Metalaxyl (S)-enantiomer

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com

Metalaxyl (S)-enantiomer is the S-enantiomer of the widely used acetylalanine fungicide― metalaxyl. A systemic pesticide, it targets the RNA polymerase complex I and inhibits the synthesis of ribosomal RNA. It shows protective and curative abilities after its absorption through roots, stalks, and leaves.
As per Regulation (EC) No. 1107/2009, repealing directive 91/414/EEC, metalaxyl is approved for use as a plant protection agent in the European Union. The Reg. (EU) 2017/1164 sets a maximum residue limit (MRL) of 0.7 mg/kg and 0.01 mg/kg for the presence of metalaxyl in fresh/frozen fruits and tree nuts respectively, considering other mixtures of its constituent isomers including metalaxyl-M (sum of isomers). It is also included for monitoring in the Multiannual Control Programme for Pesticides Residues (MACP), run within the EU and EFTA for products of plant origin.

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques.

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

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