1H-Indazole-3,7-dicarboxylic acid CAS 1427504-82-2
| CAS No. | 1427504-82-2 |
| Molecular Formula | C9H6N2O4 |
| Molecular Weight | 206.15 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.
1H-Indazole-3,7-dicarboxylic acid (CAS 1427504-82-2) is a high-purity analytical reference standard with the molecular formula C9H6N2O4 and a molecular weight of 206.15 g/mol.
1H-Indazole-3,7-dicarboxylic acid (C9H6N2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H6N2O4 |
| Molecular Weight | 206.15 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related H Standards
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- 1H-Indazole-3,6-dicarboxylic acid (CAS 891782-59-5)
- 1H-indazole-5-carboxylic acid, 3-(Hydroxymethyl)-, methyl ester (CAS 1246250-09-8)
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- 1H-INDAZOLE, 3-BROMO- 3-BROMO-1H-INDAZOLE 3-BROMOINDAZOLE 40598-94-5 BC003616 INDAZOLE, 3-BROMO- (CAS 40598-94-5)
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Recommended Standards
- 5-(Furan-2-carbonyl)furan-2-carboxylic acid (CAS 1399657-85-2)
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- 3-Hydroxy-6-nitroquinolin-2(1H)-one (CAS 1398503-94-0)
- 2-(5-Oxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 1501335-06-3)
- 4-(2-Aminoethyl)-1,3-dihydro-2H-indol-2-one HCl (CAS 91374-26-4)
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- 1-(Trifluoromethyl)cyclopentane-1-carbonitrile (CAS 1260902-25-7)
- 3-(((2,2-Dimethyl-2,3-dihydrobenzofuran-5-yl)methyl)amino)propan-1-ol (CAS 1275949-66-0)
- methyl 6-oxo-5,7-dihydropyrrolo[2,3-d]pyrimidine-4-carboxylate (CAS 1095822-24-4)
- methyl 3-sulfanylbutanoate (CAS 54051-19-3)
- 3-Amino-2-methylbenzenesulfonamide (CAS 1036585-24-6)
- 2-(4-Oxo-2-phenyl-1,4-dihydroquinazolin-3(2H)-yl)acetic acid (CAS 1269529-74-9)
- 3'-Methoxy-[1,1'-biphenyl]-3-sulfonyl chloride (CAS 886502-46-1)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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