5-Methoxy-2-methylpyrazolo[1,5-a]pyrimidine CAS 189116-37-8
| CAS No. | 189116-37-8 |
| Molecular Formula | C8H9N3O |
| Molecular Weight | 163.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methoxy-2-methylpyrazolo[1,5-a]pyrimidine (CAS 189116-37-8), a certified reference material (molecular formula C8H9N3O, MW 163.18 g/mol) for analytical method development and quality control.
The molecular framework of 5-Methoxy-2-methylpyrazolo[1,5-a]pyrimidine (C8H9N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 5-Methoxy-2-methylpyrazolo[1,5-a]pyrimidine 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 | C8H9N3O |
| Molecular Weight | 163.18 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.) | 2011 |
| Nitrogen Atoms | 3 |
Related Methoxy Standards
- 6-Methoxy-1H-indazol-4-amine (CAS 1000341-20-7)
- 4-Methoxy-1H-benzo[d]imidazol-6-amine (CAS 101257-94-7)
- 7-Methoxy-1H-pyrrolo[3,2-b]pyridin-3-amine (CAS 1116136-58-3)
- 0623AD 1186311-16-9 6-Methoxy-3-methyl-3H-imidazo[4,5-b]pyridine C8H9N3O (CAS 1186311-16-9)
- 4-Methoxy-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1190311-02-4)
- 5-Methoxy-1H-pyrrolo[3,2-b]pyridin-3-amine (CAS 1190311-26-2)
- 4-Methoxy-1H-pyrrolo[2,3-b]pyridin-6-amine (CAS 1190311-52-4)
- 4-Methoxy-1H-pyrrolo[3,2-c]pyridin-3-amine (CAS 1190314-21-6)
Recommended Standards
- 2-azido-1-phenylethan-1-ol (CAS 18756-01-9)
- 5,6-Dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 191655-97-7)
- 5-Methyl-3-(1-methyl-1H-pyrazol-3-yl)isoxazole (CAS 1824596-58-8)
- (2-Methyl-2H-benzo[d][1,2,3]triazol-4-yl)methanol (CAS 1936320-07-8)
- 5-Amino-6-chloroisoindoline-1,3-dione (CAS 5566-48-3)
- 6-Bromo-2-methyl-2H-indazol-4-ol (CAS 1809838-07-0)
- 1-(5-Fluoro-2-methylphenyl)propan-1-amine (CAS 1249632-15-2)
- Pazopanib USP Related Compound A (CAS 444731-75-3)
- 1-(4-Cyclopropylphenyl)ethan-1-ol (CAS 40641-97-2)
- 3,4,5-Tris(octyloxy)aniline (CAS 151237-03-5)
- 2-Bromo-4-(dimethoxymethyl)pyridine (CAS 383426-41-3)
- [(4-Methanesulfonylphenyl)methyl](methyl)amine (CAS 709649-56-9)
- 7-(Chloromethyl)benzofuran (CAS 158820-53-2)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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