1,9-Thianthrenedicarboxylic acid
1,9-Thianthrenedicarboxylic acid, a polycyclic aromatic heterocyclic compound with sulfur bridges. This chemically defined compound is used in specialty chemical synthesis and materials science.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• This compound is a separate chemically defined heterocyclic compound per Chapter 29 Note 1
• Provide the structural formula and purity for customs
• Verify if the product has any restricted uses under Canadian regulations
Related Products under Tariff item 2934.99.00
1,2-Benzisothiazolin-3-one (BIT)
1,2-Benzisothiazolin-3-one (BIT) is a heterocyclic organic compound featuring a benzisothiazole ring. It is classified under tariff item 2934.99.00 as an aromatic heterocyclic compound. It is primarily used as a broad-spectrum preservative in industrial applications.
2,5-Diphenyloxazole NMR Standard
2,5-Diphenyloxazole NMR Standard is a certified reference material of 98% purity with a NIST-traceable NMR spectrum. It is an aromatic heterocyclic compound containing an oxazole ring, classified under tariff item 2934.99.00. It is used for calibrating 1H and 13C NMR spectrometers in pharmaceutical quality control laboratories.
2,5-Diphenyloxazole (PPO)
2,5-Diphenyloxazole (PPO) is a fluorescent organic compound containing an oxazole ring with phenyl substituents. It is a heterocyclic compound classified under tariff item 2934.99.00. It is primarily used as a primary scintillator in liquid scintillation counting.
2,5-Diphenyloxazole Scintillation Grade
2,5-Diphenyloxazole Scintillation Grade is a high-purity form of PPO refined for nuclear spectroscopy applications. It is an aromatic oxazole derivative classified under tariff item 2934.99.00. It exhibits optimal fluorescence quantum yield when dissolved in aromatic solvents for scintillation counting.
2-Acetylbenzo(b)thiophene
2-Acetylbenzo(b)thiophene, a specific aromatic heterocyclic compound with a thiophene ring fused to benzene. This chemically defined compound is used as an intermediate in pharmaceutical synthesis.
2-Acetylbenzo(b)thiophene Technical Grade
Technical grade 2-acetylbenzo(b)thiophene at 95-98% purity for pharmaceutical synthesis. This chemically defined heterocyclic compound is used in scale-up production of active ingredients.