Mass Spectrometry Protein Standard Mix
Certified mixture of 48 proteins at femtogram/attomole levels for LC-MS/MS instrument calibration and sensitivity testing. Certified reference material under HTS 3822.19.0080.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +10.0% | 10% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If human/plasma protein fractions
Source proteins from human origin may classify under biologicals.
If non-certified QC materials
Uncertainty-certified standards vs routine quality controls.
If spectrometer calibration solutions
Reference materials for analytical instruments classify as parts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include digestion protocol and LC gradient recommendations
• Declare peptide mass accuracy and digestion efficiency specifications
• Lyophilized standards require reconstitution stability data
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