Database/Antimicrobial/Lauryl Isoquinolinium Bromide
Mostly natural · ISO 16128

Is Lauryl Isoquinolinium Bromide natural?

Mostly. Lauryl chain is coconut-type fatty alkyl; isoquinolinium is a synthetic coal-tar-derived heterocycle; bromide is counted as a mineral counter-ion.

INCI nameLauryl Isoquinolinium Bromide
CAS93-23-2
FormulaC21H32BrN · 378.4 Da
FunctionAntimicrobial · Antistatic
FeedstockMade by quaternising isoquinoline (a coal-tar/petrochemical heterocycle) with…

How we scored it

C21H32BrN, MW 378.4: dodecyl C12H25 (169 Da, oleochemical, n=1) + Br- (mineral counter-ion, n=1, 80 Da) = 249 Da; isoquinolinium ring (petrochemical, 129 Da) → 249/378 = 0.66
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Made by quaternising isoquinoline (a coal-tar/petrochemical heterocycle) with a lauryl (dodecyl) halide derived from coconut fatty alcohol, then isolating the bromide salt. No natural alternative exists for the isoquinoline ring.

In plain English

A quaternary ammonium-type antimicrobial and antistatic ingredient combining a coconut-type fatty (lauryl) chain with a synthetic aromatic isoquinoline ring and a bromide salt. Part fatty/mineral, part synthetic dye-like chemistry.

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Structure

2D structure of Lauryl Isoquinolinium Bromide

2-dodecylisoquinolin-2-ium bromide

PubChem CID 7132 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Lauryl Isoquinolinium Bromide. PubChem CID 7132. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3LAURYL ISOQUINOLINIUM BROMIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4LAURYL ISOQUINOLINIUM BROMIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=LAURYL%20ISOQUINOLINIUM%20BROMIDE