Tryptophan impurity 43 CAS 77872-41-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 77872-41-4 |
| Molecular Formula | C13H18N2O |
| Molecular Weight | 218.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Tryptophan impurity 43 (CAS 77872-41-4) pharmacopoeial impurity standards reference standard. Molecular formula: C13H18N2O. Molecular weight: 218.29 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C13H18N2O |
| Molecular Weight | 218.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 2 |
Related Tryptophan Standards
- L-Tryptophan-13C11-15N2 (CAS 202406-50-6)
- Tryptophan Impurity 15 (CAS CATO-C4X-137315)
- Tryptophan Impurity 17 (CAS 32999-55-6)
- Tryptophan EP Impurity G (CAS 21704-80-3)
- Tryptophan EP Impurity H (CAS 6052-68-2)
- DL-Tryptophan-d8 (CAS 1233395-85-1)
- D-Tryptophan-2′,4′,5′,6′,7′-d5 (indole-d5) (CAS 1202359-57-6)
- L-Tryptophan-d5 (CAS 62595-11-3)
Recommended Standards
- Dorzolamide Impurity 2 (CAS 147128-77-6)
- Almotriptan impurity 18 (CAS CATO-C4X-153818)
- Ambroxol Impurity 84 (CAS CATO-C4X-108584)
- Paliperidone Impurity 39 (CAS CATO-C4X-1724139)
- Lenvatinib Impurity 125 (CAS CATO-C4X-1140125)
- 4,4,4-Trifluoro-3-(tetrahydro-2h-pyran-3-yl)butanoic acid (CAS 1341160-91-5)
- N,N-dimethyl-1,4-diazepane-1-sulfonamide hydrochloride (CAS 1803580-76-8)
- 2-(((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)(methyl)amino)ethan-1-ol (CAS 73120-83-9)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)pyrimidine (CAS 2417014-06-1)
- Tetrapeptide-3 (CAS 827306-97-8)
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