5-(2-Chlorophenyl)-8-ethyl-3-methyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine CAS 1389439-77-3
| CAS No. | 1389439-77-3 |
| Molecular Formula | C18H16ClN5 |
| Molecular Weight | 337.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2-Chlorophenyl)-8-ethyl-3-methyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine (CAS 1389439-77-3), molecular formula C18H16ClN5 and molecular weight 337.81 g/mol, is a CATO reference standard with documented purity and traceability.
5-(2-Chlorophenyl)-8-ethyl-3-methyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine (C18H16ClN5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(2-Chlorophenyl)-8-ethyl-3-methyl-2,10-dihydropyrazolo[3,4-b]pyrido[4,3-e][1,4]diazepine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H16ClN5 |
| Molecular Weight | 337.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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- 4-(2,6-Difluorobenzoyl)-N,N-dimethyl-1H-pyrrole-2-carboxamide (CAS 338404-16-3)
- (S)-2-(3,5-Dioxopiperazin-1-yl)propanoic acid (CAS 244161-09-9)
- 3,3-Dimethyl-2,5-dioxopyrrolidin-1-yl acetate (CAS 428861-30-7)
- 4-Phenyl-3-(trimethylsilyl)-1H-pyrazole (CAS 16037-44-8)
- 1-(1,3-benzodioxol-5-ylmethyl)-1H-indole-2,3-dione (CAS 354781-32-1)
- Glucagon (19-29) (human, rat, porcine) (CAS 64790-15-4)
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