We offer premium grade reagents that are high-quality formulations of selected chemical modification reagents, specially characterized for applications where product integrity and risk minimization are paramount. The current menu of reagents offered in this premium format includes several popular crosslinkers and biotinylation reagents, and a reducing agent. The reagents are ideal for research projects that require long-term, consistent performance and an extra level of troubleshooting support afforded by robust chemical characterization and documentation.

  • High quality—identity and purity confirmed by several tests, including quantitative NMR
  • Product integrity—enhanced level of testing and characterization compared to standard grade
  • Lot retention—ample supply of past lots retained to help ensure future process testing
  • Change management—Change Control Notification (CCN) service
  • Consistent manufacturing—batch-specific manufacturirng documentation review

Comparison of specifications between premium and standard grade reagents

We manufacture all reagents to help ensure the high levels of overall product integrity, consistency, and performance for the intended research applications. The first four tests do not apply to all reagents, but they are used equally for both grades of reagent to which they are applicable.

Test parameterTest methodPremium gradeStandard grade
PurityQuantitative NMR using an internal standardYesYes
VisualColor assessmentYesYes
SolubilitySample dissolves at specified concentration in deionized water to yield a clear, colorless solutionYesYes
IdentityInfrared spectroscopyYesYes
Mass identityMass spectrometryYesNA
Water contentKarl Fischer titrationYesNA
Trace metalsInductively coupled plasma mass spectrometry (ICP-MS)YesNA
Elemental analysisCombustion analysis (values reported for C, H, N, O, and S)YesNA
Residual solvent analysisHeadspace gas chromatographyUpon requestNA

Bulk or custom product request

Need larger quantities of our protein labeling, crosslinking or modification reagents? We offer bulk and custom fill sizes.

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