Sao Tome and Principe HS Code

HS Code 29337900: Compostos heterocíclicos exclusivamente de heteroátomo(s) de azoto (nitrogénio): Lactamas: Outras lactamas in Sao Tome and Principe

Q: Is HS code 29337900 the same across all countries?

Only the first 6 digits of HS code 29337900 are internationally harmonized. The remaining digits are added by Sao Tome and Principe under HS-ST and are not directly comparable to other countries' codes.

Q: What system does Sao Tome and Principe use to classify HS code 29337900?

Sao Tome and Principe classifies products under the Pauta Aduaneira (HS-ST; locally Pauta Aduaneira), which extends HS codes to 8 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 29337900 in Sao Tome and Principe?

The official source is https://www.alfandegas.gov.st/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 29337900 in Sao Tome and Principe

Under Sao Tome and Principe's Pauta Aduaneira (Pauta Aduaneira), HS Code 29337900 is classified as Compostos heterocíclicos exclusivamente de heteroátomo(s) de azoto (nitrogénio): Lactamas: Outras lactamas. Sao Tome and Principe's tariff system extends the WCO Harmonized System to 8 digits with national subdivisions. 29337900 belongs to Section VI: Products of the chemical or allied industries, Chapter 29: Organic chemicals, Heading 2933: Heterocyclic compounds with nitrogen heteroatom(s) only.

Explore more 2026 Latest Sao Tome and Principe import export trade data and shipment records for HS Code Other Lactam Compounds on TradeInt global trade data platform

Classification Path of HS Code 29337900 in Sao Tome and Principe

Section VI

Chapters (28-38) Products of the chemical or allied industries

Chapter 29

Organic chemicals

HS Code 2933

Heterocyclic compounds with nitrogen heteroatom(s) only

HS Code 29337900

Compostos heterocíclicos exclusivamente de heteroátomo(s) de azoto (nitrogénio): Lactamas: Outras lactamas

Sao Tome and Principe Tariff Classification: Pauta Aduaneira (HS-ST)

In Sao Tome and Principe, HS 29337900 is classified under the Pauta Aduaneira (Pauta Aduaneira) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Pauta Aduaneira (HS-ST)

Local name Pauta Aduaneira

Digits 8

Official source https://www.alfandegas.gov.st/

You know what 29337900 means. Now see 2026 latest real trade activity for Other Lactam Compounds in Sao Tome and Principe.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest Sao Tome and Principe Import Data Search 2026 Latest Sao Tome and Principe Export Data

Related HS Code to Sao Tome and Principe Other Lactam Compounds (29337900)

HS Code 293311

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure : Phenazone (antipyrin) and its derivatives

HS Code 293319

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure : Other

HS Code 293321

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure : Hydantoin and its derivatives

HS Code 293329

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure : Other

HS Code 293331

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure : Pyridine and its salts

HS Code 293332

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure : Piperidine and its salts

HS Code 293333

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure : Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN) and trimeperidine (INN); salts thereof

HS Code 293339

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure : Other

HS Code 293341

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing in the structure a quinoline or isoquinoline ringsystem (whether or not hydrogenated), not further fused : Levorphanol (INN) and its salts

HS Code 293349

Heterocyclic compounds with nitrogen heteroatom(s) only : Compounds containing in the structure a quinoline or isoquinoline ringsystem (whether or not hydrogenated), not further fused : Other

29337900 in Other Countries

See how 29337900 (Other Lactam Compounds) is classified across other countries, each with its own national code and local description.

Compare 29337900 across countries

Frequently Asked Questions

What is HS code 29337900 in Sao Tome and Principe?

HS code 29337900 covers Compostos heterocíclicos exclusivamente de heteroátomo(s) de azoto (nitrogénio): Lactamas: Outras lactamas in Sao Tome and Principe. It sits in Chapter 29 (Organic chemicals), Heading 2933 of the Harmonized System, and is classified under HS-ST.

Is HS code 29337900 the same across all countries?

What system does Sao Tome and Principe use to classify HS code 29337900?

Where can I officially look up HS code 29337900 in Sao Tome and Principe?