Darunavir Impurity 35 CAS CATO-C4X-160635
| CAS No. | CATO-C4X-160635 |
| Molecular Formula | C44H60N6O8S2 |
| Molecular Weight | 865.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Darunavir Impurity 35 (CAS CATO-C4X-160635) is a certified pharmaceutical impurity reference standard with the molecular formula C44H60N6O8S2 and a molecular weight of 865.11 g/mol.
Darunavir Impurity 35 (C44H60N6O8S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C44H60N6O8S2 |
| Molecular Weight | 865.11 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Darunavir Standards
- Darunavir Impurity 39 (CAS CATO-C4X-160639)
- Darunavir Impurity 34 (CAS CATO-C4X-160634)
- Darunavir-N-glucuronide, 96% (CAS 1159613-25-8)
- Darunavir O-β-D-glucuronide, 96% (CAS 1159613-27-0)
- Darunavir Impurity 24 (CAS 1971057-59-6)
- Darunavir impurity 31 (CAS 1291087-81-4)
- Darunavir Impurity 20 (CAS 2307745-62-4)
- Darunavir impurity 30 (CAS CATO-C4X-160630)
Recommended Standards
- Bis(2,3-dimethyl-1,4-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene(1-))iron(II) (CAS 869986-09-4)
- Cy5.5 acid (tri so3) (CAS 210834-26-7)
- Teneligliptin impurity 21 (CAS 2459971-79-8)
- Rifamdin (CAS 89499-17-2)
- Carbidopa Impurity 32 (CAS CATO-C4X-231032)
- Ticagrelor impurity 162 HCl (CAS 1643378-54-4)
- Venlafaxine EP Impurity D HCl (CAS 93413-90-2)
- (E)-4-(3,3-dimethyl-5-oxocyclohexylideneamino)benzoic acid 4-(3,3-Dimethyl-5-oxo-cyclohexylideneamino)-benzoic acid 436811-31-3 (CAS 436811-31-3)
- 3-(cyclopropylmethyl)-8-(trifluoromethyl)-7-vinyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 1254982-02-9)
- Ethyl 6-chloro-5-methoxy-2-methylnicotinate (CAS 919354-48-6)
- N-(4,6-Dimethyl-2-Pyridinyl)-2,2,2-Trifluoro-Acetamide (CAS 570425-93-3)
- 1,4-dithiine-2,3,5,6-tetracarbonitrile (CAS 2448-55-7)
- 2-(5-Amino-4-carbamoyl-1H-pyrazol-3-yl)acetic acid (CAS 23244-84-0)
- Vancomycin Hexapeptide (CAS 115236-65-2)
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