2-chloro-4H-pyrido[1,2-a]pyrimidin-4-one CAS 5418-94-0
| CAS No. | 5418-94-0 |
| Molecular Formula | C8H13ClN2O |
| Molecular Weight | 188.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-chloro-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 5418-94-0), a certified reference material (molecular formula C8H13ClN2O, MW 188.65 g/mol) for analytical method development and quality control.
Structurally, 2-chloro-4H-pyrido[1,2-a]pyrimidin-4-one (C8H13ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 188.65 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C8H13ClN2O |
| Molecular Weight | 188.65 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- 3-(4-Chloro-3,5-dimethyl-1h-pyrazol-1-yl)propan-1-ol (CAS 1006348-49-7)
- 8-chloro-2H-phthalazin-1-one (CAS 101494-94-4)
- 5-Chloro-1H-pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1015610-39-5)
- 5-chloro-1H-indazole-3-carbaldehyde (CAS 102735-84-2)
- 3-Chloro-1<I>H</I>-indazole-5-carbaldehyde (CAS 1086391-03-8)
- 2-Chloro-n-(2-cyano-2-methylethyl)-n-ethylacetamide (CAS 1184272-17-0)
- 6-chloro-1H-indazole-4-carbaldehyde (CAS 1373223-78-9)
- 8-chloro-2H-2,7-naphthyridin-1-one (CAS 1393563-40-0)
Recommended Standards
- 2-chloro-1-(8-oxabicyclo[3.2.1]octan-3-yl)ethanone (CAS 2573048-57-2)
- 2-Chloro-6-vinylnaphthalene (CAS 96221-54-4)
- 2-Chloro-1-(6-oxaspiro[3.4]octan-2-yl)ethanone (CAS 2301669-03-2)
- 2-chloro-7,8-dihydro-1,7-naphthyridin-8-one (CAS 930303-55-2)
- 1-Bromo-3-(ethoxymethyl)benzene (CAS 95068-01-2)
- 2-Methyl-2-(piperazin-1-yl)propan-1-amine (CAS 891642-91-4)
- 2-(Difluoromethyl)-6-fluorobenzaldehyde (CAS 1785431-84-6)
- Prucalopride Impurity 13 (CAS 137211-64-4)
- 2-Amino-n-(4-chloro-2-methoxy-5-methylphenyl)benzamide (CAS 565180-50-9)
- 4-((4-Chloro-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 386736-92-1)
- 3-Bromo-5-fluoro-2-methoxy-4-methylaniline (CAS 2187434-04-2)
- 5-Butyl-1-(2,3-dimethylphenyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 895020-86-7)
- (R)-5-Allyl-2-oxabicyclo[3.3.0]oct-8-ene (CAS 911200-98-1)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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