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Idemitsu Isohexadecane High Purity Branched Alkane CAS No. [4390-04-9] Cosmetic Grade Emollient/Viscosity Modifier

Idemitsu Isohexadecane CAS No. [4390-04-9] Cosmetic Grade Emollient/Viscosity Modifier

Idemitsu Isohexadecane is a C16 highly branched saturated alkane produced by Idemitsu Kosan of Japan through a patented isomerization process. Its unique "star-shaped molecular structure" gives it excellent spreadability and non-greasy skin feel, making it an ideal choice to replace traditional mineral oils in high-end skin care products, makeup and sunscreen products.

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Cosmetic Grade Idemitsu Isohexadecane CAS 4390-04-9 Emollient/Viscosity Modifier Idemitsu Isohexadecane

PRODUCT CATEGORY

Cosmetic Raw Materials

Product Description

Advantage

Process

FAQ

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CAS number	4390-4-9
Appearance	Colorless transparent liquid
Purity (GC)	≥99.7%
Distillation range (℃℃)	287-293
Viscosity (25℃℃, mPa·s)	2025-4-6
Flash point (closed cup, °C)	≤0.5ppm

Daily Chemical Industry:

High-end skin care, makeup and sun care products

Product Advantage

1

Triple performance breakthrough

Silky skin feel: surface tension is only 25.3 mN/m (25℃)
Stable and inert: antioxidant performance is 10 times better than straight-chain alkanes
Strong compatibility: miscible with silicone oil/vegetable oil in any proportion

2

Safety certification

Passed EU SCCS assessment (SCCS/1635/21)
Included in China's ""Catalogue of Used Cosmetic Raw Materials"" 2023 edition
Passed EWG SkinDeep® Level 1 safety rating

3

Formula innovation 1

Replacing cyclopolydimethylsiloxane (D6) reduces costs by 35%
Solve the acne problem caused by mineral oil (acne index 0)

4

Formula innovation 2

Increase the penetration rate of active ingredients (niacinamide absorption ↑25%)

Operation Guide

Skin care product application:

Essence oil formula:

Addition amount 10-20% as base oil

Need to be premixed with a wetting agent (such as PEG-40 hydrogenated castor oil)

Sunscreen products:

Replace 50% silicone oil (dosage 5-15%)

It is recommended to compound 0.5% titanium dioxide to prevent sedimentation

Makeup innovation:

Lipstick matrix accounts for 15-25% (anti-breakage)

Eye shadow powder binder: compound with isododecane 1:1

Storage conditions:

Nitrogen-filled and sealed (residual oxygen content <0.5%)

Avoid strong oxidants (shelf life 3 years)

FAQ

Q1: What is the difference with isohexadecane?

→ Structural difference: The light is a fully branched isomer (spreadability increased by 30%)
→ Purity standard: Alkane distribution CV value <2% (industry average 5%)
Q2: Does it clog pores?

→ Comedogenic index 0 (rabbit ear test), suitable for acne-prone skin
Q3: Can it be sterilized at high temperature?

→ Can withstand 150℃/2h (decomposition rate <0.1%)