Registration Dossier
Registration Dossier
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EC number: 201-210-7 | CAS number: 79-50-5
Oxidising properties
Administrative data
Link to relevant study record(s)
Description of key information
Applying the internationally recognized UN Recommendation criteria, RS-Pantolactone is found to be non-oxidizing and therefore is not to be tested experimentally for the classification under division 5.1 as oxidizing substances. Thus it can be concluded beyond a reasonable doubt that RS-Pantolactone is not capable of causing fire or enhancing the risk of fire when in contact with combustible material.
Key value for chemical safety assessment
- Oxidising properties:
- no
Additional information
The test item RS-Pantolactone is an organic compound which contains oxygen. Therefore the second criterion of the Orange Book has to be applied. RS-Pantolactone contains oxygen and this element is chemically bonded only to carbogen or hydrogen. Therefore the classification procedure using experimental testing need not be applied.
Additionally, it can be stated that the oxygen balance of RS-Pantolactone 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 CxHyOzis the test item.
Justification for classification or non-classification
The test item RS-Pantolactone is an organic compound which contains oxygen. Therefore the second criterion of the Orange Book has to be applied. RS-Pantolactone contains oxygen and this element is chemically bonded only to carbogen or hydrogen. Therefore the classification procedure using experimental testing need not be applied.
Additionally, it can be stated that the oxygen balance of RS-Pantolactone 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 CxHyOzis the test item.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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