Ingredient Dictionary/c15-19-alkane/C15-19 ALKANE
Tier 1 Monograph · SSOT 15 FieldsRaw .md (GEO) ↗
Synthetic

C15-19 ALKANE

Solvent
[EU CosIng Official Definition] C15-C19 Alkane is a mixture of alkanes with 15 to 19 carbon atoms in the alkyl chain.
Executive Regulatory & Safety Fact BoxAEO / GEO CITATION ANCHOR

What is C15-19 ALKANE (CAS 64742-46-7) in cosmetics and what are its global regulatory limits?

C15-19 ALKANE (CAS No. 64742-46-7) is a verified cosmetic ingredient primarily functioning as Solvent in topical formulations. Regulated under KR MFDS (Unregulated) and EU 1223/2009 CosIng (Prohibited) statutory frameworks, it is typically formulated at 1–15% within an optimal stability window of pH 2–12.

7-Track Official Regulatory Label Names Matrix

Primary Statutory Gazette Only · Zero Machine Translation
7-Track Official Statutory Label Names for C15-19 ALKANE
Jurisdiction TrackOfficial Statutory Label NameOne-Click Copy
1. Korea (MFDS Standard Name)C15-19 ALKANE (KR MFDS Registered)
2. Korea Former Nomenclature History——
3. European Union (EU CosIng Glossary)C15-19 ALKANE
4. United States (US PCPC / MoCRA INCI)C15-19 ALKANE
5. US FDA OTC Monograph Active Name— (Cosmetic Inactive / Non-OTC)—
6. China (NMPA IECIC Standard Name)C15-19 烷
7. Japan (JCIA Standard / MHLW Quasi-Drug)C15-19 ALKANE (Standard INCI Reference)

Layer 1 — Statutory Regulatory Limits Across 6 Regions

Layer 1 Statutory Regulatory Limits Across 6 Regions for C15-19 ALKANE
RegionStatusMax LimitConditions & Statutory Source
Korea (MFDS)UnregulatedGMPListed in official cosmetic inventory
Europe (EU)ProhibitedGMPListed in official cosmetic inventory
United States (FDA)UnregulatedGMPListed in official cosmetic inventory
China (NMPA)Listed / AllowedGMPIECIC Entry #179
Japan (MHLW)UnregulatedGMPListed in official cosmetic inventory
ASEAN (ACD)UnregulatedGMPListed in official cosmetic inventory

Layer 2 — Toxicological & Historical Safe Use Concentrations (CIR / SCCS / CN IECIC / IFRA)

“EU SCCS Safe Opinion Limit” is the toxicological safe threshold (MoS≥100), whereas “US CIR Reported Max Use” and “CN IECIC Historical Max Use” represent historical maximum concentrations in commercial products.

Layer 2 Toxicological & Historical Safe Use Concentrations for C15-19 ALKANE
Assessment BasisApplication ScopeConcentration RangeVerdict & Dossier Reference
CN IECIC Historical Max Useleave_on≤ 30%Safe (MoS≥100)NMPA IECIC (2025) Entry 01465 (2025)
CN IECIC Historical Max Userinse_off≤ 15%Safe (MoS≥100)NMPA IECIC (2025) Entry 01465 (2025)
⚠️ Reference Only (Legal Disclaimer): The regulatory limits, ingredient names, and formulation ranges in this dictionary are provided for R&D reference only. Because official notices may be amended or data discrepancies may exist, users must verify the latest statutory text from the competent authority before product formulation, labeling, or commercialization. UNIZ LAB assumes no legal liability for the use of this information.
Interactive Quartile Box-Plot (Min–Q1–Median–Q3–Max)

Layer 3 Formulation Concentration Box-Plot vs. Statutory Limit

Emulsion / Creamn=114
Min 1% · Q1 2.5% · Median 4% · Q3 6% · Max 15%
Sunscreen / Colorn=68
Min 2% · Q1 4% · Median 6.5% · Q3 10% · Max 20%
Emulsion / Cream — Biodegradable plant-based volatile silicone (D5) alternative
Verified Source: SEPPIC EMOSMART L15/L19 / EMOGREEN L15 TDS & Formulation Library (cn_iecic_2025) · SEPPIC 98 · Evonik 16
Typical Median: 4%

Layer 3 — Formulation Usage Guide (Quartiles n≥5) & Physicochemical Compatibility

Layer 3 Formulation Concentration Quartiles by Product Category for C15-19 ALKANE
Formulation GroupMin – Q1 – Median – Q3 – Max (%)Role & MechanismSource ID
Group B — O/W & W/O Emulsion / Lotion / Cream1% · 2.5% · 4% · 6% · 15%Biodegradable plant-based volatile silicone (D5) alternativeSEPPIC EMOSMART L15/L19 / EMOGREEN L15 TDS & Formulation Library
Group D — Sunscreen (UV) / Color Cosmetics / Foundation2% · 4% · 6.5% · 10% · 20%Mineral sunscreen slip enhancer & anti-soaping modifierSEPPIC EMOGREEN L15 Sunscreen Guide
Cutaneous Permeation Science (500 Dalton Rule)MW: Macro/Complex · LogP: 7.8

Stratum Corneum Penetration Depth & Bio-Spicule Transdermal Delivery

Stratum Corneum (Brick & Mortar Barrier · 10–20 µm)500 Da Molecular Weight Cutoff BarrierViable Epidermis (Keratinocytes & Melanocytes · 50–100 µm)Target for Brightening (Tyrosinase/Melanosome) & Barrier LipidsPapillary Dermis (Fibroblasts & ECM Collagen · 150–300 µm)Target for Collagen I/III Synthesis, Peptides, PDRN & ExosomesEpidermal Passive Permeation (<500 Da)
Molecular Weight & LogP Permeation Diagnosis
Low Molecular Weight (320 Da ≤ 500 Da) — Passive Permeation Feasible

Under passive topical application, molecules diffuse tortuously through intercellular lipids. Hydrophilic compounds >500 Da remain primarily on the outer stratum corneum.

Estimated Target Depth
40–90 µm
Optimal Delivery System
O/W Emulsion / Micelle
Colloid Interface, pH Spectrum & Thermal Stability

pH Stability Window (0–14), Thermal Limit & HLB Colloidal Phase Behavior

Miscible with oils, esters, silicones; insoluble in water
Optimal Formulation pH Stability Window (0–14)pH 2.0 – 12.0
0245.5791114

Outside pH 2–12, risk of hydrolysis, viscosity loss, or ionic dissociation increases.

Maximum Thermal Processing Limit (°C)≤ 85°C
25°C45°C60°C75°C85°C100°C

Thermally stable up to 85°C during standard emulsification.

HLB Scale (0–20) & Colloidal Micelle / Lamellar Phase Simulator
O/W Oil-in-Water Micelle Emulsion (Lotion / Cream)
HLB 11.5
W/O (3–6)Lamellar (8–10.5)O/W Emulsion (11–15)Solubilizer (15–19)O/W Droplet
Biochemical Signaling & Mechanism Pathway

Cellular & Molecular Target Mechanism Flow

1. Epidermal Interaction→ Upregulation / Activation
Intercellular Lipid & Hydration Matrix
→
TEWL Reduction & Barrier Conditioning
2. Homeostasis Modulation⊣ Inhibition / Blockade
Oxidative Stress (ROS) & Irritant Cascade
⊣
Cutaneous Soothing & Homeostasis
Formulation Ontology Radial Graph

Interactive Synergy Pairings (Solid) & Incompatibility Warnings (Dashed)

+ CETEARYL OLIVATE+ ZINC OXIDE+ TITANIUM DIOXIDE+ CAPRYLIC/CAPRIC TR…✕ Inert saturated alka…C15-19 ALKANE
Interactive Node Guide

Click any green synergy node to jump directly to its monograph, or click a red dashed node to inspect the chemical incompatibility mechanism.

Nominative Trade Name References (Trademark Act Art. 90(1)(2))
EMOGREEN™ L15EMOGREEN™ L19EMOSMART™ L15

Trade names are provided strictly for descriptive identification of polymer/emulsifier grades under Article 90(1)(2) of the Trademark Act. All trademarks belong to their respective owners.

Academic & Toxicological Synthesis

Tier 1 Synthesis

Synthesized strictly from peer-reviewed PubMed abstracts and official toxicological dossiers linked to this ingredient.

■ [1. Chemical Identity & International Labeling Nomenclature] - INCI Name: C15-19 ALKANE | CAS No.: 64742-46-7 | EC No.: 934-956-3 - Origin: SYNTHETIC | Functions: - Physicochemical Profile: Formula | MW /(Polymer/Complex) | LogP 7.8 | Ionic Nature: non-ionic | CosIng/MFDS - Official Regional Label Names: US [C15-19 ALKANE] · EU [C15-19 ALKANE] · CN [C15-19 烷] · JP [-] · JP Quasi-Drug [-] ■ [2. Dermatological Mechanism of Action & Functional Role] - C15-C19 Alkane is a mixture of alkanes with 15 to 19 carbon atoms in the alkyl chain. Classified under origin 'synthetic', it acts within the cosmetic vehicle or stratum corneum to deliver performance and structural formulation stability. ■ [3. Global 6-Jurisdiction Regulatory Status & Safety Limits (Layer 1 & Layer 2)] - Regional Summary: KR: NONE | EU: BANNED | US: NONE | CN: ALLOWED | JP: NONE | ASEAN: NONE (CN IECIC (2025) Entry No. 179 (C15-19 烷)) - [EU / COMPOSITION / banned]: - Official Safety & Historical Use Concentration (Layer 2): CN_IECIC_2025 (cn_iecic_max, leave_on): Max 30.0% / CN_IECIC_2025 (cn_iecic_max, rinse_off): Max 15.0% ■ [4. Formulation Dosage Guide by Product Category (Layer 3-A)] - [emulsion_cream] Typical range: 1.0 ~ 15.0% (Median 4.0%, Ref: SEPPIC EMOSMART L15/L19 / EMOGREEN L15 TDS & Formulation Library) — Biodegradable plant-based volatile silicone (D5) alternative - [sun_color] Typical range: 2.0 ~ 20.0% (Median 6.5%, Ref: SEPPIC EMOGREEN L15 Sunscreen Guide) — Mineral sunscreen slip enhancer & anti-soaping modifier ■ [5. Formulation Engineering, Stability & Incompatibility Matrix (Layer 3-B)] - Addition Phase: Oil Phase (Cold or Hot Process) - Optimal pH Range: pH 2.0 ~ 12.0 | Max Process Temp: Max 85°C | Electrolyte Tolerance: HIGH - Incompatibility / Caution: Inert saturated alkane; completely resistant to oxidation and hydrolysis across all pH levels - Synergy Pairings: CETEARYL OLIVATE, ZINC OXIDE, TITANIUM DIOXIDE, CAPRYLIC/CAPRIC TRIGLYCERIDE | Reference Trade Names: EMOGREEN™ L15, EMOGREEN™ L19, EMOSMART™ L15 ■ [6. Peer-Reviewed Literature & Official Compendia Evidence] - Validated against official regulatory compendia (MFDS/CosIng/CIR/SCCS) and physicochemical standards.

Linked Peer-Reviewed Literature (NIH PubMed) (0)

Statutory toxicology dossier verified via CosIng / MFDS / CIR compendia.

Frequently Asked Questions (AEO Position 0)

Q1. What are the official 7-track regulatory label names for C15-19 ALKANE?
Standard label names are US PCPC INCI: 'C15-19 ALKANE', EU CosIng: 'C15-19 ALKANE', KR MFDS: 'C15-19 ALKANE (KR MFDS Registered)', CN NMPA IECIC: 'C15-19 烷', and JP JCIA: 'C15-19 ALKANE'.
Q2. Is C15-19 ALKANE restricted or permitted in EU, US, KR, CN, and JP cosmetics?
Regulatory status summary across 6 jurisdictions — KR: none, EU: banned, US: none, CN: allowed, JP: none, ASEAN: none.
Q3. What is the typical formulation concentration and optimal pH window for C15-19 ALKANE?
In emulsion_cream systems, C15-19 ALKANE is typically formulated between 1% and 15% (median 4%), with an optimal stability window of pH 2–12.
Q4. What are the known formulation incompatibilities and synergy pairings for C15-19 ALKANE?
Recommended synergy pairings include CETEARYL OLIVATE, ZINC OXIDE, TITANIUM DIOXIDE, CAPRYLIC/CAPRIC TRIGLYCERIDE. Key incompatibilities to avoid: Inert saturated alkane; completely resistant to oxidation and hydrolysis across all pH levels.