Share:

Enzyme Activity Assay Kit (LDH)

Colorimetric assay kit measuring LDH enzyme activity in cell lysates and serum samples at 492 nm. Contains substrate, dye and standards as prepared diagnostic reagents under HTS 3822.19.00. For cell biology and clinical chemistry labs.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
๐Ÿ‡จ๐Ÿ‡ณChinaFree+10.0%10%
๐Ÿ‡ฒ๐Ÿ‡ฝMexicoFree+10.0%10%
๐Ÿ‡จ๐Ÿ‡ฆCanadaFree+10.0%10%
๐Ÿ‡ฉ๐Ÿ‡ชGermanyFree+10.0%10%
๐Ÿ‡ฏ๐Ÿ‡ตJapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3822.12.00Same rate: 10%

If paper-based spot test

Simple colorimetric spot tests on paper backing use specific backing subheading.

3006.50.00Same rate: 10%

If cardiac enzyme diagnostic panel

Validated cardiac marker panels for clinical diagnosis classify under pharmaceutical reagents.

3824.99Higher: 15% vs 10%

If general analytical reagent

Enzyme substrates not specifically diagnostic classify as prepared organic chemical reagents.

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

โ€ข Include linear range and enzyme unit definition used

โ€ข Declare substrate stability and reaction kinetics data

โ€ข Provide interference testing results for common sample matrix components

Related Products under HTS 3822.19.00

ELISA Test Kit for Human Insulin

A complete enzyme-linked immunosorbent assay (ELISA) kit designed for the quantitative detection of human insulin in serum or plasma samples. This prepared diagnostic reagent kit falls under HTS 3822.19.00 as it contains multiple reagents on a backing (microplate) for laboratory use in diagnosing metabolic disorders. It is not a product of heading 3006 as it is intended for research and clinical lab analysis.

COVID-19 IgG/IgM Rapid Test Cassette

Lateral flow immunoassay cassette for detecting SARS-CoV-2 IgG and IgM antibodies in human serum, plasma or whole blood. This prepared diagnostic reagent on a backing qualifies for HTS 3822.19.00 as a laboratory test kit containing antibodies, buffers and detection reagents. Used in clinical labs for serological screening.

Luminex Multiplex Bead-Based Assay Kit

Magnetic microsphere-based assay kit containing color-coded beads conjugated with capture antibodies for simultaneous detection of multiple cytokines in biological samples. Classified under HTS 3822.19.00 as prepared laboratory reagents in kit form for flow cytometry analysis. Essential for immunology research laboratories.

qPCR Viral RNA Detection Master Mix

Ready-to-use quantitative PCR master mix containing primers, probes, enzymes and buffers optimized for SARS-CoV-2 RNA detection. This prepared laboratory reagent qualifies under HTS 3822.19.00 for molecular diagnostic applications. Supplied in kit form with positive/negative controls.

Cell Culture Contamination Detection Kit

PCR-based detection kit for common cell culture contaminants including mycoplasma, bacteria and fungi species. Contains extraction reagents, master mix and species-specific primers on disc backing. HTS 3822.19.00 classification for laboratory quality control reagents.

Hormone Panel ELISA Kit (TSH/T4/T3)

Three-in-one ELISA kit measuring TSH, Free T4 and T3 hormones simultaneously for thyroid function screening. Contains coated microplates, conjugates, substrates and standards as prepared diagnostic reagents under HTS 3822.19.00. For endocrine laboratory testing.