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Merck
CN

1214004

USP

Dioxybenzone

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

2,2′-Dihydroxy-4-methoxybenzophenone, Dioxybenzone

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About This Item

Linear Formula:
CH3OC6H3(OH)COC6H4OH
CAS Number:
131-53-3
Molecular Weight:
244.24
NACRES:
NA.24
PubChem Substance ID:
329749638
UNSPSC Code:
41116107
MDL number:
MFCD00002218

Key Documents

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Product Name

Dioxybenzone, United States Pharmacopeia (USP) Reference Standard

InChI

1S/C14H12O4/c1-18-9-6-7-11(13(16)8-9)14(17)10-4-2-3-5-12(10)15/h2-8,15-16H,1H3

SMILES string

COc1ccc(c(O)c1)C(=O)c2ccccc2O

InChI key

MEZZCSHVIGVWFI-UHFFFAOYSA-N

grade

pharmaceutical primary standard

API family

oxybenzone

manufacturer/tradename

USP

bp

170-175 °C/1 mmHg (lit.)

mp

73-75 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

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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

Dioxybenzone 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:
  • Dioxybenzone and Oxybenzone Cream

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

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Yoko Watanabe et al.
Toxicology and applied pharmacology, 282(2), 119-128 (2014-12-22)
Benzophenone-3 (2-hydroxy-4-methoxybenzophenone; BP-3) is widely used as sunscreen for protection of human skin and hair from damage by ultraviolet (UV) radiation. In this study, we examined the metabolism of BP-3 by rat and human liver microsomes, and the estrogenic and
Rebecca K Moos et al.
International journal of hygiene and environmental health, 217(8), 845-853 (2014-07-11)
We developed a fast, selective and sensitive on-line LC/LC-MS/MS method for the simultaneous determination of nine parabens and seven environmental phenols in urine. Parabens are widely used as antimicrobial preservatives. Bisphenol A, triclosan, triclocarban, 2-phenylphenol, and benzophenones are used inter

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