Progesterone USP Reference Standard
High-purity progesterone reference standard used primarily as a hormone in pharmaceutical quality control. Falls under HTS 2937.90.90.00 as a natural hormone reproduced by synthesis, used primarily as a hormone. Essential for analytical and calibration purposes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for immunological blood-grouping use
Hormone reference standards for diagnostic immunological purposes classified in Chapter 30
If classified by steroid chemical structure
Steroid cyclic alcohols and derivatives may fall under heading 2932 if not primarily hormonal
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
• Provide USP certificate and intended use documentation for reference standard exemption considerations
• Ensure proper temperature-controlled shipping to maintain hormone stability
• Document as bulk chemical, not finished drug, to maintain Chapter 29 classification
Related Products under HTS 2937.90.90.00
Melatonin USP Powder
Pure melatonin powder, a synthetic pineal hormone used primarily for regulating sleep-wake cycles. It falls under HTS 2937.90.90.00 as a hormone derivative used primarily as a hormone for therapeutic purposes. This classification covers synthetic reproductions of natural hormones not specified elsewhere in heading 2937.
DHEA (Dehydroepiandrosterone) Micronized Powder
Micronized DHEA powder, a steroid hormone precursor produced by synthesis, used primarily for hormonal supplementation. Classified under HTS 2937.90.90.00 as a structural analogue of hormones used primarily for its hormonal effects. Excludes finished dosage forms.
Testosterone Base Powder
Synthetic testosterone base powder, a principal male hormone used primarily for hormone replacement therapy. Classified under HTS 2937.90.90.00 as a hormone reproduced by synthesis, excluding esterified forms specified elsewhere. Bulk form for pharmaceutical compounding.
Pregnenolone Acetate Powder
Pregnenolone acetate, a synthetic steroid hormone precursor used primarily for neurosteroid and hormonal effects. Falls under HTS 2937.90.90.00 as a hormone derivative used primarily as a hormone. Bulk powder for nutraceutical and pharmaceutical applications.
Oxytocin API Powder
Synthetic oxytocin active pharmaceutical ingredient (API) powder, a peptide hormone used primarily for uterine contraction and lactation. Classified under HTS 2937.90.90.00 as chain-modified polypeptide used primarily as a hormone. Bulk form excludes finished injectables.
Calcitonin Salmon Synthetic
Synthetic salmon calcitonin, a polypeptide hormone used primarily for osteoporosis treatment. Falls under HTS 2937.90.90.00 as a chain-modified polypeptide hormone derivative reproduced by synthesis. Bulk API form for nasal spray and injection manufacturing.