CAS 31807-55-3 | Isododecane | D5 Alternative for Lightweight Cosmetics & Precision Cleaning | China Manufacturer
Chemical Type: Volatile Hydrocarbon Solvent | Applications: Color Cosmetics, Sun Care, Precision Cleaning, Coatings
GRADE
Cosmetic Grade
≥99% purity, low aromatics
KEY ALTERNATIVE
D5 Alternative
Silicone-free, similar volatility
SENSORY FEEL
Dry-Touch Finish
Zero residue, fast spreading
FORM & PACK
Clear Liquid
100mL lab samples to 150kg bulk
⏱️ Response within 12 hours · For cosmetic, industrial and R&D use only.
📋 Product Overview
Isododecane (CAS 31807-55-3), commonly known as a premium volatile hydrocarbon, is a highly branched aliphatic solvent valued for its rapid evaporation and ultra-light sensory profile. Manufactured by Alfa Chemical in Zhengzhou, China, this cosmetic-grade fluid acts as the definitive silicone-free alternative to D5 (Cyclopentasiloxane).
As EU REACH regulations on cyclic silicones tighten, the Isododecane Market 2026 Report highlights its growing demand. Unlike traditional volatile silicones that can impart a heavy, "tight" after-feel, the highly branched structure of Isododecane evaporates completely without leaving any residue. It ensures exceptional pigment dispersion and a dry-touch finish, making it highly suitable for demanding industries such as long-wear color cosmetics, lightweight sunscreens, and oil-free makeup removers.
In sensitive applications like transfer-proof lipsticks or sheer facial serums, trace impurities can directly cause unpleasant odors or unexpected skin irritation. To eliminate this risk, Alfa Chemical subjects our Isododecane to advanced multi-stage fractional distillation. We strictly control the Aromatics Content to ≤ 10 mg/kg and Sulfur Content to ≤ 1 ppm. Furthermore, by maintaining an ultra-low Water Content (≤ 50 ppm), we ensure the solvent remains perfectly stable during long-term storage. This makes it equally reliable for precision cleaning formulations where controlled evaporation is critical, as well as in high-solids coatings requiring excellent leveling and flow properties.
Core Features & Benefits
- Silicone-Free D5 Substitute: Matches the volatility and sensory profile of D5 without the regulatory pressure.
- Zero Residue & Dry-Touch: Evaporates entirely upon application, eliminating heavy or sticky skin feel.
- Ultra-Low Impurities: Aromatics ≤ 10 mg/kg, Sulfur ≤ 1 ppm, ensuring no color or odor transfer.
- Factory Direct Scale-Up: Seamless transition from 100mL lab sample to 150kg production drums.
🎯 Specific Applications
Find use level, formulation tips, and technical data for each application below.
Color Cosmetics
Challenge: Achieving long-wear and transfer-proof properties without the "drying" effect of traditional silicones.
Solution: Isododecane acts as a fast-evaporating carrier for pigments and film-formers, leaving a velvet finish.
Skincare & Sun Care
Challenge: High UV filters and emollients often feel heavy, greasy, and leave a white cast.
Solution: Replaces heavy oils to improve spreadability and reduce the greasy after-feel of sunscreens.
Makeup Removers
Challenge: Removing waterproof makeup requires harsh rubbing or leaves an oily film.
Solution: A powerful solvent for waterproof mascaras and silicones that rinses cleanly.
Hair Care
Benefit: Provides lightweight conditioning and a non-greasy finish in hair serums, dry shampoos, and styling products.
Result: Evaporates quickly without weighing hair down.
Precision Cleaning
Benefit: Acts as a low-toxicity, fast-drying carrier for metal parts, LCD panels, and high-solids coatings.
Result: Evaporates cleanly without leaving streaks or residue.
Academic Research
Benefit: Essential for transdermal penetration studies, formulation courses, and organic synthesis.
Result: Requires high-purity volatile solvents with certified GC chromatograms.
Silicone Alternative (D5 Substitute)
Challenge: Regulatory pressure and heavy, occlusive feel of traditional cyclic silicones like D5.
Solution: Provides similar volatility and sensory benefits, acting as a direct, eco-friendly drop-in alternative without compromising formulation stability.
📊 Full Technical Specifications
Every shipment is accompanied by a batch-specific COA and SDS. For academic research, we also provide detailed GC chromatograms to support your data analysis.
✅ Quality Control
🧪 Purity Analysis
≥99% cosmetic grade purity verified by GC for every batch.
💧 Low Moisture
Strictly controlled ≤50 ppm to prevent formulation instability.
⚠️ Deep Desulfurization
Sulfur ≤1 ppm ensures no unpleasant odor in final cosmetics.
As a leading manufacturer based in Zhengzhou, China, we maintain a 10-ton monthly production capacity with strict EHS compliance. Contact our factory for custom technical support.
📦 Packaging & Shipping
Standard Pack Sizes
100mL / 1L / 25kg / 150kg
🛢️ Lab Packaging
100mL & 1L fluorinated bottles for zero contamination.
🚚 Logistics
Global Express, Air, Sea (FOB, CIF, DDP). Fast 3-7 days.
Shipped directly from our factory. For special packaging, contact us directly.
🏆 Why Choose Alfa Chemical as Your Manufacturer
Unlike trading companies, Alfa Chemical operates an integrated manufacturing facility in Zhengzhou, China. This allows us to maintain strict control over the entire production chain-from raw material fractionation to final packaging-ensuring that every batch of Isododecane meets the exact specifications of cosmetic and industrial formulators. We offer factory-direct pricing, customized distillation cuts, and flexible OEM/ODM services for volume orders.
10-Ton Monthly Capacity
Our continuous fractional distillation towers ensure a stable 10-ton monthly output. Ready stock for urgent 25kg and 150kg drum shipments, preventing production line downtime.
GC-Verified Batch Consistency
Equipped with in-house Gas Chromatography (GC) and Karl Fischer titrators. Every batch strictly meets ≥99% purity, Aromatics ≤10 ppm, and Sulfur ≤1 ppm, backed by raw data files.
Full EHS & Global Compliance
Operating under strict ISO 9001 protocols. We provide fully compliant SDS, COA, and non-hazardous shipping documentation (MSDS) to guarantee smooth customs clearance in the EU and US.
💡 Frequently Asked Questions
Q1. What makes Isododecane a good D5 alternative?
Isododecane offers similar volatility and sensory feel to D5 (Cyclopentasiloxane) but is a hydrocarbon, making it completely silicone-free. It provides a lighter, dry-touch finish without the environmental and regulatory concerns associated with cyclic silicones.
Q2. Does it leave a greasy residue?
No. Isododecane evaporates completely and quickly, leaving no oily or sticky residue. It is highly recommended for lightweight serums, sunscreens, and long-wear makeup.
Q3. Can I buy a small amount for university lab research?
Yes. We support academic institutions. We offer 100mL to 1L sample bottles for laboratory R&D. Full COA and SDS are provided to assist with your records.
Q4. How does Alfa Chemical control the quality?
We use advanced fractional distillation followed by deep desulfurization and dearomatization. Every single batch undergoes GC analysis to ensure ≥99% purity and aromatics ≤10 ppm. We provide a batch-specific COA and GC chromatogram.
Q5. What are the payment and trade terms?
T/T and Alibaba Trade Assurance. We support FOB, CIF, and DDP terms. Custom packaging is available for bulk orders.
Q6. How should I store Isododecane?
Store in a cool, dry place with containers tightly sealed. Avoid direct sunlight and ignition sources due to its flash point of 51°C (CAS 31807-55-3).
Ready to scale up or need a test sample?
Order a sample, download full documentation, or request a factory-direct quote today. We reply within 12 hours.
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About Alfa Chemical: Based in Zhengzhou, China, Alfa Chemical is a leading manufacturer and supplier of fine chemicals, cosmetic ingredients, and specialty intermediates to research and industrial customers worldwide.
Disclaimer: For cosmetic and personal care use only. Not for food contact or pharmaceutical applications without specific regulatory compliance. Performance is comparable to Cyclopentasiloxane (D5). All trademarks are property of their respective owners. All specifications are typical values and should be confirmed against the batch-specific Certificate of Analysis before use.
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