PPO (2,5-Diphenyloxazole) Research Chemical
Laboratory-grade 2,5-Diphenyloxazole imported for organic synthesis and fluorescence studies under HTS 2934.99.08.00. This compound serves as wavelength shifter in multi-component scintillator systems and precursor for custom fluorophores. Packaged in amber glass for light-sensitive applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when imported as saturated oxazole derivative
Non-aromatic heterocyclic oxygen compounds classified under earlier chapter 2915 heading.
If formulated as inorganic pigment component
Certain fluorescent compounds used in pigment production fall under Chapter 32.
If included in herbicide synthesis intermediates
Organo-sulfur heterocyclic intermediates for pesticides classified in Chapter 38.
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Import Tips & Compliance
• Label shipments 'Research Chemical - Not for Drug Use' to prevent FDA pharmaceutical scrutiny
• Include REACH compliance documentation for EU-origin material entering US markets
• Use child-resistant packaging meeting 16 CFR 1700 standards for consumer chemical safety
Related Products under HTS 2934.99.08.00
2,5-Diphenyloxazole (PPO)
2,5-Diphenyloxazole is a fluorescent organic compound classified under HTS 2934.99.08.00 as an aromatic heterocyclic compound containing an oxazole ring with phenyl substituents. It is primarily used as a primary scintillator in liquid scintillation cocktails for detecting beta radiation in radiochemical analysis.
2,5-Diphenyloxazole Scintillation Grade
High-purity 2,5-Diphenyloxazole (PPO) specifically refined for nuclear spectroscopy applications, classified under HTS 2934.99.08.00. This aromatic oxazole derivative exhibits optimal fluorescence quantum yield when dissolved in toluene or pseudocumene scintillators. Used in environmental monitoring and medical isotope research.
2,5-Diphenyloxazole NMR Standard
Certified reference material of 2,5-Diphenyloxazole at 98% purity with NIST-traceable NMR spectrum, classified HTS 2934.99.08.00. Used for calibrating 1H and 13C NMR spectrometers in pharmaceutical QC labs. Provides characteristic aromatic proton signals at 7.9-8.1 ppm.
High-Purity PPO for Plastic Scintillators
Ultra-pure 2,5-Diphenyloxazole (PPO) dissolved at 2% in polystyrene for extruded plastic scintillator sheets, under HTS 2934.99.08.00 when imported as pure active ingredient. Essential for high-energy physics detectors and security screening systems. Provides 360nm emission peak matching PMT sensitivity.