What other records share CAS 5743-17-9?

CAS 5743-17-9 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.

How do I check if my formula contains CAFFEINE BENZOATE?

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

InventoryRef 3230515/10/2010

CAFFEINE BENZOATE

Benzoic acid, compd. with 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione (1:1)

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

INCI Checker Compare all markets Search similar

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.

Markets and their official sources Search every market for this name

Chemical identity and properties

PubChem 2D chemical structure for CAS 5743-17-9

CAS 5743-17-9PubChem CID 64120

Caffeine benzoate

IUPAC name: benzoic acid;1,3,7-trimethylpurine-2,6-dione

Molecular formula: C15H16N4O4
Molecular weight: 316.31 g/mol
Exact mass: 316.11715500 Da
Topological polar surface area: 95.7 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 5
Covalent units: 2
Defined stereocentres: 0

Also known as

caffeine, sodium benzoate drug combinationC2154V12SERefChem:122663227-257-3Caffeine-sodium benzoate1,3,7-Trimethyl-1H-purine-2,6(3H,7H)-dione benzoate1,3,7-trimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione; benzoic acidcaffeine - sodium benzoate

8 more reported names

Caffeine, monobenzoateEINECS 227-257-3UNII-C2154V12SEVXXKVQICUHMECR-UHFFFAOYSA-NCaffeine, benzoate drug combination1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, monobenzoateBenzoic acid--1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione (1/1)1H-PURINE-2,6-DIONE, 3,7-DIHYDRO-1,3,7-TRIMETHYL-, BENZOATE (1:1)

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID10206016
PubMed:18179623
PubMed:16919674
PubMed:7834261
PubMed:5561865
PubMed:1540370

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 CAFFEINE BENZOATE

INCI name

CAFFEINE BENZOATE

Description

Benzoic acid, compd. with 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione (1:1)

Record provenance

Inventory reference: 32305
Imported identity: CAFFEINE BENZOATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for CAFFEINE BENZOATE

Browse

Browse EU annexes

Explore Annex II–VI to see which substances are prohibited, restricted or permitted under specific conditions.

Search annex entries

Search the annex database for entries matching CAFFEINE BENZOATE or related substances.

Key data

CAS

5743-17-9

227-257-3

Restriction

—

Function

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.

#4858 · CAFFEINE BENZOATE

Ingredients with overlapping formulation functions

CAESALPINIA SPINOSA GUMFILM FORMING, SKIN CONDITIONING, VISCOSITY CONTROLLING

CAESALPINIA SPINOSA HYDROXYPROPYLTRIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

CAFFEIC/COCO/COUMARIC/MANGOSTEEN PERICARP ESTERSANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, SKIN CONDITIONING

CAFFEINEPERFUMING, SKIN CONDITIONING

CAFFEINE CARBOXYLIC ACIDSKIN CONDITIONING

CAFFEINE CARBOXYLOYL SH-DECAPEPTIDE-1SKIN CONDITIONING

CAFFEINE CARBOXYLOYL TRIPEPTIDE-37SKIN CONDITIONING

CAFFEINE SALICYLATESKIN CONDITIONING

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 CAFFEINE BENZOATE appears in the CosIng inventory

The CosIng inventory lists CAFFEINE BENZOATE 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.

CAFFEINE BENZOATE 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

CAFFEINE BENZOATE 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, CAFFEINE BENZOATE carries the following function designation(s):

SKIN CONDITIONING

CAS 5743-17-9 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.

View CAS records

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

Open INCI Checker

Source note for CAFFEINE BENZOATE

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

View sources View updates

Tools & next steps

Check your formula

Scan a full INCI list to detect CAFFEINE BENZOATE and any linked EU annex restrictions or allergen flags.

INCI Checker

Search similar ingredients

Find other inventory ingredients and annex entries related to CAFFEINE BENZOATE, its identifiers or nearby name variants.