Date published: 2025-10-19

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Stearic acid (reagent grade) (CAS 57-11-4)

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Alternate Names:
1-Heptadecanecarboxylic acid; C18:0; Cetylacetic acid; Octadecanoic acid; Stearophanic acid
CAS Number:
57-11-4
Purity:
≥95%
Molecular Weight:
284.48
Molecular Formula:
C18H36O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Stearic acid (reagent grade) is a saturated fatty acid that is frequently used in various research disciplines. In material sciences, it is studied for its role as a processing aid and release agent in the production of plastics and rubber, where it helps in improving the durability and flexibility of these materials. In the field of surface science, Stearic acid (reagent grade) is utilized to create self-assembled monolayers on substrates, allowing researchers to investigate intermolecular forces and surface properties. It is also a common subject in the study of lipid bilayers and vesicle formation, contributing to a deeper understanding of cell membrane mimicry and chemical delivery systems. Furthermore, its use in the development of biodegradable surfactants and lubricants is explored, focusing on the sustainability aspect of industrial chemistry. Stearic acid (reagent grade)′s thermal properties are also of interest, particularly its melting behavior, which is essential in the analysis of phase transitions of fatty acids.


Stearic acid (reagent grade) (CAS 57-11-4) References

  1. Photo/Thermo Dual Stimulus-Responsive Liquid Marbles Stabilized with Polypyrrole-Coated Stearic Acid Particles.  |  Tsumura, Y., et al. 2022. ACS Appl Mater Interfaces. 14: 41618-41628. PMID: 36043393
  2. Preparation and characterization of lauric acid-stearic acid/expanded perlite as a composite phase change material.  |  Liu, X., et al. 2022. RSC Adv. 12: 23860-23868. PMID: 36093250
  3. Cryopreservation increases accumulation of exogenous stearic acid in mouse embryos.  |  Omelchenko, AN., et al. 2022. Cryobiology. 109: 44-52. PMID: 36179820
  4. Synthesis of a new hydrophobic coating film from stearic acid of buffalo fat.  |  Soliman, HM. and Zahran, HA. 2022. Sci Rep. 12: 18465. PMID: 36323708
  5. Diet containing stearic acid increased food intake in mice by reducing serum leptin compared with oleic acid.  |  Zhu, S., et al. 2023. Food Funct. 14: 990-1002. PMID: 36545693
  6. Factors Affecting the Hydrophobic Property of Stearic Acid Self-Assembled on the TiO2 Substrate.  |  Thennakoon, CA., et al. 2022. ACS Omega. 7: 48184-48191. PMID: 36591204
  7. Phenolic Compounds from Sonchus arvensis Linn. and Hemerocallis citrina Baroni. Inhibit Sucrose and Stearic Acid Induced Damage in Caenorhabditis elegans.  |  An, Q., et al. 2023. Molecules. 28: PMID: 36838695
  8. scd knockout activates β-oxidation of fatty acids via accumulating stearic acid (18:0) and induces anorexia in zebrafish.  |  Wu, W., et al. 2023. Gene. 871: 147431. PMID: 37068693
  9. Design and Preclinical Evaluation of Nicotine-Stearic Acid Conjugate-Loaded Solid Lipid Nanoparticles for Transdermal Delivery: A Technical Note.  |  Renukuntla, J., et al. 2023. Pharmaceutics. 15: PMID: 37111529
  10. Significant Improvement of Thermal Conductivity of Polyamide 6/Boron Nitride Composites by Adding a Small Amount of Stearic Acid.  |  Fang, H., et al. 2023. Polymers (Basel). 15: PMID: 37112035
  11. Stearic Acid Treatment Enhancing Corrosion Resistance of Biomimetic-Deposited Calcium Phosphate Dihydrate Coating on Medical Degradable Magnesium Alloy.  |  Wang, T., et al. 2023. ACS Biomater Sci Eng. 9: 3227-3238. PMID: 37252838
  12. Aqueous Binary Mixtures of Stearic Acid and Its Hydroxylated Counterpart 12-Hydroxystearic Acid: Cascade of Morphological Transitions at Room Temperature.  |  Almeida, M., et al. 2023. Molecules. 28: PMID: 37298812
  13. Catalytic Hydrothermal Deoxygenation of Stearic Acid with Ru/C: Effects of Alcohol- and Carboxylic Acid-Based Hydrogen Donors.  |  Wang, J., et al. 2023. ACS Omega. 8: 19969-19975. PMID: 37305242

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Stearic acid (reagent grade), 100 g

sc-484614
100 g
$46.00

Stearic acid (reagent grade), 1 kg

sc-484614A
1 kg
$71.00

Stearic acid (reagent grade), 5 kg

sc-484614B
5 kg
$153.00