sodium salt;main component 3: 2,3-bis-{6-fluoro-4-[3-(1,5-disulfonaphth-2-ylazo)-4-hydroxy-2-sulfonaphth-7-ylamino]-1,3,5-triazin-2-ylamino}-propane sodium salt

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

other: Expert statement

Adequacy of study:

key study

Study period:

18 September 2009

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

no guideline required

Principles of method if other than guideline:

Expert statement

GLP compliance:

no

Sample tested:

other: Chemical structure

Parameter:

other: oxygen bonding with sulphur

Remarks on result:

other: oxygen is bonded to sulphur and because the subunit (sodium benzenesulfonate) is not classified to be oxidizing

EXPERT STATEMENT:

Under the study 637661 the oxidizing properties of FAT 40557/A were evaluated based on the molecular structure of the test item.

According to the UN recommendations on the Transport of Dangerous Goods (Orange Book, 3rd edition, 1999), the classification procedure using experimental testing need not to be applied for organic compounds if the compound contains oxygen, fluorine or chlorine and these elements are chemically bonded only to carbon and hydrogen. FAT 40557/A contains oxygen which is bonded to sulphur.

Further evaluation has been done by detailing the molecule in small subunits for which a classification with regard to oxidizing properties already exists. The subunit was: sodium benzenesulfonate. This substance is not classified to be oxidizing. Based on this evaluation, FAT 40557/A is considered to be non-oxidizing and therefore is not to be tested experimentally for the classification under division 5.1 as oxidizing substance. Thus, it can be concluded beyond a reasonable doubt that FAT 40557/A is not capable of causing fire or enhancing the risk of fire when in contact with combustible material.

Interpretation of results:

GHS criteria not met

Conclusions:

Based on the fact that oxygen is bonded to sulphur and that the subunit (sodium benzenesulfonate) is not classified to be oxidizing, it is concluded in an expert statement that the test substance is non-oxidising.

Executive summary:

An expert statement was made stating that, because oxygen is bonded to sulphur and because the subunit (sodium benzenesulfonate) is not classified to be oxidizing, it is concluded that the test substance is incapable of causing fire or enhance the risk of fire when in contact with combustible material.

Description of key information

Based on expert statements were made stating that the test substance is not oxidizing.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

Two expert statement were made stating that, because the oxygen balance is negative (RCC 1997), oxygen is bound to sulphur (Harlan 2009) and the subunit (sodium benzenesulfonate) is not classified to be oxidizing (Harlan 2009), it can be concluded beyond a reasonable doubt that the test substance is not capable of causing fire or enhancing the risk of fire when in contact with combustible material.

Justification for classification or non-classification

The test substance has been considered to be non-oxidising based on the expert statement, hence does not warrant classification according to the EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.08.