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CAS 5743-27-1 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 5517515/10/2010

CALCIUM ASCORBATE

L-ascorbic acid, calcium salt (2:1)

CALCIUM ASCORBATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 5743-27-1

CAS 5743-27-1PubChem CID 54740489

Calcium Ascorbate

IUPAC name: calcium bis((2R)-2-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-5-oxo-2H-furan-4-olate)

Molecular formula: C12H14CaO12
Molecular weight: 390.31 g/mol
Exact mass: 390.0111167 Da
Topological polar surface area: 220.0 Å²
Hydrogen-bond donors: 6
Hydrogen-bond acceptors: 12
Covalent units: 3
Defined stereocentres: 4

Also known as

Ascorbic acid calcium saltCalcium diascorbateCalcium ascorbate anhydrousHemicalcium ascorbateCalci-CL-Ascorbic acid, calcium salt (2:1)Ester-CCalcium ascorbate (e 302)

16 more reported names

J96U0ZD4Y6INS NO.302E 302INS-302Vitamin c (as calcium ascorbate)E-302L-Ascorbic acid, calcium salt (2:1), dihydrateRefChem:573386227-261-5183E4W213WAscorbic acid calciumCalcium L-ascorbateUNII-J96U0ZD4Y6CCRIS 7671HSDB 255EINECS 227-261-5

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External database identifiers

ChEMBL:CHEMBL2146095
EPA DTXSID:DTXSID40110036

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 CALCIUM ASCORBATE

INCI name

CALCIUM ASCORBATE

Description

L-ascorbic acid, calcium salt (2:1)

Record provenance

Inventory reference: 55175
Imported identity: CALCIUM ASCORBATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for CALCIUM ASCORBATE

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Key data

CAS

5743-27-1

227-261-5

Restriction

—

Function

ANTIOXIDANT: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
SKIN CONDITIONING: Maintaining the skin in good condition.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#4907 · CALCIUM ASCORBATE

Ingredients with overlapping formulation functions

CAFFEOYL TRIPEPTIDE-35ANTIOXIDANT, CHELATING, SKIN PROTECTING, UV FILTER

CAFFEOYL TRIPEPTIDE-7ANTIOXIDANT, SKIN PROTECTING

CAFFEYL GLUCOSIDEANTIOXIDANT, SKIN CONDITIONING

CAJANUS CAJAN ROOT EXTRACTANTIMICROBIAL; ANTIOXIDANT; ANTI-SEBUM; BLEACHING; SKIN PROTECTING

CALENDULA OFFICINALIS CALLUS LYSATE EXTRACTANTIOXIDANT; SKIN PROTECTING

CALENDULA OFFICINALIS MERISTEM CELL EXTRACTANTIOXIDANT

CALLITRIS COLUMELLARIS LEAF/WOOD EXTRACTANTIOXIDANT, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

CALLITRIS COLUMELLARIS SEED OILANTIOXIDANT, HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

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

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How CALCIUM ASCORBATE appears in the CosIng inventory

The CosIng inventory lists CALCIUM ASCORBATE 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.

CALCIUM ASCORBATE 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

CALCIUM ASCORBATE 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, CALCIUM ASCORBATE carries the following function designation(s):

CAS 5743-27-1 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.

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Source note for CALCIUM ASCORBATE

This page reproduces the CosIng inventory entry for CALCIUM ASCORBATE 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 CALCIUM ASCORBATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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