Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 243-072-0
CAS number: 19438-60-9
The substance is classified as both a skin and respiratory sensitiser in
accordance with the requirements of Directive 67/548/EEC (DSD) and
Regulation 1272/2008 (CLP).
As such, sensitisation is to be regarded as the most sensitive end-point
and no DNEL can be derived due to the lack of dose-response data. A
qualitative risk characterisation is therefore necessary and this
is detailed in the accompanying CSR.
Availability of a national Occupational Exposure Limit Value (OEL)
No exposure limits are currently in place within EU Member States for
the registered substance, 4 -MHHPA, although limits exist for the
generic substance (no specific isomer, CAS 25550 -51 -0).
Users of this substance must examine the details of the Chemical Safety
Report (CSR) and follow the recommendations contained therein to ensure
the best protection of workers potentially exposed to the substance.
Users must ensure that they are in compliance with any state or local
requirements concerning use of the substance and protection of the
Since no exposure of the general population is intended or anticipated,
no DNELs have been derived.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again