tert-Butyl 3-(4-chlorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate CAS 1188265-37-3
| CAS No. | 1188265-37-3 |
| Molecular Formula | C17H20ClN3O2 |
| Molecular Weight | 333.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including tert-Butyl 3-(4-chlorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate.
tert-Butyl 3-(4-chlorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate (CAS 1188265-37-3), molecular formula C17H20ClN3O2 and molecular weight 333.81 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, tert-Butyl 3-(4-chlorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate (C17H20ClN3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 333.81 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C17H20ClN3O2 |
| Molecular Weight | 333.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 3-(5-(Chloromethyl)-1,2,4-oxadiazol-3-yl)-N-(cyclohexylmethyl)benzamide (CAS 1119450-81-5)
- Iodine pentoxide (CAS 12029-98-0)
- 4-(5-(Chloromethyl)-1,2,4-oxadiazol-3-yl)-N-cyclohexyl-N-methylbenzamide (CAS 1119449-62-5)
- tert-Butyl 1-(chloromethyl)-5-hydroxy-1H-benzo[e]indole-3(2H)-carboxylate (CAS 122745-41-9)
- 5-(4-Fluorophenyl)-1,2,4-triazin-3-amine (CAS 107128-47-2)
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- (R)-2-amino-3-((4-methylbenzyl)thio)propan-1-ol (CAS 438237-83-3)
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- 4-Azido-1-methanesulfonate-1-butanol (CAS 320573-75-9)
- 2-(Azetidin-3-yl)-6-methoxypyridine (CAS 1260823-10-6)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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