Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Custom Peptide Synthesis

Product Lines

Sigma Custom Products has developed a proprietary custom peptide synthesis platform utilizing Fmoc chemistry, providing a solution to enhance peptide screening applications. Large numbers of peptides, in 96-well arrays, are delivered quickly and affordably. MALDI-TOF mass spec is performed on 100% of the samples.


PEPscreen<sup>®</sup> calculator
PEPscreen® Library Design Tool

Product Specifications:

  • Low cost per peptide
  • Yield: ~0.5-2mg
  • Length: 2-20 amino acids
  • Comprehensive Modification Offering
  • MALDI-ToF Mass Spectrometry on 100% of peptides
  • Peptides supplied dried and in 96-well tube rack format
  • Dispatch: approximately 7 business days
  • Minimum order size is 24 peptides

Internal Testing of Synthesis Platform:

  • We routinely run tests of this platform to ensure the quality of the product.
  • Average Crude Purity of 10mers: ~86%
  • Average Crude Purity of 15mers: ~73%
  • Average Crude Purity of 20mers: ~61%
  • Purity of ACP peptide at different positions on a 96-well plate: ~92% +/- 2%

Technical Resources:

Application Data Now Available!
The following application data was received from customers using our PEPscreen® Technology: