Active ingredient · Oxybenzone family
Pharmaceutical analytical standardOxybenzone
Synonyms: 2-Hydroxy-4-methoxybenzophenone, Benzophenone-3, Advastab 45, Anuvex, Methanone, (2-hydroxy-4-methoxyphenyl)phenyl-, Ongrostab HMB, Oxibenzona, Usaf cy-9, Spectra-sorb UV 9, Chimassorb 90, Syntase 62, Uvistat 24, Cyasorb UV 9, Sunscreen UV-15, Uvinul M40, Escalol 567, NSC 7778, Oxibenzonum, Cyasorb UV 9 Light Absorber, Viosorb 110, Benzophenone, 2-hydroxy-4-methoxy-, Tinosorb b 3, Bebak Baby Sun, Eusolex-4360, HMBP cpd, Oxyben, Neo heliopan BB, Pharmakon1600-01500451, NSC 757260
- Cat. No.
- P-O067-001
- CAS
- 131-57-7
- Alternative CAS
- N/A
- Formula
- C14H12O3
- Molecular weight
- 228.25 g/mol
- Category
- Active ingredient (API)
A UV filter of the benzophenone family, also known as benzophenone-3: it absorbs UVB and short-wave UVA rays and is used in sunscreens and cosmetics. It was first synthesised in Germany in 1906.
Did you know?It also occurs in nature, in various flowering plants, and acts as a stabiliser against ultraviolet light in plastics, resins and nail polishes.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
Shipped under controlled temperature when the molecule requires it.
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Sent with every order.
Follow your shipment live, from our warehouse to your lab.
More products in the Oxybenzone family
Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.
