Active ingredientTolnaftateCat. No. P-T155-001CAS 2398-96-1
Drag to rotate
Impurity or related compound · Tolnaftate family
Pharmaceutical analytical standard1-(Phenylazo)-2-naphthol
Synonyms: Tolnaftate Impurity 6 (Sudan I), 1-phenyldiazenylnaphthalen-2-ol, C.I. Solvent Yellow 14, Sudan Orange RA, Grasal Orange, Calcogas M, Orange Pel, Ceres Orange R, Soudan I, Sudan Orange R, Pyronalorange, Carminaph, Dunkelgelb, Fat Orange I, Fat Orange RS, Fettorange lg, Cerotinorange G, Organol Orange, Stearix Orange, Calcogas Orange NC, Fettorange R, Motiorange R, Scharlach B, Fettorange 4a, Grasan Orange R, Sansel Orange G, Enial Orange I, Oleal Orange R, Atul Orange R, Resinol Orange R, Somalia Orange I, Sudan J, Fat Orange G, Fat Orange R, Resoform Orange G, Waxoline Yellow I, Lacquer Orange VG, Waxakol Orange GL, Fat Orange 4A, Fat Soluble Orange, Orange A L'Huile, Silotras Orange TR, Waxoline Yellow IM, Waxoline Yellow IP, Waxoline Yellow IS, Dispersol Yellow PP, Orange Insoluble Olg, Tertrogras Orange SV, Morton Orange Y, Sudan Orange RA New, Orange Soluble A L'Huile, Benzeneazo-beta-naphthol, Plastoresin Orange F4A, Orange Resenole No. 3, Solvent Yellow No. 14, Disperse Yellow 97, Benzene-1-azo-2-naphthol, Fettorange IG, Orange Resenole 3, Zlut rozpoustedlova 14, C.I. Disperse Yellow 97, alpha-Phenylazo-beta-naphthol, NSC 51524, NSC 11227, Sudan I, Solvent Yellow 14, Scarlet B, Tolnaftate Impurity 5, Sudangelb, Orange gl, Waxoline Orange EP-FW, Sudan I (C.I. 12055)
- Cat. No.
- P-T155-008
- CAS
- 842-07-9
- Alternative CAS
- 40339-35-3 (alternative CAS, same compound)
- 71351-99-0 (alternative CAS, same compound)
- Formula
- C16H12N2O
- Molecular weight
- 248.28 g/mol
- Category
- Impurity or related compound
Family: Tolnaftate
A topical antifungal of the thiocarbamate class, discovered in Japan in 1962 by chemist Teruhisa Noguchi and used against athlete's foot, ringworm and other skin fungal infections; in most countries it is sold over the counter.
Did you know?It is not an azole: like terbinafine it appears to block squalene epoxidase, an enzyme fungi need to make the ergosterol of their membranes, and it is especially useful against ringworm caught from pets.
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
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
More products in the Tolnaftate family
Active ingredientTolnaftateCat. No. P-T155-001CAS 2398-96-1
Pharmacopoeial impurityTolnaftate EP Impurity ACat. No. P-T155-002CAS 135-19-3
Pharmacopoeial impurityTolnaftate EP Impurity BCat. No. P-T155-003CAS 127084-74-6
Pharmacopoeial impurityTolnaftate EP Impurity DCat. No. P-T155-004CAS 696-44-6
Pharmacopoeial impurityTolnaftate EP Impurity D HClCat. No. P-T155-005CAS 17650-11-2
Isotopically labelledTolnaftate-d7Cat. No. P-T155-006CAS 1329835-64-4
NitrosamineN-Nitroso Tolnaftate EP Impurity DCat. No. P-T155-007CAS 17485-25-5
Impurity2,2'-Dinaphthyl EtherCat. No. P-T155-009CAS 613-80-9Frequently 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.