7-Methoxy-1H-indazole-3-carboxylic Acid CAS 133841-08-4
| CAS No. | 133841-08-4 |
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Methoxy-1H-indazole-3-carboxylic Acid 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.
CATO supplies 7-Methoxy-1H-indazole-3-carboxylic Acid (CAS 133841-08-4), a certified reference material (molecular formula C9H8N2O3, MW 192.17 g/mol) for analytical method development and quality control.
Structurally, 7-Methoxy-1H-indazole-3-carboxylic Acid (C9H8N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 192.17 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 4-Methoxy-1H-pyrrolo[3,2-c]pyridine-3-carboxylic acid (CAS 1000341-34-3)
- 2-(3-Methoxy-4-nitrophenyl)acetonitrile (CAS 104103-16-4)
- 2-(4-Methoxy-2-nitrophenyl)acetonitrile (CAS 105003-90-5)
- 5-Methoxy-7-nitro-1H-indole (CAS 10553-10-3)
- 5-Methoxy-2-methyl-3-nitrobenzonitrile (CAS 1082040-58-1)
- 6-Methoxy-1H-indazole-5-carboxylic Acid (CAS 1082041-60-8)
- 2-(3-methoxy-2-nitrophenyl)acetonitrile (CAS 111795-89-2)
- 4-Methoxy-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1190311-20-6)
Recommended Standards
- Methyl 3-oxo-2,3-dihydrobenzofuran-7-carboxylate (CAS 1337851-11-2)
- 7-Hydroxy-1-methyl-1H-indazole-3-carboxylic Acid (CAS 133841-11-9)
- Ethyl [1,2,4]triazolo[4,3-a]pyrimidine-3-carboxylate (CAS 1335055-70-3)
- 5-Acrylamidonicotinic acid (CAS 1342846-40-5)
- (S)-Hexahydropyrrolo[1,2-a]pyrazin-4(1H)-one hydrochloride (CAS 1303975-09-8)
- rac-[(1R,2S)-2-cyclopropylcyclopropyl]methanamine hydrochloride (CAS 1820571-47-8)
- Trilaurin (CAS 538-24-9)
- 3-(4-(Methylsulfonyl)piperazin-1-yl)indolizine-6-carboxylic acid (CAS 1422139-90-9)
- (S)-2-(Cyclohex-3-en-1-yl)acetic acid (CAS 67976-84-5)
- 3-((tert-Butoxycarbonyl)amino)thieno[2,3-b]pyridine-2-carboxylic acid (CAS 2115066-46-9)
- (3R,6R)-6-Methylpiperidin-3-ol (CAS 285995-17-7)
- 3-Amino-2-methyl-5-nitrobenzoic acid (CAS 89977-11-7)
- (E)-3-Methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one (CAS 15789-90-9)
- C-telopeptide (CAS 162929-64-8)
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