Padimate O
USP/1491503 - United States Pharmacopeia (USP) Reference Standard
Synonym: 2-Ethylhexyl 4-
CAS Number: 21245-02-3
Empirical Formula (Hill Notation): C17H27NO2
Molecular Weight: 277.40
MDL Number: MFCD00017526
Linear Formula: (CH3)2NC6H4CO2CH2CH(C2H5)(CH2)3CH3
Product Type: Chemical
| API family | padimate |
| application(s) | USP Biologics pharmaceutical (small molecule) |
| bp | 325 °C (lit.) |
| density | 0.995 g/mL at 25 °C (lit.) |
| form | liquid |
| format | neat |
| grade | pharmaceutical primary standard |
| InChI | 1S/C17H27NO2/c1-5-7-8-14( |
| InChI key | WYWZRNAHINYAEF-UHFFFAOYSA |
| manufacturer/tradename | USP |
| refractive index | n |
| SMILES string | CCCCC(CC)COC(=O)c1ccc(cc1 |
| 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. |
| General description: | Padimate O, an ester of para-aminobenzoic acid, is used in biologic and pharmaceutical formulations, particularly in sunscreens and topical products. It acts as a UV filter, providing protection against harmful ultraviolet radiation. In biologic product development, Padimate O helps ensure the stability and safety of topical biologics, contributing to the effectiveness of these formulations in protecting the skin. 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 | WGK 2 |
| Flash Point(F) | 235.4 °F - closed cup |
| Flash Point(C) | 113 °C - closed cup |
| bp | 325 °C (lit.) |
| Density | 0.995 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 41116107 |

