Linagliptin Impurity 4 CAS 2749405-42-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2749405-42-1 |
| Molecular Formula | C16H13BrN6O2 |
| Molecular Weight | 401.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Linagliptin Impurity 4 (CAS 2749405-42-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H13BrN6O2. Molecular weight: 401.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H13BrN6O2 |
| Molecular Weight | 401.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 6 |
Related Linagliptin Standards
- Linagliptin impurity 140 (CAS 2428491-17-0)
- Linagliptin impurity 125 (CAS CATO-C4X-1101125)
- Linagliptin Impurity 47 (CAS 2468656-63-3)
- Linagliptin Impurity 30 (CAS CATO-C4X-110130)
- Linagliptin Impurity 58 (CAS CATO-C4X-110158)
- Linagliptin impurity 152 (CAS CATO-C4X-1101152)
- Linagliptin impurity 116 (CAS CATO-C4X-1101116)
- Linagliptin Impurity 14 (CAS 666816-91-7)
Recommended Standards
- tert-Butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)benzylcarbamate (CAS 1798793-03-9)
- N'-(8-Bromo-9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-N,N-dimethylformimidamide (CAS 717876-75-0)
- (E)-6-(4-fluorophenoxy)nicotinaldehyde O-(4-bromobenzyl) oxime (CAS 866154-09-8)
- Dequalinium impurity 35 (CAS CATO-C4X-193635)
- Linagliptin Impurity 114 (CAS CATO-C4X-1101114)
- 7-(1,3-Dioxaindan-5-yl)-1-methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 879303-83-0)
- Prephenylmercapturic Acid (Mixture of Diastereomers)DISCONTINUED (CAS 122083-16-3)
- 1-(2-Bromobenzoyl)-1,4-diazepane (CAS 815650-74-9)
- 5-Methyluridine (CAS 1463-10-1)
- Semaglutide Impurity 75 (CAS CATO-C4X-2226175)
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