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InventoryRef 9481402/02/2018

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

PubChem 2D chemical structure for CAS 9013-72-3
CAS 9013-72-3PubChem CID 168009928

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

2-hydroxyethyl (Z)-2-methyloctadec-9-enoate;1-hydroxypropan-2-yl (Z)-octadec-9-enoate;2-hydroxypropyl (Z)-octadec-9-enoateHEMOCYANIN
External database identifiers

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
European Commission CosIng source notes

Key data

EC
Restriction
Function
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.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

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

HEMOCYANIN is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, HEMOCYANIN carries the following function designation(s):

CAS 9013-72-3 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

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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