Methyl ethyl ketone oxime ‘MEKO’ also known as Butanone oxime (CAS number 96-29-7) is a substance that has been reclassified in UK and EU law as carcinogenic. Since 1st March 2022 this has resulted in mandatory labelling and classification of any products containing MEKO sold on the general market. The EU REACH has also restricted the sale of any products containing this substance to the general public. This is not currently the case under UK REACH and therefore the restriction on supply to the general public does not apply in the UK.
For more information about UK REACH visit UK REACH: UK REACH Explained (hse.gov.uk)