Stearic acid
USP/1621008 - United States Pharmacopeia (USP) Reference Standard
Synonym: 1-
CAS Number: 57-11-4
Empirical Formula (Hill Notation): C18H36O2
Molecular Weight: 284.48
MDL Number: MFCD00002752
Linear Formula: CH3(CH2)16COOH
Product Type: Chemical
| API family | stearic acid |
| application(s) | pharmaceutical (small molecule) |
| bp | 361 °C (lit.) |
| density | 0.845 g/cm3 |
| format | neat |
| grade | pharmaceutical primary standard |
| InChI | 1S/C18H36O2/c1-2-3-4-5-6- |
| InChI key | QIQXTHQIDYTFRH-UHFFFAOYSA |
| manufacturer/tradename | USP |
| mp | 67-72 °C (lit.) |
| SMILES string | CCCCCCCCCCCCCCCCCC(O)=O |
| solubility | acetone: soluble |
| benzene: freely soluble | |
| chloroform: freely soluble | |
| ethanol: soluble | |
| ether: freely soluble | |
| propylene glycol: soluble | |
| water: practically insoluble | |
| vapor pressure | 1 mmHg ( 173.7 °C) |
| Analysis Note: | These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind. |
| Application: | Stearic acid USP reference standard for use in specified quality tests and assays. Also used to prepare standard solution for assay and impurity analysis according to the given below monographs of United States Pharmacopeia (USP): • Stearic acid • Palmitic Acid • Sodium Stearate • Aluminum Monostearate |
| General description: | This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia   . |
| Other Notes: | Sales restrictions may apply. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | 235.4 °F - closed cup |
| Flash Point(C) | 113 °C - closed cup |
| bp | 361 °C (lit.) |
| mp | 67-72 °C (lit.) |
| Density | 0.845 g/cm3 |
| UNSPSC | 41116107 |