E-code guide
E239Hexamethylene Tetramine
HalalPreservative
E239

Hexamethylene Tetramine

Preservative

SANHA, JAKIM Handbook 2010, and MUIS all classify this as halal.
Based on 3 cited authorities. Confidence: medium.

What authorities say

3 authorities on record
3say Halal

Why this verdict

E239 is hexamethylene tetramine (hexamine), a preservative permitted in some provolone cheese and fish products. SANHA, JAKIM Handbook 2010, and MUIS all classify E239 as halal. MUIS notes it is manufactured from formaldehyde and ammonia. E239 is halal.

Common questions

Is E239 halal?

Hexamethylene Tetramine (E239) is classified halal. SANHA, JAKIM Handbook 2010, and MUIS classify it as halal.

What is E239 made from?

Hexamethylene Tetramine (E239) is produced synthetically.

Last reviewed by the HalalHQ research team in June 2026.