Custom Synthesis

Medical Isotopes, Inc. specializes in multi-step custom synthesis for pharmaceutical companies, government, research facilities and hospitals. With more than 40 years experience in custom synthesis, our experts will prepare your compound based upon your specifications and project needs.

  • Synthesis of labeled and unlabeled standards
  • Synthesis of intermediates
  • Metabolites synthesis/characterization
  • Synthetic route development
  • Full characterization by NMR, MS and HPLC

We are always happy to speak with you about your specific needs for your application; and confirm structure and labeling, purity and enrichment before we begin.

Please call 800-374-9513 or 603-635-2255, send a fax to 603-635-2448, e-mail us or use our inquiry form for custom synthesis requests.

Terms and Conditions


Product quotations noted as custom synthesis are subject to a 30% prepayment before synthesis can begin. If there is a cancellation by the customer for any reason, the Seller can request additional payment for time and materials spent up to the date of cancellation, should it exceed the 30% prepayment.

Delivery times:

Delivery times noted on Custom Synthesis are based on a best estimate and cannot always be exact as reaction times may vary. Seller will do their best to assure delivery time is met; however, order cancellation due to delivery date delay will not constitute reason for the return of the 30% down payment.

Special Interest Products

Special Interest Products with “Inquire” Pricing:

Please ask for a quotation for the following products listed below where “inquire” is listed for pricing. These products are usually available with a longer lead time than our other products. In some cases they are considered “Custom Synthesis” and sometimes they are available but with a longer delivery time and are not considered a “Custom Synthesis”. Please inquire for the quantity you would need.


Alphabetic Listing of Custom Synthesis Products

Amines: Chemical Amines
Catalog Number Product Name    
32002 (R)-Xanthoanthrafil Details Inquire
32003 (S)-Xanthoanthrafil Details Inquire
32000 rac Xanthoanthrafil Details Inquire
D32001 rac Xanthoanthrafil-d3 Details Inquire
32005 Xanthosine Details Inquire
32006 Xanthurenic Acid Details Inquire
D74953 2,6-Xylidine-d6 HCl Details Inquire
21026 N,N’-Bis(2,4-xylyl)formamidine Details Inquire
Anti-Cancer: Anti-cancer compounds
Catalog Number Product Name    
17777 Xanthomycin A Details Inquire
APIs and Pharmaceuticals: API Compounds
Catalog Number Product Name    
33052 Xantinol Nicotinate Details Inquire
Aromatics and Derivatives: Aromatic Compounds
Catalog Number Product Name    
32007 Xanthydrol Details Inquire
32009 XAV 939 Details Inquire
32010 Ximelagatran Nitrile Details Inquire
D32012 Xipamide-d6 Details Inquire
32014 XL518 Details Inquire
32013 (R)-XL518 Details Inquire
32015 Xylometazoline HCl Details Inquire
32016 3,4-Xylyl-6-phenylazo-D-ribitylamine Details Inquire
Carbohydrates and Derivatives: Carbohydrates and Derivatives Alphabetic Listing
Catalog Number Product Name    
32008 5’-Xanthylic Acid Disodium Salt Details Inquire
Chiral Reagents: Chiral Reagents Alphabetic Listing
Catalog Number Product Name    
D32004 Xanthophyll-d6 Details Inquire
Gases: All Gases
Catalog Number Product Name    
74796 Xenon 129 Details Inquire
74797 Xenon 131 Details Inquire
75400 Xenon-132 (gas) Details Inquire
74799 Xenon 136 Details Inquire
Heterocycles: Heterocyclic Compounds
Catalog Number Product Name    
100115 1,3,7,9-Xanthinium Perchlorate Details Inquire
27093 3-Hydroxy Xylazine Details Inquire
Other Research Compounds: Research Compounds
Catalog Number Product Name    
100114 Xaliproden Details Inquire
O100117 3-O-Xinafoyl Salmeterol Details Inquire
100118 XL 228 Details Inquire
100119 XY1 Details Inquire
D100120 Xylitol-d7 Details Inquire
C100123 ] XylitoC]Xylitol Details Inquire
C100124 ] XylitoC]Xylitol Details Inquire
C100125 ] XylitoC]Xylitol Details Inquire
100127 D-Xylo-2-Hexulosonic Acid Butyl Ester Details Inquire
100128 Xylobiose Details Inquire
100132 Xylohexaose Details Inquire
100131 Xylopentaose Details Inquire
C100134 D] XylosC]Xylose Details Inquire
C100135 D] XylosC]Xylose Details Inquire
C100136 D-2] XylosC2]Xylose Details Inquire
100130 Xylotetrose Details Inquire
100129 Xylotriose Details Inquire
100137 D-Xylulose 5-Phosphate Sodium Salt Details Inquire
Reference Standards: Labeled Reference Standards
Catalog Number Product Name    
C110598 m-Xylene-13C6 Details Inquire
Reference Standards: Unlabeled Reference Standards
Catalog Number Product Name    
32011 Xipamide Details Inquire
Sugars: Sugars Alphabetical Listing
Catalog Number Product Name    
C2106 D-Xylose-1-13C Details Inquire
D17826 D-Xylose-UL-d6 Details Inquire