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CAS 18996-35-5 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 5690015/10/2010

MONOSODIUM CITRATE

2-Hydroxy-1,2,3-Propanetricarboxylic Acid, Monodium Salt

MONOSODIUM CITRATE 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 18996-35-5

CAS 18996-35-5PubChem CID 23666341

Monosodium Citrate

IUPAC name: sodium 3-carboxy-3,5-dihydroxy-5-oxopentanoate

Molecular formula: C6H7NaO7
Molecular weight: 214.10 g/mol
Exact mass: 214.00894684 Da
Topological polar surface area: 135.0 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 7
Covalent units: 2
Defined stereocentres: 0

Also known as

Sodium citrate monobasicSodium dihydrogen citrate1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monosodium salt1,2,3-Propanetricarboxylic acid, 2-hydroxy-, sodium salt (1:1)E 331IRefChem:159615242-734-6sodium 3,4-dicarboxy-3-hydroxybutanoate

14 more reported names

Citric acid monosodium saltC6H7NaO7Monosodium Citrate Anhydroussodium;3-carboxy-3,5-dihydroxy-5-oxopentanoateSodium dihydrogencitratemono sodium citrateSodium dihydrogencitrate, 99%sodium,2-(carboxymethyl)-2,4-dihydroxy-4-oxobutanoateTSH-00076CS-W009322HY-W008606Sodium citrate monobasic, BioXtra, anhydrous, >=99.5% (T)Sodium citrate monobasic, purum p.a., anhydrous, >=99.0% (T)sodium;2-(2-hydroxy-2-oxoethyl)-2,4-bis(oxidanyl)-4-oxidanylidene-butanoate

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External database identifiers

EPA DTXSID:DTXSID80872904

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 MONOSODIUM CITRATE

INCI name

MONOSODIUM CITRATE

Description

2-Hydroxy-1,2,3-Propanetricarboxylic Acid, Monodium Salt

Record provenance

Inventory reference: 56900
Imported identity: MONOSODIUM CITRATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for MONOSODIUM CITRATE

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Key data

CAS

18996-35-5

242-734-6

Restriction

—

Function

BUFFERING: Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.

Official EU ingredient-name evidence

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

#16859 · MONOSODIUM CITRATE

Ingredients with overlapping formulation functions

METHOXY PEG-114/POLYEPSILON CAPROLACTONEBUFFERING, FILM FORMING, HAIR CONDITIONING

METHYLETHANOLAMINEBUFFERING

MIPA-BORATEBUFFERING

MIXED ISOPROPANOLAMINESBUFFERING

MORPHOLINEBUFFERING

MORPHOLINOPROPANE SULFONIC ACIDBLEACHING, BUFFERING

MUDSTONE POWDERABRASIVE, BUFFERING

PAECILOMYCES JAPONICA/GRAPE/CUCUMBER JUICE EXTRACT FERMENT FILTRATEABSORBENT, ANTIOXIDANT, BUFFERING, 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 MONOSODIUM CITRATE appears in the CosIng inventory

The CosIng inventory lists MONOSODIUM CITRATE 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.

MONOSODIUM CITRATE is also tagged with 1 cosmetic function 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

MONOSODIUM CITRATE 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, MONOSODIUM CITRATE carries the following function designation(s):

BUFFERING

CAS 18996-35-5 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 MONOSODIUM CITRATE

This page reproduces the CosIng inventory entry for MONOSODIUM CITRATE 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 MONOSODIUM CITRATE 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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