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) | USP Biologics pharmaceutical (small molecule) |
| bp | 361 °C (lit.) |
| density | 0.845 g/cm3 |
| form | solid |
| 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, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as: • Palmitic Acid • Calcium Stearate • Sodium Stearate • Aluminum Monostearate • Glycerin Suppositories • Magnesium Stearate |
| General description: | Stearic acid, a saturated fatty acid, is essential in biologic drug formulations, where it is used to stabilize emulsions and to prepare lipid-based carriers for drug delivery. Its use in the synthesis of solid lipid nanoparticles helps in enhancing the bioavailability of poorly soluble drugs. Stearic acid also plays a role in improving the pharmacokinetic profile of biologics, contributing to their stability and efficacy in therapeutic applications. The United States Pharmacopeia (USP) provides quality standards for biologics to ensure their safety, efficacy, and quality throughout the manufacturing process. These standards assist manufacturers in adhering to regulatory requirements and help safeguard public health by reducing risks associated with biologics. |
| 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. |
| Other Notes: | This product is part of USP Biologics Program. |
| Other Notes: | 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 Pha |
| Other Notes: | 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 . |
| 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 |