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InventoryRef 3154606/08/2020

7-ETHYLBICYCLOOXAZOLIDINE

7a-ethyldihydro-1H,3H,5H-oxazolo[3,4-c]oxazole

7-ETHYLBICYCLOOXAZOLIDINE is linked to 1 EU annex record on this page. Inventory note: V/49.

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Regulatory evidence by market

This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.

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MarketEvidence statusRecordsSource language
European UnionEvidence linked
Positive-list entry with conditions
Open this evidence		1English and EU languages
Great BritainEvidence linked
Permitted list with conditions
Open this evidence		1English
CanadaSource mapped
Official source mapped; ingredient rule not imported
0English and French
New ZealandEvidence linked
Permitted list with conditions
Open this evidence		1English
ASEANEvidence linked
Permitted list with conditions
Open this evidence		1English and national languages
ChinaSource mapped
Official source mapped; ingredient rule not imported
0Chinese with selected English material
JapanSource mapped
Official source mapped; ingredient rule not imported
0Japanese; official English translation available
South KoreaSource mapped
Official source mapped; ingredient rule not imported
0Korean with some English names
United StatesSource mapped
Official source mapped; ingredient rule not imported
0English
AustraliaSource mapped
Official source mapped; ingredient rule not imported
0English
BrazilSource mapped
Official source mapped; ingredient rule not imported
0Portuguese with INCI crosswalks
IndiaSource mapped
Official source mapped; ingredient rule not imported
0English and Hindi
Saudi ArabiaSource mapped
Official source mapped; ingredient rule not imported
0Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 7747-35-5
CAS 7747-35-5PubChem CID 82190

Oxazolidine-E

IUPAC name
7a-ethyl-1,3,5,7-tetrahydro-[1,3]oxazolo[3,4-c][1,3]oxazole
Molecular formula
C7H13NO2
Molecular weight
143.18 g/mol
Exact mass
143.094628657 Da
XLogP3
0.5
Topological polar surface area
21.7 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
0

Also known as

Oxazolidine E7-Ethylbicyclooxazolidine5-Ethyl-1-aza-3,7-dioxabicyclo[3.3.0]octaneOxaban E7a-Ethyldihydro-1H,3H,5H-oxazolo(3,4-c)oxazoleCCRIS 90077a-ethyldihydro-1h,3h,5h-oxazolo[3,4-c]oxazoleOXABAN-E
16 more reported names
TRUPTAN OX-EEINECS 231-810-41H,3H,5H-Oxazolo(3,4-c)oxazole, 7a-ethyldihydro-AMINE CS 1246EC 231-810-41-Aza-5-ethyl-3,7-dioxabicyclo(3.3.0)octane1H,3H,5H-Oxazolo[3,4-c]oxazole, 7a-ethyldihydro-5-ethyl-1-aza-3,7-dioxabicyclo(3.3.0)octane1H,3H,5H-Oxazolo(3,4-c)oxazone, 7a-ethyldihydro-RefChem:8570987-ETHYLBICYCLOOXAZOLIDINE [INCI]1H,3H,5H-Oxazolo3,4-coxazole, 7a-ethyldihydro-231-810-47a-Ethyltetrahydro-1H-oxazolo[3,4-c]oxazoleZoldine ZENeosyn TX
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for 7-ETHYLBICYCLOOXAZOLIDINE

INCI name

7-ETHYLBICYCLOOXAZOLIDINE

Description

7a-ethyldihydro-1H,3H,5H-oxazolo[3,4-c]oxazole

Record provenance

Inventory reference
31546
Imported identity
7-ETHYLBICYCLOOXAZOLIDINE
Source update
06/08/2020
European Commission CosIng source notes

Key data

CAS
7747-35-5
EC
231-810-4
Restriction
V/49
Function
PRESERVATIVE
Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

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

#383 · 7-ETHYLBICYCLOOXAZOLIDINE

Ingredients with overlapping formulation functions

2-BROMO-2-NITROPROPANE-1,3-DIOLPRESERVATIVE
4-HYDROXYBENZOIC ACIDFRAGRANCE, PRESERVATIVE
5-BROMO-5-NITRO-1,3-DIOXANEPRESERVATIVE
ALPINIA SPECIOSA FLOWER/ LEAF/SEED/ STEM EXTRACTANTIOXIDANT, PRESERVATIVE
ALPINIA SPECIOSA FLOWER/LEAF/SEED/STEM EXTRACTANTIOXIDANT, PRESERVATIVE
ALPINIA SPECIOSA LEAF/STEM FERMENTANTIOXIDANT, PRESERVATIVE
AMMONIUM BENZOATEPRESERVATIVE
AMMONIUM BISULFITEHAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING

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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How 7-ETHYLBICYCLOOXAZOLIDINE appears in the CosIng inventory

The CosIng inventory lists 7-ETHYLBICYCLOOXAZOLIDINE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

7-ETHYLBICYCLOOXAZOLIDINE 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

7-ETHYLBICYCLOOXAZOLIDINE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for 7-ETHYLBICYCLOOXAZOLIDINE reads: "V/49". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, 7-ETHYLBICYCLOOXAZOLIDINE carries the following function designation(s):

CAS 7747-35-5 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 7-ETHYLBICYCLOOXAZOLIDINE

This page combines the CosIng inventory entry for 7-ETHYLBICYCLOOXAZOLIDINE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research 7-ETHYLBICYCLOOXAZOLIDINE 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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