Kelp

Kelp is a large brown seaweed used as a food, a flavouring and a source of iodine.

Where it is and isn’t permitted

Status of Kelp by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted, with conditions21 CFR 172.365retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Harvested or farmed brown seaweed, dried and milled. Its iodine content can be very high and variable, which is why intake is a consideration for kelp specifically among the seaweeds.

  • Vegan
  • Vegetarian
InChIKey
GXDALQBWZGODGZ-UHFFFAOYSA-N
PubChem
CID 2247

Every name it appears under

61 recorded names. A label may use any of them.

CAS registry number

  • 68844-77-9

As it appears in regulation

  • Kelp

Other names

  • 1-(4-fluorobenzyl)-2-(1-(4-methoxyphenethyl)piperidin-4-yl)aminobenzimidazole
  • 1-(p-Fluorobenzyl)-2-((1-(p-methoxyphenethyl)-4-piperidyl)amino)benzimidazole
  • [3H]Astemizole
  • Alermizol
  • Alonga, Astemizol
  • Astemisan
  • Astemison
  • Astemizol
  • astemizole
  • Astemizole (JAN/USP/INN)
  • Astemizole (Standard)
  • Astemizole - Bio-X trade mark
  • Astemizole, >=98% (HPLC)
  • Astemizole, United States Pharmacopeia (USP) Reference Standard
  • Astemizole?
  • astemizolo
  • Astemizolum
  • Astemizolum (INN-Latin)
  • BRN 4830190
  • CCRIS 7595
  • Hestazol
  • Hismanal
  • HISMANAL (TN)
  • Histamen
  • Histaminos
  • Histazol
  • HMS500B21
  • HSDB 6799
  • Kelp
  • Laridal
  • Metodih
  • Metodik
  • MJD-30
  • Novo-mastizol A
  • Novo-nastizol a
  • Paralergin
  • Pollon-eze
  • ratiopharm, Astemizol
  • Retolen
  • UPCMLD-DP024
  • UPCMLD-DP024:001
  • Wareezol
  • Waruzol

Systematic names

  • 1-((4-Fluorophenyl)methyl)-N-(1-(2-(4-methoxyphenyl)ethyl)-4-piperidinyl)- 1H-benzimidazol-2-amine
  • 1-(4-fluorobenzyl)-N-(1-(4-methoxyphenethyl)piperidin-4-yl)-1H-benzo[d]imidazol-2-amine
  • 1-(4-Fluorobenzyl)-N-(1-[2-(4-methoxyphenyl)ethyl]-4-piperidinyl)-1H-benzimidazol-2-amine #
  • 1-(4-fluorobenzyl)-N-{1-[2-(4-methoxyphenyl)ethyl]piperidin-4-yl}-1H-benzimidazol-2-amine
  • 1-(4-fluorophenylmethyl)-N-{1-[2-(4-methoxyphenyl)ethyl]-4-piperidinyl}-1H-benzimidazol-2-amine
  • 1-(p-Fluorobenzyl)-2-((1-(2-(p-methoxyphenyl)ethyl)piperid-4-yl)amino)benzimidazole
  • 1-[(4-fluorophenyl)methyl]-N-(1-{2-[4-(methyloxy)phenyl]ethyl}piperidin-4-yl)-1H-benzimidazol-2-amine
  • 1-[(4-Fluorophenyl)methyl]-N-[1-[2-(4-methoxyphenyl)ethyl]-4-piperidinyl]-1H-benzimidazol-2-amine
  • 1-[(4-fluorophenyl)methyl]-N-[1-[2-(4-methoxyphenyl)ethyl]-4-piperidyl]benzimidazol-2-amine
  • 1-[(4-fluorophenyl)methyl]-N-[1-[2-(4-methoxyphenyl)ethyl]piperidin-4-yl]benzimidazol-2-amine
  • 1-[(4-fluorophenyl)methyl]-N-{1-[2-(4-methoxyphenyl)ethyl]piperidin-4-yl}-1H-1,3-benzodiazol-2-amine
  • 1-[(4-Fluorophenyl)methyl]-N-{1-[2-(4-methoxyphenyl)ethyl]piperidin-4-yl}-1H-benzimidazol-2-amine
  • 1H-Benzimidazol-2-amine, 1-((4-fluorophenyl)methyl)-N-(1-(2-(4-methoxyphenyl)eth l)-4-piperidinyl)-
  • 1H-Benzimidazol-2-amine, 1-((4-fluorophenyl)methyl)-N-(1-(2-(4-methoxyphenyl)ethyl)-4-piperidinyl)-
  • Benzimidazole, 1-(p-fluorobenzyl)-2-((1-(2-(p-methoxyphenyl)ethyl)piperid-4-yl)amino)-
  • {1-[(4-fluorophenyl)methyl]benzimidazol-2-yl}{1-[2-(4-methoxyphenyl)ethyl](4-p iperidyl)}amine

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/kelp.json