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
- 2912.1 Acyclic aldehydes without other oxygen function: Aldeídos acíclicos que não contenham outras funções oxigenadas:
- 2912.11.00 Methanal (formaldehyde)Metanal (formaldeído)
- 2912.12.00 Ethanal (acetaldehyde)Etanal (acetaldeído)
- 2912.19 Aldehydes; acyclic, without other oxygen function, n.e.c. in item no. 2912.1Outros HS code
- 2912.19.1 Dialdehydes Dialdeídos
- 2912.19.11 GlyoxalGlioxal
- 2912.19.12 GlutaraldehydeGlutaraldeído
- 2912.19.19 Other acyclic dialdehydesOutros
- 2912.19.2 Unsaturated monoaldehydes Monoaldeídos não saturados
- 2912.19.21 CitralCitral
- 2912.19.22 Citronellal (3,7-dimethyl-6-octenal)Citronelal (3,7-dimetil-6-octenal)
- 2912.19.23 BergamalBergamal (3,7-dimetil-2-metileno-6-octenal)
- 2912.19.29 Other unsaturated acyclic monoaldehydesOutros
- 2912.19.9 Other Outros
- 2912.19.91 HeptanalHeptanal
- 2912.19.99 Other acyclic aldehydesOutros
- 2912.2 Cyclic aldehydes without other oxygen function: Aldeídos cíclicos que não contenham outras funções oxigenadas:
- 2912.21.00 BenzaldehydeBenzaldeído (aldeído benzoico)
- 2912.29 Aldehydes; cyclic, without other oxygen function, other than benzaldehydeOutros HS code
- 2912.29.10 Alpha-amylcinnamaldehydeAldeído alfa-amilcinâmico
- 2912.29.20 Alpha-hexylcinnamaldehydeAldeído alfa-hexilcinâmico
- 2912.29.90 Other cyclic aldehydesOutros
- 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:
- 2912.41.00 Vanillin (4-hydroxy-3-methoxybenzaldehyde)Vanilina (aldeído metilprotocatéquico)
- 2912.42.00 Ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde)Etilvanilina (aldeído etilprotocatéquico)
- 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
- 2912.49.10 3-Phenoxybenzaldehyde3-Fenoxibenzaldeído
- 2912.49.20 3-Hydroxybenzaldehyde3-Hidroxibenzaldeído
- 2912.49.30 3,4,5-Trimethoxybenzaldehyde3,4,5-Trimetoxibenzaldeído
- 2912.49.4 Aldehyde-alcohols Aldeídos-álcoois
- 2912.49.41 Hydroxymethylpentyl cyclohexenecarboxaldehyde4-(4-Hidroxi-4-metilpentil)-3-cicloexeno-1-carboxialdeído
- 2912.49.49 Other aldehyde-alcoholsOutros
- 2912.49.90 Other aldehydes with other oxygen functionOutros
- 2912.50.00 Cyclic polymers of aldehydesPolímeros cíclicos dos aldeídos
- 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.