Product Highlights
Tenuazonic acid
Tenuazonic acid is a fungal secondary metabolite that produced by a number of Alternaria species and found as a natural contaminant in food and feed samples. Tenuazonic acid shows cytotoxic, antibacterial, antiviral and phytotoxic properties and is considered acutely toxic Alternaria toxin. Because of the widespread occurrence of Alternaria spp. on plants used for food production, the tenuazonic acid can often be detected in various foods such as baby food, grain-based products, tomato-based...
Flufenacet Metabolite
Are you looking for new standards for metabolites of active ingredients of pesticides? This week ASCA GmbH has successfully synthesized the metabolite Flufenacet sulfonic acid and can offer it as a native as well as stable isotopically labelled standard. Flufenacet sulfonic acid sodium salt Flufenacet sulfonic acid sodium salt-d7 Synonyms: Flufenacet Metabolite, FOE suflonic acid, Flufenacet Metabolite M2 Synonyms: Flufenacet Metabolite ESA-d7, FOE suflonic acid-d7, Flufenacet Metabolite M2-d7...
Zearalenone standards
For your investigations and analysis of fusarium toxins we can offer the following native and isotopically labelled standards: [gview file="http://asca-berlin.de/files/wp-content/uploads/Zearalenon-Standards.pdf"] All substances are available from stock. We look forward to your inquiry.
Terbuthylazine and its metabolites
Terbuthylazine is a selective herbicide. Chemically, it is compared with atrazine and simazine and belongs to the group of chlorotriazines. Terbuthylazine as well as three major degradation products and several secondary metabolites are frequently detected in groundwater. According to the Bio-Mineral Water Directive, terbuthylazine and its metabolites terbuthylazine-desethyl, CGA 324007 and CGA 373464 must be subjected to residue analysis for organic mineral water, organic spring water and...
Thiacloprid amide
Thiacloprid is an active ingredient and is acutely toxic to insects. It acts as an agonist of the nicotinic acetylcholine receptors (nAChRs) in the central nervous system. In general four metabolites (M02, M30, M34 and M37) were detected in the residue analysis. In addition, studies have shown that the thiacloprid metabolites are persistent in soil and more water-soluble than the active ingredient itself. As a precaution, the metabolite M02 (Thiacloprid amide) is also classified as relevant...
Residues of pesticides are undesirable
In addition to the actual active ingredients of pesticides (PPPs: plant protection products), their transformation products (metabolites), which are no longer active in the sense of the parent substance, are increasingly becoming the focus of water supply companies, food and beverage manufacturers and monitoring authorities. These degradation and reaction products, also referred to as non-relevant metabolites (nrM), are of particular interest to consumer health protection as they are often...
Alternaria-Toxins
Alternaria toxins are characterized by a very wide range. The literature already describes more than 70 different mycotoxins. Among them, alternariol (AOH), alternariol monomethyl ether (AME), tenuazonic acid (TEA), altertoxins (ATX), tentoxin (TEN), altenuene (ALT). These mycotoxins are known to be detected in grains and grain-based products, tomatoes and tomato-based products, sunflower seeds and sunflower oil, fruit and fruit products including fruit juices, and in beer and wine. Alternaria...
Ergometrine and Ergometrinine
The primary ergot alkaloids ergometrine and ergometrinine are highly toxic mycotoxins, which naturally occur in various types of grains (i.e., rye, wheat, rice), as well as in cereals and other cereal products. For this reason, alkaloids have gained increasing importance for food safety over the last years. The application of HPLC-MS/MS for the analysis of ergot alkaloids in food presupposes the availability of isotopically labelled internal standards. In cooperation with the Federal Institute...
Benzotriazoles
Phenolic benzotriazoles are widely applied as UV stabilizers in plastics and to some extent also in cosmetics and sun screens. Many phenolic benzotriazoles are highly lipophilic compounds and exhibit a high sorption and bioaccumulation potential. First assessment of the environmental fate in aquatic systems by degradation experiments according to OECD 308 indicated that phenolic benzotriazoles are highly persistent compounds which are mainly sorbed to sediments and suspended particulate...
Azoxystrobin – the currently world´s leading agriculture fungicide
It is non-volatile and can be persistent in aerobic soils and water system. Azoxystrobin has a low mammalian toxicity, but has been classified as very toxic to aquatic organisms and its main metabolite R234886 as very harmful. We can provide you with the following compounds as a reference material for your quantitative determination of azoxystrobin residues. Azoxystrobin, CAS 131860-33-8 Item: 10048 Azoxystrobin-(cyanophenoxy-d4), Item: 20005 Azoxystrobin Metabolite R234886, CAS...