Customer Sevice

How to Order

IsoSciences, LLC specializes in the custom synthesis of stable isotope labeled compounds. We also offer a wide selection of products in our catalog

View our Product

Ordering Methods:

Order Online
By phone: 610-337-3762
By fax: 610-337-3782
By email:
Please include the following on all orders:

  • Recipient name
  • Telephone
  • Email
  • Preferred method of payment

Controlled Substance

IsoSciences is approved by the DEA (Drug Enforcement Agency) to manufacture and ship all drug classes (I-V) both domestically and internationally.

Shipping Within United States

– We must have a current DEA license (Form DEA-223) on file prior to shipping your order.

– Your DEA license may be sent to us at the time of your order. Your order will only be shipped to the address specified on your DEA license.

Exporting Controlled Substances from the United States

Orders for materials classified as controlled substances in the United States (e.g., anabolic steroids) must include the following documents prior to export:

Letter of Permission (in English): An official letter of permission must accompany your order and must state the following:

  • Permission for you to receive controlled substances.
  • Approval for either the current order only or approval for current AND future orders.
  • Indicate the compound you are ordering and the amount.

Declaration Letter (in English): A letter from your company must be provided declaring that the substance you are ordering will not be re-exported and will only be used for scientific or medical use within the receiving country.

When we receive your order along with the above required documents, there will be a period of at least 15 days while the documentation is submitted to the DEA in the United States.

Shipping and handling charges will be added to your invoice. Charges are determined based on weight of package and destination. We ship exclusively Federal Express. There will be an additional charge of $60 (US) to prepare and process all the export documentation.

Payment methods:

Payment is due within 30 days of receipt of invoice.

  • Bank transfer
  • Check
  • Credit card (Visa, Master Card, American Express)

Large quantity discounts:

Compounds listed in the catalog may be ordered in large quantities at a discounted price. Please inquire as to pricing and availability.

Custom synthesis:

If you do not find what you need in the catalog, please contact us and
we can give you a quote on the custom synthesis of the compound that you do require.

Exact microbalance weighing of material:

Available for an additional fee. This ensures that your entire sample may be used for your critical assays without wasting any material.


All shipments are made via Federal Express overnight priority. Shipping charges depend upon location but are typically $25 for domestic (United States) shipping.[/fusion_text]