HEMOCYANIN
Hemocyanin is the oxygen-transporting protein found in cold-blood animals such as arthropods and molluscs.
HEMOCYANIN is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Chemical identity and properties

Keyhole limpet hemocyanin
Keyhole limpet hemocyanin is an immune modulator, given as a vaccine to help the body respond to cancer. A natural protein isolated from the marine mollusc keyhole limpet. Keyhole limpet hemocyanin is an immunogenic carrier protein that, in vivo, increases antigenic immune responses to haptens and other weak antigens such as idiotype proteins. — DrugBank
- IUPAC name
- 2-hydroxyethyl 2-methyloctadec-9-enoate;1-hydroxypropan-2-yl octadec-9-enoate;2-hydroxypropyl octadec-9-enoate
- Molecular formula
- C63H120O9
- Molecular weight
- 1021.6 g/mol
- Exact mass
- 1020.89323540 Da
- Topological polar surface area
- 140.0 Ų
- Hydrogen-bond donors
- 3
- Hydrogen-bond acceptors
- 9
- Covalent units
- 3
- Defined stereocentres
- 0
Also known as
External database identifiers
- PubMed:12153512
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for HEMOCYANIN
INCI name
HEMOCYANIN
Description
Hemocyanin is the oxygen-transporting protein found in cold-blood animals such as arthropods and molluscs.
Record provenance
- Inventory reference
- 94814
- Imported identity
- HEMOCYANIN
- Source update
- 02/02/2018
Annex records for HEMOCYANIN
Key data
- ANTI-SEBUM
- Helping control sebum production.
- ANTIMICROBIAL
- Preventing and/or slowing down microbial growth.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How HEMOCYANIN appears in the CosIng inventory
The CosIng inventory lists HEMOCYANIN as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
HEMOCYANIN is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for HEMOCYANIN
This page reproduces the CosIng inventory entry for HEMOCYANIN from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research HEMOCYANIN and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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