N1-Nitroso Tryptophan EP Impurity I CAS 23708-74-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 23708-74-9 |
| Molecular Formula | C13H13N3O3 |
| Molecular Weight | 259.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
N1-Nitroso Tryptophan EP Impurity I (CAS 23708-74-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C13H13N3O3. Molecular weight: 259.26 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C13H13N3O3 |
| Molecular Weight | 259.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related N Standards
- N-Nitroso Linagliptin impurity 138 (CAS CATO-C4X-1101138)
- N-nitroso Cyclen Impurity 129(Gadobutrol Impurity 129) (CAS CATO-C4X-2120129)
- N-Nitroso Olanzapine EP Impurity B (CAS CATO-C4X-117851)
- N-Nitroso Aripiprazole EP Impurity B (CAS 2989508-28-1)
- 2-methyl-10-nitroso-10H-benzo[b]thieno[2,3-e][1,4]diazepin-4-amine (CAS CATO-C3D-262113)
- 1-nitroso-3-(1-nitrosopiperidin-2-yl)-1H-indole (CAS 857775-93-0)
- N-Nitroso Dimethoate (CAS 63124-33-4)
- N-Nitroso Eltrombopag Amino Impurity 104 (CAS CATO-C4X-1198104)
Recommended Standards
- 3989-13-7 Benzene,1-bromo-3-[2-(trimethylsilyl)ethynyl]- CTK4I2053 (CAS 3989-13-7)
- Regorafenib Impurity 40 (CAS CATO-C4X-104740)
- ((2-bromophenyl)ethynyl)trimethylsilane (2-Bromophenylethynyl)trimethylsilane 38274-16-7 (CAS 38274-16-7)
- Canagliflozin Impurity 35 (CAS 1951467-28-9)
- Mesalazine Impurity 25 (CAS 42753-75-3)
- 3-Ethynyl-1-(1-methylethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 1189793-01-8)
- 2,4-Difluoro-5-nitrobenzonitrile (CAS 67152-20-9)
- 3-[(2-methylpropane-2-sulfinyl)methyl]aniline (CAS 28288-33-7)
- Metolachlor mercapturate (CAS 159956-64-6)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com