Methyl 4-chloro-1H-indazole-7-carboxylate CAS 952479-72-0
| CAS No. | 952479-72-0 |
| Molecular Formula | C9H7ClN2O2 |
| Molecular Weight | 210.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Methyl 4-chloro-1H-indazole-7-carboxylate (CAS 952479-72-0), a certified reference material (molecular formula C9H7ClN2O2, MW 210.62 g/mol) for analytical method development and quality control.
Methyl 4-chloro-1H-indazole-7-carboxylate (C9H7ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Methyl 4-chloro-1H-indazole-7-carboxylate 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 | C9H7ClN2O2 |
| Molecular Weight | 210.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
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- 5-Chloro-2-oxindole-1-carboxamide (CAS 100599-06-2)
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Recommended Standards
- Methyl 4-chloro-1H-indazole-3-carboxylate (CAS 932041-14-0)
- Methyl 4-chloro-1H-pyrrolo[2,3-β]pyridine-2-carboxylate (CAS 871583-23-2)
- Methyl 4-amino-2-chloro-5-cyanobenzoate (CAS 2383694-19-5)
- Methyl 4-Chloro-5-azaindole-2-carboxylate (CAS 688357-19-9)
- 2,4-Dichloro-6-methylthieno[3,2-d]pyrimidine (CAS 35265-82-8)
- 1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl 2-ethylhexanoate (CAS 1872262-63-9)
- 2-(4-Oxoquinazolin-3(4H)-yl)acetic acid compound with carbonic acid (2:1) (CAS 1609408-01-6)
- Ethyl 2-(5-amino-2-pyridyl)-4-methylthiazole-5-carboxylate (CAS 1858251-31-6)
- (3α,5α,17α)-19-Norpregnane-3,17-diol (CAS 6961-15-5)
- Methyl (2r)-2-amino-3-(2-chloro-4-methylphenyl)propanoate hydrochloride (CAS 2550996-47-7)
- 1,2-Dibenzylbenzene (CAS 792-68-7)
- (2S,4S)-4-(2-benzyl-4-chlorophenoxy)-1-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 1354484-99-3)
- Taltirelin Impurity 2 (CAS 124916-92-3)
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