PHR1115 Supelco

Stearyl Alcohol

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym: 1-Octadecanol, Octadecyl alcohol, Stearyl alcohol

  • CAS Number 112-92-5

  • Linear Formula CH3(CH2)17OH

  • Molecular Weight 270.49

  •  Beilstein/REAXYS Number 1362907

  •  EC Number 204-017-6

  •  MDL number MFCD00002823

  •  PubChem Substance ID 329823136

  •  NACRES NA.24



Related Categories Additional Standards, Alcohols, Aliphatic, All Alphabetically Sorted, Analytical Standards,
Quality Level   300
grade   certified reference material
  pharmaceutical secondary standard
vapor density   9.3 (vs air)
vapor pressure   <0.01 mmHg ( 38 °C)
form   neat
autoignition temp.   842 °F
expl. lim.   ~8 %
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
mp   56-59 °C (lit.)
density   0.812 g/mL at 25 °C (lit.)
Featured Industry   Cleaning Products
Flavors and Fragrances
Food and Beverages
Personal Care
Pharmaceutical (small molecule)
format   neat
pharmacopeia traceability   traceable to PhEur S1350000
  traceable to USP 1622000
storage temp.   2-8°C
InChI   1S/C18H38O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3


General description

Stearyl Alcohol is added as a stiffening agent in cosmetics and pharmaceutical formulations. It is also utilized to enhance the water-holding capacity of ointments. Its other applications include the use in controlled-release tablets, suppositories, and microspheres.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.


Stearyl Alcohol may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations by gas chromatography.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.


To see an example of a Certificate of Analysis for this material enter LRAA7161 in the slot below. This is an example certificate only and may not be the lot that you receive.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
383.0 °F
Flash Point(C) 
195 °C


Certificate of Analysis (COA)

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Protocols & Articles

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