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RestrictedBinding ruleKRNo English translationOfficial-source import checked

운데실레닉애씨드및 그 염류 및 모노에탄올아마이드

Listed by the Korean MFDS as a cosmetic ingredient requiring conditions of use.

All South Korea recordsOpen ingredient profileCompare all marketsOpen official source

Regulatory decision and full conditions

Status
Restricted
Legal role
Binding rule
Regulatory summary
Listed by the Korean MFDS as a cosmetic ingredient requiring conditions of use.
Conditions and restrictions
사용 후 씻어내는 제품에 산으로서 0.2% · 기타 제품에는 사용금지 · 운데실레닉애씨드소듐운데실레네이트

Substance identity

Official source name
운데실레닉애씨드및 그 염류 및 모노에탄올아마이드
CAS
112-38-9; 1333-28-4; 3398-33-2
EC
203-965-8
Identity mapping
cas_number
Linked ingredient
UNDECYLENIC ACID
Search this identity across the siteCAS 112-38-9CAS 1333-28-4CAS 3398-33-2EC 203-965-8

Linked CosIng identity data

Names and aliases

UNDECYLENIC ACIDundecylenic acidacidum undecylenicum

CosIng description: Undec-10-enoic acid; 10-Undecenoic acid

EU inventory restriction note: V/18

Recorded cosmetic function: ANTIMICROBIAL, FRAGRANCE, PRESERVATIVE, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Function pages:ANTIMICROBIAL, FRAGRANCE, PRESERVATIVE, SURFACTANT, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

View the complete ingredient profile

Cross-market snapshot for this identity

Exact linked records currently present in this site. An absent market means no imported exact match, not permission to use the substance.

5 market datasets

European Union

Positive-list entry with conditions

1 linked record · 1 with specific conditions

Open supporting record

Great Britain

Permitted list with conditions

1 linked record · 1 with specific conditions

Open supporting record
PubChem 2D chemical structure for CAS 112-38-9
CAS 112-38-9PubChem CID 5634

Verified chemistry for CAS 112-38-9

Undecylenic Acid

10-undecenoic acid is an undecenoic acid having its double bond in the 10-position. It is derived from castor oil and is used for the treatment of skin problems. It has a role as a plant metabolite and an antifungal drug. It is a conjugate acid of a 10-undecenoate. — ChEBI

IUPAC name
undec-10-enoic acid
Molecular formula
C11H20O2
Molecular weight
184.27 g/mol
Exact mass
184.146329876 Da
Monoisotopic mass
184.146329876 Da
XLogP3
3.9
Topological polar surface area
37.3 Ų
Molecular complexity
141.0
Formal charge
0
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Rotatable bonds
9
Heavy atoms
13
Covalent units
1

Names and synonyms reported to PubChem

10-UNDECENOIC ACID10-Hendecenoic acidRenselinDeclidSevinon10-Undecylenic acidundecylenateFEMA No. 3247
16 more reported names
Kyselina undecylenovaUNDECEN-10-ACID-1omega-undecenoic acidomega-hendecenoic acidNSC-2013K3D86KJ24NCHEBI:35045NSC2013DesinexMicocilenSanafitilTobcharmAntifungal PenHongo KillerRemedy NailsSally Hansen
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D pharmacophore features
4
3D rings
0
3D hydrophobes
1
3D acceptor features
2
3D donor features
0
3D anionic centres
1
3D cationic centres
0
3D conformers
10
Effective 3D rotors
9.0
Machine-readable structure identifiers
SMILES
C=CCCCCCCCCC(=O)O
InChI
InChI=1S/C11H20O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h2H,1,3-10H2,(H,12,13)
InChIKey
FRPZMMHWLSIFAZ-UHFFFAOYSA-N

Evidence from additional scientific databases

NIH PubChem PUG-View
Exact identifier match5634

Attributed physical-property, hazard, environmental and use annotations.

  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H400 (10.5%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H412 (96.2%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1915 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • Cosmetic Ingredient Review Conclusion: The CIR Expert Panel concluded that the following ingredients are safe in the present practices of use andconcentration described in the safety assessment when formulated to be non-irritating and non-sensitizing, which may be basedon a QRA...Undecylenic Acid... Source: Cosmetic Ingredient Review (CIR)
  • Cosmetic Ingredient Review Finding(s): Safe for use in cosmetics, with qualifications Source: Cosmetic Ingredient Review (CIR)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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

PubChem 2D chemical structure for CAS 1333-28-4
CAS 1333-28-4PubChem CID 5634

Verified chemistry for CAS 1333-28-4

Undecylenic Acid

IUPAC name
undec-10-enoic acid
Molecular formula
C11H20O2
Molecular weight
184.27 g/mol
Exact mass
184.146329876 Da
Monoisotopic mass
184.146329876 Da
XLogP3
3.9
Topological polar surface area
37.3 Ų
Molecular complexity
141.0
Formal charge
0
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Rotatable bonds
9
Heavy atoms
13
Covalent units
1

Names and synonyms reported to PubChem

10-UNDECENOIC ACID112-38-910-Hendecenoic acidRenselinDeclidSevinon10-Undecylenic acidundecylenate
16 more reported names
FEMA No. 3247Kyselina undecylenovaUNDECEN-10-ACID-1omega-undecenoic acidomega-hendecenoic acidNSC-2013K3D86KJ24NCHEBI:35045NSC2013DesinexMicocilenSanafitilTobcharmAntifungal PenHongo KillerRemedy Nails
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D pharmacophore features
4
3D rings
0
3D hydrophobes
1
3D acceptor features
2
3D donor features
0
3D anionic centres
1
3D cationic centres
0
3D conformers
10
Effective 3D rotors
9.0
Machine-readable structure identifiers
SMILES
C=CCCCCCCCCC(=O)O
InChI
InChI=1S/C11H20O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h2H,1,3-10H2,(H,12,13)
InChIKey
FRPZMMHWLSIFAZ-UHFFFAOYSA-N

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

PubChem 2D chemical structure for CAS 3398-33-2
CAS 3398-33-2PubChem CID 23667258

Verified chemistry for CAS 3398-33-2

Sodium Undecylenate

IUPAC name
sodium undec-10-enoate
Molecular formula
C11H19NaO2
Molecular weight
206.26 g/mol
Exact mass
206.12827413 Da
Monoisotopic mass
206.12827413 Da
Topological polar surface area
40.1 Ų
Molecular complexity
146.0
Formal charge
0
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Rotatable bonds
9
Heavy atoms
14
Covalent units
2

Names and synonyms reported to PubChem

Undecylenic Acid Sodium Salt10-Undecenoic acid, sodium saltUNII-V50TG7E11WV50TG7E11WSODIUM UNDECYLENATE [VANDF]EINECS 222-264-8SODIUM UNDECYLENATE [WHO-DD]10-Undecenoic, sodium salt
16 more reported names
AI3-1972110-Hendecenoic acid, sodium saltSODIUM UNDECYLENATE [INCI]NSC 2836NSC-2836Sodium undec10enoateRefChem:18415010Undecenoic, sodium salt682-768-2sodium;undec-10-enoateSodium 10-undecenoateSODIUM DERIVATIVE OF 10-UNDECENOATESodium undecylenate, AldrichCPRNSC2836HY-W12745210-Undecenoic acid, sodium salt (1:1)
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
Advanced structure statistics
Defined atom stereocentres
0
Undefined atom stereocentres
0
Defined bond stereocentres
0
Undefined bond stereocentres
0
3D conformers
0
Machine-readable structure identifiers
SMILES
C=CCCCCCCCCC(=O)[O-].[Na+]
InChI
InChI=1S/C11H20O2.Na/c1-2-3-4-5-6-7-8-9-10-11(12)13;/h2H,1,3-10H2,(H,12,13);/q;+1/p-1
InChIKey
DKYPZNSPQXLRRQ-UHFFFAOYSA-M

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

Official source and provenance

Registered source
South Korea MFDS cosmetic ingredient data
Source reference
화장품 안전기준 등에 관한 규정, 별표 2, record 2-83
Source record ID
2-83
Source version
2026-19
Source language
Korean
Translation status
No English translation
Effective date
2026-03-18
Source updated
2026-03-18
Snapshot checked
2026-08-30 04:33 UTC
Validation method
MFDS JSON appendices 1–2 parse; 1077 prohibited, 243 restricted
SHA-256
056de35b843a5e31f709073f9e79d5e6e18f7c9164eb537bb099b185a37ef7d8

Registered dataset notes

Dataset coverage
Ingredient identity and separate restriction/regulation data endpoints
Authority note
Korean source is canonical; English materials alone are not complete enough for certification
Inspect the exact official sourceRegulator guidance

How this record fits the market dataset

1320
current South Korea records
243
records marked Restricted
1320
records from this source version
1252
market records with CAS identity

Status distribution

Prohibited: 1077Restricted: 243

Condition text is present on 638 of 1320 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.

South Korea market context

Complete current appendix dataset

Coverage version: MFDS Notice 2026-19, effective 18 March 2026

All rows in official Appendix 1 (prohibited) and Appendix 2 (restricted) of the Safety Standards for Cosmetics.

Verification checklist

  1. Match the Korean canonical substance name and identifiers.
  2. Review all Appendix 1 and 2 matches and conditions.
  3. Check functional-cosmetic and positive-list requirements where applicable.
  4. Confirm current MFDS notice, responsible seller and label obligations.

Official market sources

Verification workflow and record completeness

Before using this result in a compliance decision

  1. Confirm that “운데실레닉애씨드및 그 염류 및 모노에탄올아마이드” and every CAS/EC identifier refer to the material in your supplier specification.
  2. Match the Korean canonical substance name and identifiers.
  3. Review all Appendix 1 and 2 matches and conditions.
  4. Check functional-cosmetic and positive-list requirements where applicable.
  5. Confirm current MFDS notice, responsible seller and label obligations.
  6. Document the source version and recheck the regulator before manufacture, notification or market placement.

Fields available in this record

  • Official substance nameAvailable
  • CASAvailable
  • ECAvailable
  • Separate condition textAvailable
  • Effective dateAvailable
  • Snapshot hash and methodAvailable

Questions this page answers

This substance is not unrestricted: cosmetic use is subject to the conditions in the cited official record. Check product type, body area, concentration, purity and warning requirements before deciding whether a formulation is compliant.

If this row does not reproduce conditions, open the cited official detail because omission does not mean unrestricted use. Korean source wording is canonical and other positive lists/notices may still apply to the formulation.

The record cites 화장품 안전기준 등에 관한 규정, 별표 2, record 2-83, source version 2026-19. Open the official source.

No. CAS helps resolve identity, but jurisdictions can classify the same substance differently and can apply different product scopes, limits, warnings and transition dates.

Stable citation

운데실레닉애씨드및 그 염류 및 모노에탄올아마이드. 화장품 안전기준 등에 관한 규정, 별표 2, record 2-83. South Korea. Source version 2026-19. CosIng Checker regulatory record: https://cosingchecker.com/regulations/kr/records/1925/

Cite the regulator as the legal authority. This page is a structured evidence index and verification aid, not a substitute for the official text or professional legal assessment.

Interpretation and limits for South Korea

This substance is not unrestricted: cosmetic use is subject to the conditions in the cited official record.

Check product type, body area, concentration, purity and warning requirements before deciding whether a formulation is compliant.

How to interpret the legal role

The cited row forms part of a binding rule or legally incorporated list for this market.

Evidence on this page

  • Recorded outcome: Restricted
  • Legal role: Binding rule
  • Source version: 2026-19
  • Effective date: 2026-03-18

What it does not prove

Korean source wording is canonical and other positive lists/notices may still apply to the formulation.

Further authoritative substance research

These sources can add identity, safety, exposure or hazard context. A link is not evidence that the database contains this exact substance, and none of these sources overrides the market decision above.

Cosmetic Ingredient Review safety assessments

Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents

Independent expert review considered by FDA; not a government approval or binding market rule

Research this identity at the source

FDA Global Substance Registration System

UNII identifiers, preferred names, substance types, codes and public substance relationships

Identity registry only; UNII availability does not imply FDA review or approval

Research this identity at the source

ILO/WHO International Chemical Safety Cards

Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals

International occupational chemical-safety reference; not cosmetic-use approval

Research this identity at the source

Japan NITE-CHRIP

Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information

Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules

Research this identity at the source

NIOSH Pocket Guide to Chemical Hazards

REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals

US occupational-health guidance and limits; not a cosmetic ingredient decision

Research this identity at the source

OECD eChemPortal

Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records

Discovery gateway; each linked authority remains responsible for its data

Research this identity at the source

US EPA CompTox CTX APIs

API key required for import

DTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data

Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality

Research this identity at the source