4-Chloro-6-methyl-2H-pyran-2-one CAS 17422-72-9
| CAS No. | 17422-72-9 |
| Molecular Formula | C6H5ClO2 |
| Molecular Weight | 144.56 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 4-Chloro-6-methyl-2H-pyran-2-one.
4-Chloro-6-methyl-2H-pyran-2-one (CAS 17422-72-9), molecular formula C6H5ClO2 and molecular weight 144.56 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 4-Chloro-6-methyl-2H-pyran-2-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.56 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 4-Chloro-6-methyl-2H-pyran-2-one 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 | C6H5ClO2 |
| Molecular Weight | 144.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 6-Chloro-5-methylpyrimidin-2(1H)-one (CAS 101080-24-4)
- 4-Chloro-2-methylpyrimidin-5-ol (CAS 103660-23-7)
- 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one (CAS 104566-45-2)
- 2-Chloro-5-(hydroxymethyl)pyrimidine (CAS 1046816-75-4)
- 4-Chloro-5-methyl-1H-pyrazole-3-carbaldehyde (CAS 1050642-24-4)
- 5-Chloro-3-methylpyrazin-2(1H)-one (CAS 105985-18-0)
- 5-Chloro-4-methylpyrimidine 1-oxide (CAS 114969-55-0)
- 5-Chloro-4-methoxypyrimidine (CAS 114969-94-7)
Recommended Standards
- 6-Chloro-5-methylpyridazin-3(2H)-one (CAS 1703-07-7)
- 4-Chloro-1-methyl-1H-pyrazole-3-carbaldehyde (CAS 175204-81-6)
- 3-chloro-4-methoxy-pyridazine (CAS 1677-81-2)
- 1-(4-Chloro-1H-imidazol-2-yl)ethanone (CAS 1783437-13-7)
- rel-(R,S)-2,2'-Bipyrrolidine sesquioxalate salt (CAS 1580593-10-7)
- 1-(Benzo[d]thiazol-2-yl)-5-isopropyl-1H-pyrazole-3-carboxylic acid (CAS 1177216-23-7)
- 2-(aminomethyl)-4-methylpentanoic acid hydrochloride (CAS 685898-39-9)
- (E)-3-(4-Bromophenyl)-1-(furan-2-yl)prop-2-en-1-one (CAS 111042-58-1)
- methyl 5-cyano-1-methyl-1H-pyrrole-2-carboxylate (CAS 1041644-52-3)
- 2-(3-Hydroxyphenyl)-n-methylacetamide (CAS 220299-54-7)
- 5-(Benzo[d][1,3]dioxol-5-yl)-3-methylpent-1-yn-3-ol (CAS 309283-92-9)
- 3-((4-Chlorophenoxy)methyl)azetidine (CAS 954224-17-0)
- tert-Butyl 3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)azetane-1-carboxylate (CAS 461699-22-9)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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