Notes

Our company has been engaged in preparing isotope labelled agrochemicals (pesticides) and other compounds for over thirty years.

This list comprises the most frequently sold ¹⁴C-labelled pesticides. These compounds are the most widely used representatives of the various classes in this field but obviously, inquiries for other pesticides are also welcome.

There are several common names of these compounds, which vary depending on the country where they are applied. We use the common names given by the British Standard Institution.

Molar activities are usually set to the customer’s request and often reach 1.85 GBq/mM (50 mCi/ mM). Being these chemicals sensitive they are synthesized as custom preparation products; consequently each offer is individually submitted taking the quantity, requested molar activity, date of delivery, etc. into account.

Isotope labelled pesticides are delivered in dry ice or at natural temperature depending on the sensitivity of the labelled compound, but recommended to be stored at – 20 °C or below; the cooler the better.

There are three groups of the listed pesticides:

1st group: we have the compound of required purity in stock;
2nd group: we have the material in stock but it has to be purified;
3rd group: we have no material in stock so it has to be synthesized again.

Depending upon the availability and our manufacturing capacity the minimum quantity to be sold and the date of delivery change from time to time. For your preliminary information:

1st group: delivery within 1 – 2 week;
2nd group: delivery within 2 -3 weeks;
3rd group: delivery within 4 – 10 weeks, minimum quantity is 37 MBq.

As the current situation is changing continuously information about the required material (i.e. which group it belongs to) will be given upon inquiry.

Custom synthesis

We are ready to undertake synthesis of other compounds not listed in our catalogues. We are prepared to give quotation following your request. When inquiring please indicate the following required specifications, too:

• correct chemical or common name of the compounds (in case of more complicated molecules together with the formula);
• labelling isotope and position of labelling;
• required molar or specific activity;
• required activity;
• required form (net material or a solution - in the latter case the requested solvent and radiochemical concentration; requested packsize);
• whether you are able to supply synthesis route and/or protocols, references of technical literature, raw material or standard (final product and/or intermediates) analytical method (in general HPLC). All information provided by the cusotmers are handled as confidental. NDA is concluded upon customer’s reuest. Providing these results in significant reduce in price.

As a result of many years practice in this field experts of the Institute are at your disposal in answering technical questions (Synthesis Business) and issuing quotations (Commercial Department).