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Solvents - Aliphatic Available — Bulk Only

Isododecane

CAS 31807-55-3 · Formula C12H26 · MW 170.33 g/mol

A volatile branched C12 alkane supplied as a fast-spreading, light emollient and cosmetic solvent. Per its PubChem/INCI cosmetic classification it is used as an emollient and solvent in personal-care formulations.

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UN Number
UN 2286
Hazard Class
Class 3
HS Code
2901.10
At a Glance
Material Family
Solvents - Aliphatic
Record Type
Pure compound
Primary Role
Solvency · Emolliency
Functional Roles
Solvency Emolliency Conditioning
INCI Name
ISODODECANE
CosIng Functions
EMOLLIENTSOLVENT
Industries Served
Beauty & Personal Care HI&I Cleaning Industrial Manufacturing
Applications & Use Cases
  • ▸ Emollient: light, volatile skin-feel agent in cosmetics
  • ▸ Solvent: carrier solvent for color cosmetics and sunscreens
  • ▸ Volatile carrier: fast-drying base for long-wear formulations
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 3 placard
UN / DOT NumberUN 2286
Hazard Class / DivisionClass 3
Packing GroupIII
Proper Shipping NamePentamethylheptane

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2901 . 10
Chapter 29
Organic chemicals
Heading 29.01
Internationally harmonized (WCO HS)
Subheading 2901.10
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
31807-55-3
Molecular Formula
C12H26
Molecular Weight
170.33 g/mol
IUPAC Name
2-methylundecane
INCI Name
ISODODECANE
PubChem CID
23459
InChI Key
GTJOHISYCKPIMT-UHFFFAOYSA-N
Synonyms & Trade Names
2,2,4,6,6-Pentamethylheptane Branched dodecane C12 isoparaffin Iso-C12 Hydrogenated isododecene 2-Methylundecane Undecane, 2-methyl- Undecane, 2methyl ISODODECANE 2 2 4 6 6-PENTAMETHYLHEPTANE 2-Methylhendecane isodo-decane 2-METHYL UNDECANE
Full Description

Isododecane (CAS 31807-55-3) is a branched, saturated C12 hydrocarbon (2,2,4,6,6-pentamethylheptane). Per its PubChem/INCI cosmetic classification it is used as an emollient and solvent in personal-care formulations.

Frequently Asked Questions

What is isododecane used for?

Isododecane (CAS 31807-55-3) is a branched, saturated C12 hydrocarbon (2,2,4,6,6-pentamethylheptane). Per its INCI classification it is used in personal-care formulations as a light, volatile emollient and as a carrier solvent for color cosmetics and sunscreens.

Is isododecane a silicone?

No. Isododecane is a branched aliphatic hydrocarbon (C12H26), not a silicone. It is sometimes used as a hydrocarbon alternative to volatile silicones for similar light, fast-drying skin feel.

What is isododecane made of?

It is a single branched saturated hydrocarbon, 2,2,4,6,6-pentamethylheptane (C12H26), typically produced from petrochemical feedstocks. Consult the CoA for purity and isomer specification.

Why is isododecane used as a volatile carrier?

Its low molecular weight and branched structure give a fast-drying, light feel, making it a volatile carrier base for long-wear color cosmetics and sunscreens. Review the SDS for flash point and volatility data when formulating.

Is isododecane available in bulk?

RawSource supplies isododecane in bulk to formulators. Request a bulk quote with your target volume along with a CoA and SDS for purity and handling.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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