Brazil NCM · 4-digit heading

NCM 29.12 – Aldehydes, cyclic polymers and paraformaldehyde

About NCM heading 29.12

Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde

Heading 29.12 of Brazil's NCM has 25 eight-digit codes. Official Portuguese description: Aldeídos, mesmo que contenham outras funções oxigenadas; polímeros cíclicos dos aldeídos; paraformaldeído.

The first four digits, 2912, identify this heading within chapter 29. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.

For product coverage and classification context, read the HS heading 29.12 guide.

NCM codes in heading 29.12 25

  1. 2912.1 Acyclic aldehydes without other oxygen function: Aldeídos acíclicos que não contenham outras funções oxigenadas:
  2. 2912.11.00 Methanal (formaldehyde)Metanal (formaldeído)
  3. 2912.12.00 Ethanal (acetaldehyde)Etanal (acetaldeído)
  4. 2912.19 Aldehydes; acyclic, without other oxygen function, n.e.c. in item no. 2912.1Outros HS code
  5. 2912.19.1 Dialdehydes Dialdeídos
  6. 2912.19.11 GlyoxalGlioxal
  7. 2912.19.12 GlutaraldehydeGlutaraldeído
  8. 2912.19.19 Other acyclic dialdehydesOutros
  9. 2912.19.2 Unsaturated monoaldehydes Monoaldeídos não saturados
  10. 2912.19.21 CitralCitral
  11. 2912.19.22 Citronellal (3,7-dimethyl-6-octenal)Citronelal (3,7-dimetil-6-octenal)
  12. 2912.19.23 BergamalBergamal (3,7-dimetil-2-metileno-6-octenal)
  13. 2912.19.29 Other unsaturated acyclic monoaldehydesOutros
  14. 2912.19.9 Other Outros
  15. 2912.19.91 HeptanalHeptanal
  16. 2912.19.99 Other acyclic aldehydesOutros
  17. 2912.2 Cyclic aldehydes without other oxygen function: Aldeídos cíclicos que não contenham outras funções oxigenadas:
  18. 2912.21.00 BenzaldehydeBenzaldeído (aldeído benzoico)
  19. 2912.29 Aldehydes; cyclic, without other oxygen function, other than benzaldehydeOutros HS code
  20. 2912.29.10 Alpha-amylcinnamaldehydeAldeído alfa-amilcinâmico
  21. 2912.29.20 Alpha-hexylcinnamaldehydeAldeído alfa-hexilcinâmico
  22. 2912.29.90 Other cyclic aldehydesOutros
  23. 2912.4 Aldehyde-alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function: Aldeídos-álcoois, aldeídos-éteres, aldeídos-fenóis e aldeídos que contenham outras funções oxigenadas:
  24. 2912.41.00 Vanillin (4-hydroxy-3-methoxybenzaldehyde)Vanilina (aldeído metilprotocatéquico)
  25. 2912.42.00 Ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde)Etilvanilina (aldeído etilprotocatéquico)
  26. 2912.49 Aldehyde-alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function; other than vanillin (4-hydroxy-3-methoxybenzaldehyde) and ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde)Outros HS code
  27. 2912.49.10 3-Phenoxybenzaldehyde3-Fenoxibenzaldeído
  28. 2912.49.20 3-Hydroxybenzaldehyde3-Hidroxibenzaldeído
  29. 2912.49.30 3,4,5-Trimethoxybenzaldehyde3,4,5-Trimetoxibenzaldeído
  30. 2912.49.4 Aldehyde-alcohols Aldeídos-álcoois
  31. 2912.49.41 Hydroxymethylpentyl cyclohexenecarboxaldehyde4-(4-Hidroxi-4-metilpentil)-3-cicloexeno-1-carboxialdeído
  32. 2912.49.49 Other aldehyde-alcoholsOutros
  33. 2912.49.90 Other aldehydes with other oxygen functionOutros
  34. 2912.50.00 Cyclic polymers of aldehydesPolímeros cíclicos dos aldeídos
  35. 2912.60.00 ParaformaldehydeParaformaldeído

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.