Dioxybenzone

Name: Dioxybenzone
Brand: Vaqora Chemicals
SKU: VQ-032894

About Dioxybenzone

Listed under CAS 131-53-3, Dioxybenzone is an API reference standard available from Vaqora Chemicals. With the molecular formula C14H12O4, it has a molar mass of 244.24 g/mol. Its systematic (IUPAC) name is (2-hydroxy-4-methoxyphenyl)-(2-hydroxyphenyl)methanone. It is also known as Spectra-sorb UV 24 or Cyasorb UV 24.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a reference sample of the parent drug substance, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Dioxybenzone is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Dioxybenzone
Catalogue No.	VQ-032894
CAS Number	131-53-3
IUPAC name	(2-hydroxy-4-methoxyphenyl)-(2-hydroxyphenyl)methanone
Molecular formula	C₁₄H₁₂O₄
Molecular weight	244.24 g/mol
Exact mass	244.0736
Grade	Reference Standard
HSN code	38229090
InChIKey	MEZZCSHVIGVWFI-UHFFFAOYSA-N
SMILES	COC1=CC(=C(C=C1)C(=O)C2=CC=CC=C2O)O
PubChem CID	8569

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	2 / 4
TPSA	66.8 Å²
Synonyms	Spectra-sorb UV 24, Cyasorb UV 24, (2-Hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)methanone, Advastab 47, Methanone, (2-hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)-, Cyasorb UV 24 Light Absorber, UV 24, Benzophenone, 2,2'-dihydroxy-4-methoxy-, (2-hydroxy-4-methoxy-phenyl)-(2-hydroxyphenyl)methanone, Benzophenone-8, UF 2, 2-(2-hydroxybenzoyl)-5-methoxyphenol

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Dioxybenzone?

The CAS Registry Number of Dioxybenzone is 131-53-3. It is also known as Spectra-sorb UV 24, Cyasorb UV 24, (2-Hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)methanone.

What is the molecular formula and molecular weight of Dioxybenzone?

Dioxybenzone has the molecular formula C14H12O4 and a molecular weight of 244.24 g/mol. Its IUPAC name is (2-hydroxy-4-methoxyphenyl)-(2-hydroxyphenyl)methanone.

Which grade and pack sizes of Dioxybenzone can I order?

We supply Dioxybenzone in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Dioxybenzone?

Yes. Every lot of Dioxybenzone is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Dioxybenzone be shipped internationally?

Yes. Dioxybenzone is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.