3-Methylquinoxalin-5-amine CAS 19031-43-7
| CAS No. | 19031-43-7 |
| Molecular Formula | C9H9N3 |
| Molecular Weight | 159.19 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 3-Methylquinoxalin-5-amine.
3-Methylquinoxalin-5-amine (CAS 19031-43-7) is a high-purity analytical reference standard with the molecular formula C9H9N3 and a molecular weight of 159.19 g/mol.
The molecular framework of 3-Methylquinoxalin-5-amine (C9H9N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Methylquinoxalin-5-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9N3 |
| Molecular Weight | 159.19 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 3 |
Related Methylquinoxalin Standards
- N-Methylquinoxalin-6-amine (CAS 1338986-47-2)
- 5-Methylquinoxalin-6-amine (CAS 171102-36-6)
- 2-Methylquinoxalin-5-amine (CAS 19031-42-6)
- 2-Methylquinoxalin-6-amine (CAS 4188-17-4)
- 5-Methylquinoxalin-2-amine (CAS 718615-10-2)
- 6-Methylquinoxalin-2-amine (CAS 857758-58-8)
- 7-Methylquinoxalin-2-amine (CAS 646504-83-8)
- 7-Methylquinoxalin-5-amine (CAS 860502-18-7)
Recommended Standards
- (1,5-Naphthyridin-4-yl)methanamine (CAS 1935541-15-3)
- ethyl 3-amino-1H-pyrazole-5-carboxylate (CAS 1886994-04-2)
- 5-Methylquinazolin-2-amine (CAS 1936200-67-7)
- 3-(1-Pyrazolyl)aniline (CAS 184097-88-9)
- tert-Butyl 3-methyl-2-oxoindoline-1-carboxylate (CAS 214610-11-4)
- Methyl 4-(3-chloro-4-methylphenyl)benzoate (CAS 1820735-44-1)
- 4506-66-5 AR-1K6480 n-butyl-n'-{2-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)carbamoyl]phenyl}ethanediamide (CAS 4506-66-5)
- (Acetylamino)[(3-methoxy-5-methyl-4-isoxazolyl)methyl]propanedioic Acid Diethyl Ester (CAS 75989-23-0)
- Methyl 3,6-dicyclopropyl-1-(2-fluorophenyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1018127-37-1)
- 5-Amino-1-(4-bromophenyl)-N-(furan-2-ylmethyl)-1H-1,2,3-triazole-4-carboxamide (CAS 929970-89-8)
- 2-Hydroxymethyl-2,3-dihydrobenzofuran (CAS 66158-96-1)
- 1-Cyano-N-(4-Fluorophenyl)Methanethioamide (CAS 79174-47-3)
- N,N-Dibutyl-N-(2-Oxo-2-Phenylethyl)-1-Butanaminium Tetrafluoroborate (CAS 214074-74-5)
- Peptide-GMF (CAS CATO-CPTD788469)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com