Methyl stearate

CAS Number
112-61-8
EC Number
203-990-4

What is Methyl stearate?

Methyl stearate (CAS 112-61-8) is a fatty acid methyl ester derived from stearic acid, produced primarily by esterification of stearic acid with methanol.

Where is Methyl stearate used?

  • Lubricants and metalworking: base fluid or additive that reduces friction in machining and metal processing
  • Personal care: emollient and emulsifier in creams, lotions and hair conditioners
  • Food: processing aid and release agent in baked goods and confectionery
  • Chemical intermediate in the synthesis of fatty alcohols and surfactants
  • It also functions as a lubricant, emulsifier and surface-active agent in industrial and cosmetic manufacturing.

Commercial specifications

  • Purity commonly 95% or higher, depending on grade
  • Bulk quantities typically in drums or flexi-bags

Other Names (Synonyms)

Stearic acid, methyl ester|Octadecanoic acid,methyl ester|N-Octadecanoic acid, methyl ester|Methyl N-octadecanoate|Methyl ester of octadecanoic acid|Methyl (Z)-9-octadecenoate|Metholene 2218|Kemester 9718

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What are the physical properties of Methyl stearate?

Melting Point 39.1 °C
Boiling Point 443 °C
Density 0.8498 g/cm³ @ Temp: 40 °C
Flash Point >230 °F
Appearance off-white to cream or light yellow paste
Color Off-white to cream or light yellow
Odor at 100.00 %. oily waxy
Form Paste
Water Solubility Soluble in chloroform. Insoluble in water.
Refractive Index 1.4241 (estimate)
Log P 8.350

Which trade and regulatory codes apply to Methyl stearate?

HS Code 29157090
Storage Class 11 - Combustible Solids
WGK (Germany) 1
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