Terbinafine Impurity 6 CAS 99473-14-0
| CAS No. | 99473-14-0 |
| Molecular Formula | C21H23NO2 |
| Molecular Weight | 321.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 321.41 g/mol gives Terbinafine Impurity 6 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Terbinafine Impurity 6 (CAS 99473-14-0), a certified reference material (molecular formula C21H23NO2, MW 321.41 g/mol) for analytical method development and quality control.
Based on its molecular formula C21H23NO2, Terbinafine Impurity 6 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 321.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H23NO2 |
| Molecular Weight | 321.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Related Terbinafine Standards
- Terbinafine EP Impurity F (CAS 926281-74-5)
- Terbinafine Impurity 5-d7 (CAS 1185238-58-7)
- Terbinafine Impurity 1 (CAS 134274-69-4)
- Terbinafine Impurity 48 (CAS CATO-C4X-133848)
- Terbinafine Impurity 49 (CAS CATO-C4X-133849)
- Terbinafine Impurity N2 (CAS 99473-15-1)
- Terbinafine Carboxylic Acid Methyl Ester (Oxalate) (CAS 1076199-76-2)
- Terbinafine impurity 34 (CAS CATO-C4X-133834)
Recommended Standards
- N8-Feruloylspermidine (CAS 95687-20-0)
- tert-Butyl (2-(2-(4-(2-hydroxyethoxy)butoxy)ethoxy)ethyl)carbamate (CAS 2681390-76-9)
- N1-Feruloylspermidine (CAS 70185-60-3)
- tert-Butyl (3-(benzyloxy)-1-(hydroxymethyl)cyclopentyl)carbamate (CAS 924817-96-9)
- 1-(Trifluoromethyl)cyclopropane-1-carboximidamide hydrochloride (CAS 2306272-14-8)
- 5-Amino-N-(3-methoxyphenyl)-1-(2-methylbenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899738-01-3)
- 1-(6-Methylbenzo[d]thiazol-2-yl)pyrrolidine-2,5-dione (CAS 113408-21-2)
- n-Isopentyl-2-nitroaniline (CAS 160918-08-1)
- Ethyl (R)-2-ethoxy-3-(4-hydroxyphenyl)propanoate (CAS 222555-05-7)
- 3-(3-Nitrophenyl)-1H-pyrazol-5-amine hydrochloride (CAS 850869-65-7)
- Bis(2,6-dimethylphenyl)methanol (CAS 22004-65-5)
- 3-Bromo-7-(chlorodifluoromethyl)-2-methyl-5-[4-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine (CAS 439097-20-8)
- (R)-2,2-Dimethyl-1-(5-methylfuran-2-yl)propan-1-amine hydrochloride (CAS 2170760-93-5)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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