How to Order

IsoSciences offers a large selection of stable isotope-labeled vitamins, steroids, metabolites and other molecules of chemical and biological interest.

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 »

Please search our list of products and place products in your shopping cart for a quote and pricing.

Order Now

Order Products in 4 Easy Steps:

  1. Search & order – search for products and add them to your Shopping Cart. Search for a product using the comprehensive online search
  2. Add item to your Shopping Cart
  3. View Cart & enter your payment details (Credit Card and/or Purchase Order Number)
  4. Click ‘Submit Order’

New Customers:
Place an order with IsoSciences online by creating a new account. Register as a new customer

Returning Customers:
If you have an existing account please just sign in. Customer Login

Ordering Methods:

  1. Online Shopping Cart
  2. By phone: 610-337-3762
  3. By fax: 610-337-3782
  4. By email:

Please include the following on all orders:

  1. Recipient’s Name
  2. Telephone Number
  3. Email Address
  4. Preferred Method of Payment (Credit Card and/or Purchase Order Number)

Request a Quote

To Request a Quote, please go to Products Categories and select a product and click on the Request Bulk and Custom Quantities. To add multiple products to your request, continue shopping and update your product list. Then submit your Request a Quote. We will provide a quote within 48 hours. If you can’t find what you’re looking for, please fill out the Request a Quote Form.

Request a Quote in 3 Easy Steps:

  1. Please Select a Product using the product navigation or Product Search above.
  2. Select a quantity and click the Request Bulk and Custom Quantities button.
  3. Click the “Submit Quote Request” button to send your request to customer service.

Note: Request a quote with IsoSciences online by using your website profile. If you have an existing account please just sign in.

Request a Quote

Controlled Substances

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.

– Check

– Bank Transfer

– 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 contact our customer service as to pricing and availability. Contact Us Today!

Custom synthesis:

If you do not find what you need in the catalog, please contact us and
we can provide a quote for the custom synthesis compound that you do require. Custom Synthesis Services

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 during transfer.


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