Molekula
Stearic Acid USP
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch
Stearic Acid USP is a saturated fatty acid widely used as a lubricant, release agent, and emulsifier in pharmaceutical and cosmetic formulations. It also serves as a raw material for zinc and aluminium stearates and is used to harden soaps, soften plastics and make candles. This product has the CAS number 57-11-4 and carries no signal word. Molekula supplies Stearic Acid USP from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.
Overview
- SKU
- 90035817
- CAS Number
- 57-11-4
- IUPAC Name
- octadecanoic acid
- EC Number
- 200-313-4
- Exact Mass
- 284.2715
- SMILES
- CCCCCCCCCCCCCCCCCC(=O)O
- InChIKey
- QIQXTHQIDYTFRH-UHFFFAOYSA-N
- InChI
- InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
- PubChem CID
- 5281
Synonyms
- 1-Heptadecanecarboxylic acid
- Cetylacetic acid
- Industrene R
- n-Octadecanoic acid
- Octadecanoic acid
- Octadecansaeure
- Pearl stearic
- Stearex Beads
- stearic acid
- Stearophanic acid
Literature values
Published physical properties of the substance, not batch specifications.
- Appearance
- Colorless, wax-like solid
- Odour
- Slight odor suggesting tallow
- Melting Point
- 68.8 °C
- Boiling Point
- 383 °C
- Density
- 0.94-0.83 (relative, water = 1)
- Water Solubility
- 0.568 mg/L at 25 °C
- Solubility (other solvents)
- Slightly soluble in ethanol, benzene; soluble in acetone, chloroform, carbon disulfide
- Vapour Pressure
- 133 Pa at 174 °C
- Refractive Index
- 1.4299
- log P (octanol/water)
- 8.23
Source: PubChem CID 5281 (HSDB, DrugBank, ICSC)
See all 4 other grades of CAS 57-11-4 →
Frequently asked questions
What is Stearic Acid USP used for?
Stearic Acid USP is commonly used as a lubricant, release agent, and binder in the pharmaceutical, cosmetic, and food industries.
What is the chemical formula and molecular weight of Stearic Acid?
The chemical formula for Stearic Acid is C18H36O2, and it has a molecular weight of 284.48 g/mol.
How should Stearic Acid be stored?
It should be stored in a cool, dry place in a tightly closed container, away from strong oxidizing agents.
What grade of Stearic Acid is available?
This product is supplied in USP (United States Pharmacopeia) grade.
Can Molekula supply Stearic Acid in bulk?
Yes, Molekula can supply Stearic Acid in various quantities ranging from small research amounts to bulk industrial volumes.
What documentation comes with the order?
Every order is supplied with a Certificate of Analysis (CoA) and a Safety Data Sheet (SDS).
Related products
Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.