Official EU label nameGlossary entry 22506

PORPHYRA 334

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

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Resolved identifiers

Resolved substance identity

CAS:70579-26-9

Ingredient index records:

PORPHYRA 334

Cosmetic functions: LIGHT STABILIZER, SKIN CONDITIONING

L-Threonine, N-[(5S)-3-[(carboxymethyl)amino]-5-hydroxy-5-(hydroxymethyl)-2-methoxy-2-cyclohexen-1-ylidene]-, [N(E)]-

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1 matched or reported name

PORPHYRA 334

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name PORPHYRA 334.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 70579-26-9

CAS 70579-26-9PubChem CID 91864535

Porphyra 334

Porphyra 334 has been reported in Scytonema, Synechococcus, and other organisms with data available. — LOTUS - the natural products occurrence database

IUPAC name: (2S,3R)-2-[[(5R)-3-(carboxymethylimino)-5-hydroxy-5-(hydroxymethyl)-2-methoxycyclohexen-1-yl]amino]-3-hydroxybutanoic acid

Molecular formula: C14H22N2O8
Molecular weight: 346.33 g/mol
Exact mass: 346.13761566 Da
XLogP3: -1.8
Topological polar surface area: 169.0 Å²
Hydrogen-bond donors: 6
Hydrogen-bond acceptors: 10
Covalent units: 1
Defined stereocentres: 3

Also known as

Porphyra 334 [INCI]UNII-9KIR0IH75D9KIR0IH75Dporphyra-334L-Threonine, N-((5S)-3-((carboxymethyl)amino)-5-hydroxy-5-(hydroxymethyl)-2-methoxy-2-cyclohexen-1-ylidene)-, (N(E))-PORPHYRA-334 [MI]EX-A7843TGLXC-26555

3 more reported names

DA-66830HY-126956CS-0108918

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External database identifiers

EPA DTXSID:DTXSID601047562

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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