1-Ethyl-3-methyl-1H-indazole CAS 861803-79-4
| CAS No. | 861803-79-4 |
| Molecular Formula | C10H12N2 |
| Molecular Weight | 160.22 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 1-Ethyl-3-methyl-1H-indazole.
1-Ethyl-3-methyl-1H-indazole (CAS 861803-79-4), molecular formula C10H12N2 and molecular weight 160.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 1-Ethyl-3-methyl-1H-indazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 160.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H12N2 |
| Molecular Weight | 160.22 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-ethyl-1H-indol-6-amine (CAS 681836-77-1)
- 1-ethyl-6-methyl-1H-1,3-benzodiazole (CAS 26530-88-1)
- 1-ethyl-1H-indol-5-amine (CAS 220844-49-5)
- 1H-Imidazole, 4,5-dihydro-5-methyl-2-phenyl- (CAS 939-06-0)
- 5-Nitro-2,3-dihydro-1H-inden-2-ol (CAS 16513-67-0)
- 1,3,5-Trimethyl-1H-pyrazole-4-carbohydrazide (CAS 477711-16-3)
- 1-(3-Fluorobenzyl)-5-(3-methoxyphenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1338667-60-9)
- 2-(Aminomethyl)-4-chloro-3-(difluoromethyl)pyridine-5-acetonitrile (CAS 1806057-89-5)
- 1-[(2-Hydroxyethyl)amino]-9,10-dihydroanthracene-9,10-dione (CAS 4465-58-1)
- 5-(1H-Imidazol-4-yl)pyrimidin-4(1H)-one (CAS 840529-43-3)
- 4-Chloro-2-(difluoromethyl)-5-iodonicotinonitrile (CAS 1806926-40-8)
- 1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-(trifluoromethyl)pyrimidine-2,4(1H,3H)-dione mixt. with 5-chloro-6-((2-iminopyrrolidin-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione (1:1) hydrochloride (CAS 733030-01-8)
- N-Lignoceroyl Taurine (CAS 807370-75-8)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
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