N-Desethyl Vardenafil-d8 CAS 1184985-26-9
| CAS No. | 1184985-26-9 |
| Molecular Formula | - |
| Molecular Weight | 468.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
N-Desethyl Vardenafil-d8 (CAS 1184985-26-9), molecular formula C21H20D8N6O4S and molecular weight 468.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to deuterium isotope labeling, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, N-Desethyl Vardenafil-d8 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 468.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H20D8N6O4S |
| Molecular Weight | 468.60 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related N Standards
- N-Desethyl-N-Methyl Vardenafil (CAS 224785-87-9)
- Desethyl Sildenafil-d3 (CAS 1346603-75-5)
- O-Desethyl O-Propyl Sildenafil (CAS 877777-10-1)
- N-Desethyl Acetildenafil (CAS 147676-55-9)
- O-Desethyl-O-propyl Methisosildenafil (CAS 1391053-82-9)
- Desethyl Carbodenafil (CAS 1027192-92-2)
- Phenyl 3-Desethyl 3-Propyl Carbodenafil (CAS 2711006-61-8)
- O-Desethyl Candesartan (CAS 168434-02-4)
Recommended Standards
- Repaglinide N-Oxide (CAS 121167-81-5)
- N-Benzyl N-Demethyl Trimebutine-d5 (CAS 1330189-05-3)
- Ivabradine Impurity 31 (CAS 167072-91-5)
- S-acetyl-PEG6-Boc (CAS 1818294-39-1)
- 2-(Hydroxymethyl)-4-methoxybenzoic Acid (CAS 65399-12-4)
- 1-(3-Fluorophenyl)-3-methyl-1h-pyrazole-5-carboxylic acid (CAS 756752-22-4)
- 2-(Aminomethyl)-7-chloronaphthalene (CAS 1261732-17-5)
- 3-Acetamido-5-amino-2,6-diiodobenzoic Acid (CAS 1713-08-2)
- n-[(4-ethoxyphenyl)methylidene]hydroxylamine (CAS 154238-38-7)
- Peryleno[1,12-bcd]thiophene (CAS 31473-75-3)
- N,N'-(ethane-1,2-diyl)bis(4-methyl-N-(thiophen-2-ylmethyl)benzamide) (CAS 338775-19-2)
- Methyl n-(4-amino-2-fluorophenyl)carbamate (CAS 1094107-83-1)
- (3-Chloro-4-fluorophenyl)(4-chlorophenyl)methanol (CAS 844683-34-7)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com