DESCRIPTION
Isostearic acid, also known as iso-octadecanoic acid, is an branched saturated fatty acid derived from vegetable oils.
With the chemical formula of CH3(CH2)14COOH and CAS number30399-84-9 / 2724-58-5, it appears as a waxy white solid at room temperature.
Compared to straight-chain stearic acid, isostearic acid contains a methyl branch on its carbon chain that gives it exceptional properties.
CAS Number: 2724-58-5
EINECS: 220-336-3
The methyl branch results in a lower melting point (around 52-55°C) and imparts greater solubility in oil phases.
Isooctadecanoic Acid (Isostearic Acid) also exhibits superior viscosity characteristics.:
Isooctadecanoic Acid (Isostearic Acid) is a lightly-branched, liquid fatty acid produced by the reaction of oleic acid with a natural mineral catalyst – there is no chemical addition in this reaction, isostearic acid is based 100% on the parent oil or fat.
Isooctadecanoic Acid (Isostearic Acid) is used in applications which require a liquid fatty acid with exceptional stability: thermal stability in the case of a lubricant, odour stability for a cosmetic formulation, and oxidation stability for products with long shelf-life requirements.
The branching structure of isostearic acid also enhances its dispersing power, and Isooctadecanoic Acid (Isostearic Acid) is used in cosmetic and industrial applications for the stabilisation of pigments and mineral particles in oils and solvents.
Isostearic acid is a fatty acid that is used as an emollient in pharmaceutical preparations.
Isostearic acid has been shown to have skin-moisturizing and anti-inflammatory properties, which are due to its ability to inhibit the activity of phospholipase A2.
Isostearic acid also has a high degree of chemical stability and adsorption capacity.
Its adsorption mechanism is not yet well understood, but it appears to be related to its hydroxyl group.
This compound has been used successfully in the treatment of congestive heart failure and can prevent the accumulation of lipids on the surface of blood vessels, thereby reducing atherosclerosis. Isostearic acid also functions as a substrate for the synthesis of isovaleric acid, which can be used as a fragrance ingredient in cosmetic products.
Isooctadecanoic Acid (Isostearic Acid) is a methyl-branched fatty acid that is heptadecanoic acid (margaric acid) substituted by a methyl group at position 16.
Isooctadecanoic Acid (Isostearic Acid) is a branched-chain saturated fatty acid, a long-chain fatty acid and a methyl-branched fatty acid.
Isooctadecanoic Acid (Isostearic Acid) is functionally related to a heptadecanoic acid.
Isooctadecanoic Acid (Isostearic Acid) is a natural product found in Aristolochia grandiflora, Streptomyces, and other organisms with data available.
Isooctadecanoic Acid (Isostearic Acid) is a fatty acid molecule with an 18-carbon atom chain backbone.
Isooctadecanoic Acid (Isostearic Acid) is an isomer of stearic acid, meaning that they both have a chemical formula of C18H36O2, but differ in the arrangement of their atoms.
While stearic acid has a linear carbon chain with 18 carbon atoms, isosteric acid as a carbon chain with 17 atoms and a single carbon branch at the 16th carbon atom.
Its chemical structure can be represented as (CH3)2CH(CH2)14CO2H.
Isooctadecanoic Acid (Isostearic Acid) is found naturally in meat products and vegetable oils.
Isooctadecanoic Acid (Isostearic Acid) has a wide range of industrial uses.
Isooctadecanoic Acid (Isostearic Acid) is mainly used as an additive in adhesives or lubricants for both paints and personal care products
USES OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
Isooctadecanoic Acid (Isostearic Acid) is Mainly used as cosmetic raw materials.
Isooctadecanoic Acid (Isostearic Acid) is also used for lubricating oil, plastic processing lubricant and various lipids.
Because of it owned branch chain, its melting point is lower than stearic acid, and it has good performance works at low temperature.
Its various lipids are highly resistant to alkali, and they can play best characteristics when used in alkaline emulsification systems.
Its features make them attractive additives in the field of engine and gear lubricants.
Owned features : low pour points of acids and derivatives, good oxidative and hydrolytic stability.
Stable solubility in various solvents, low viscosity of organic solvent solutions and good lubricity, etc.
Isooctadecanoic Acid (Isostearic Acid) is a substitute for naphthenic acid and 7-9 acid in ion exchange extraction, environmental friendly and non-polluting.
Isooctadecanoic Acid (Isostearic Acid) is chemically, a carboxyl group attached to alkyl chain, methylated, branched at various carbons makes it much more stable compared to other linear chain fatty acids, including oxidation potential.
Isooctadecanoic Acid (Isostearic Acid) can be used as a lubricant, that can improve flow of a powder mixture.
Isooctadecanoic Acid (Isostearic Acid) has excellent spreadability without oiliness, that can be easily used in a cosmetic which not only moisturizes skin but also does not leave any oily feel.
However, in cosmetic formulation it is used as a binder to form cake-like compact powder or eye shadow.
Isooctadecanoic Acid (Isostearic Acid) is also used in cleansing and emulsifying agent, because of presence of both ionic and nonionic groups.
Isooctadecanoic Acid (Isostearic Acid) is used in varieties of cosmetic and personal care products.
APPLICATIONS OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
In Personal Care And Cosmetics:
The excellent solubility of isostearic acid makes it an ideal emollient and thickening agent in cosmetic formulations.
Isostearic acid provides a smooth, silky feel to creams and lotions.
Isostearic acid is commonly used in lipsticks and balms due to its glossy texture.
Isostearic acid also functions as an effective lubricant and moisturizer in shaving creams and aftershaves.
INDUSTRIAL USES OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
The lubricating properties of isostearic acid are harnessed for metalworking fluids and lubricating greases.
Isooctadecanoic Acid (Isostearic Acid) is also utilized as a softener for plastics and synthetic rubbers. Isostearic acid can help adjust the viscosity index of lubricating oils.
In soaps and detergents, Isooctadecanoic Acid (Isostearic Acid) acts as a lime soap dispersant.
With its superior solubility, emolliency and customizable formulability, isostearic acid has diverse applications across cosmetics, toiletries, industrial lubricants and more.
Its branched structure unlocks enhanced functional performance.
As a plant-based specialty chemical, isostearic acid enables the development of sustainable and highly effective products.
STORAGE OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
Containers of this material may be hazardous when empty since they retain product residues (vapors, liquid)
Do not store at a temperature exceeding 80 °c
Observe all warnings and precautions listed for the product
Outside or detached storage is recommended
Polymerization or oxidation of the unsaturated bonds may occur
Store in a dry, cool, well-ventilated area
Store in the dark
Use only containers, joints, pipes, etc., made in a material suitable for use with fatty acids
SAFETY INFORMATION ABOUT ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
First aid measures:
Description of first aid measures:
General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact with this product.
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product
CHEMICAL AND PHYSICAL PROPERTIES OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
XlogP3: 7.20 (est)
Molecular Weight: 284.48332000
Formula: C18 H36 O2
Appearance: white solid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Boiling Point: 400.00 to 401.00 °C. @ 760.00 mm Hg (est)
Flash Point: 438.00 °F. TCC ( 225.70 °C. ) (est)
logP (o/w): 7.674 (est)
Soluble in:
water, 0.007116 mg/L @ 25 °C (est)
Molecular Weight
284.5 g/mol
XLogP3
7.2
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
15
Exact Mass
284.271530387 g/mol
Monoisotopic Mass
284.271530387 g/mol
Topological Polar Surface Area
37.3Ų
Heavy Atom Count
20
Formal Charge
0
Complexity
212
Isotope Atom Count
0
Defined Atom Stereocenter Count
0
Undefined Atom Stereocenter Count
0
Defined Bond Stereocenter Count
0
Undefined Bond Stereocenter Count
0
Covalently-Bonded Unit Count
1
Compound Is Canonicalized
Yes
SYNONYMS OF ISOOCTADECANOIC ACID (ISOSTEARIC ACID):
2-methyl-heptadecanoic acid
isostearate
isostearic acid
ISOSTEARIC ACID
Isooctadecanoic acid
16-METHYLHEPTADECANOIC ACID
2724-58-5
30399-84-9
Prisorine 3509
Heptadecanoic acid, 16-methyl-
16-methyl margaric acid
16-methyl-heptadecanoic acid
LZM5XA0ILL
CHEBI:84896
(+)-Isostearic acid
UNII-LZM5XA0ILL
EINECS 220-336-3
16-methylmargaric acid
DSSTox_CID_7963
EMERSOL 873
DSSTox_RID_78624
DSSTox_GSID_27963
SCHEMBL15489
CHEMBL1865303
DTXSID1040790
16-METHYLHEPTADECANOICACID
XDOFQFKRPWOURC-UHFFFAOYSA-N
Tox21_302276
LMFA01020014
HY-W127433
NCGC00164392-01
NCGC00164392-02
NCGC00255115-01
AS-57253
Isostearic acid, >=97% (capillary GC)
CAS-30399-84-9
CS-0185665
C20356
D92986
J-016709
W-109211
Q27158161
