INDEX:
Samples Acceptable for Deposit
Benefits to Sample Contributors
Terms and Conditions of the Deposit Services
Procedure for Samples Deposit
Sample Manipulation Procedure

MDPI accepts all compounds, whether they are new or old, published or unpublished (but fully characterized). Even if you have only one interesting chemical or biochemical compound, you can make it available worldwide immediately at a reasonable price by registering (free of charge) the samples into the MDPI database. You may be asked to deposit one unit amount at MDPI as specimen. Catalysts and Enzymes are also acceptable for deposit and distribution.

Postage for samples delivery to MDPI Sustainability Foundation in Switzerland can be paid by MDPI. However, please contact MDPI first.

The practical handling of a compound, such as packaging, storage, partition and consequently the application as well as its information manipulation as an entry into a database, is very expensive. Therefore, all compounds submitted should be of high quality and characterized as fully as possible with relevant physicochemical, particularly spectroscopic data. Microanalyses or mass spectra should be included whenever possible. Preferably all these data should be fully presented in the corresponding publication in a journal. Any available GC, HPLC, flash chromatography and TLC data should be given there.

 Compounds should not be commercially readily available as those found in the Fluka or Aldrich catalogues for a normal price. However, those compounds that are in principle commercially available, but only in very small quantities, are also acceptable. Synthetic composite and polymeric samples are also suitable for submission. At the moment restrictions are made on the collected compounds: they should be reasonably stable at room temperature, as pure as specified, not hazardous and preferably in solid form.

The amount of each compound should be within 100mg-100g. Smaller amounts are also acceptable

 2. Even if you have only one interesting chemical or biochemical compound, you can quickly make it available worldwide immediately at a reasonable price by registering (free of charge) the compound or the enzyme into the MDPI database.

 3. You may also deposit all the old compounds in the MDPI Sustainability Foundation if you do not have a place to store them.

 4. All the transportation charges will be paid by MDPI.

 5. Chemists help each other by contributing not only chemical information, but also chemical substances. Then if you are an interested reader of a published paper, you do not need to prepare the compounds yourself. You may obtain the samples from MDPI quickly at a nominal cost, saving time and money.

 6. MDPI may also purchase your compound collection and pay postage for delivery to MDPI Sustainability Foundation in Switzerland in cash immediately.

 7. The prices of the samples distributed by MDPI may be recommended by the contributors. The prices should be lower than the costs required if a user were to prepare these compounds according to the literature.

 8. The remaining net profits of the MDPI sample services will be used to fund academic activities (conferences, an MDPI prize, etc.).

The submission of compounds structure and other data for publication in MDPI database and the submission of compound samples for storage and exchange are carried out on a fully voluntary basis on the part of the contributor. By accepting and registering the chemical species (compounds), MDPI acquires the rights of manipulation of that amount of sample for exchange.

Contributors should obtain any necessary authority to submit the compounds (either in part or all of the samples). The authors accept full responsibility for the factual accuracy of the data regarding the submitted samples.

Contributors should maintain the quality as high as possible or as high as clearly specified.

The containers must be properly labeled by attaching the compound abstract directly onto the container. At the very least your own compound ID code should be given on the label, if the compound abstract list is supplied together with the compounds.

Avoid using too large a container for only a small amount. Primary receptacles such as vials include those of glass or plastic. They should be fitted with a skirted stopper or a screw cap and reinforced with adhesive tape. An outer packing of sufficient strength should be used to ensure that the package will withstand the stresses of normal handling during transit and will not be damaged by accidental dropping, crushing, etc. Both the outer container and outer wrapping must bear the name and address of the sender and the recipient (MDPI). They should be labeled "research sample". Packages should also carry the internationally recognized green customs label, as well as any labels required by the relevant national government regulations, and should be accompanied by any documentation required by such regulations. Carrier or freight agents and/or postal authorities can advise about these.

All the samples together with their Compound Abstracts (printed sheets or/and a disk) should be sent directly to the MDPI Sustainability Foundation in Switzerland:

For purchased compounds, the sample contributor will receive the payment within 4 weeks (Please provide detailed bank address and bank account number).