2H-Chromene-3-carbonyl chloride CAS 41873-72-7
| CAS No. | 41873-72-7 |
| Molecular Formula | C10H7ClO2 |
| Molecular Weight | 194.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 194.61 g/mol gives 2H-Chromene-3-carbonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2H-Chromene-3-carbonyl chloride (CAS 41873-72-7), molecular formula C10H7ClO2 and molecular weight 194.61 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, 2H-Chromene-3-carbonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.61 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.
As a certified reference material (CRM), 2H-Chromene-3-carbonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H7ClO2 |
| Molecular Weight | 194.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
Related H Standards
- 2H-chromene-3-carbothioamide (CAS 423768-57-4)
- 2H-chromene-8-carboxylic acid (CAS 1935147-76-4)
- 2H-Chromene-3-carboxylic acid (CAS 22649-28-1)
- 2H-Chromene-5-carboxylic acid (CAS 843652-50-6)
- 2H-chromene-6-carboxylic acid (CAS 527681-43-2)
- 4H-Chromene-2-carboxylic acid (CAS 67283-74-3)
- 2h-Chromene-3-carboxamide (CAS 10185-00-9)
- 2H-chromene-3-carbaldehyde (CAS 51593-69-2)
Recommended Standards
- 2-Chloronaphthalene-1,4-diol (CAS 73661-09-3)
- 3-(chloromethyl)-2H-chromen-2-one (CAS 98994-33-3)
- 2-Chloro-benzenesulfonyl fluoride (CAS 864872-77-5)
- 3-Chloro-4-(2-propynyloxy)benzaldehyde (CAS 443291-07-4)
- [1-[Amino(tetrahydro-2H-pyran-4-yl)methyl]cyclobutyl]methanol Hydrochloride (CAS 1909306-02-0)
- 2-Bromo-8-methylnaphthalene-1,4-dione (CAS 79516-52-2)
- 1,2-Dichloro-3-iodo-4-nitrobenzene (CAS 1803778-96-2)
- 3-((4-Nitro-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 387345-01-9)
- Ethyl 3-(3-fluorophenyl)propanoate (CAS 7116-37-2)
- Ethyl 5-amino-1-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 1264043-82-4)
- 4-Acetylphenoxyacetic acid (CAS 1878-81-5)
- Ethyl ethylglycinate (CAS 3183-20-8)
- 2-Amino-3-methoxy-2-phenylpropanoic acid (CAS 1247181-80-1)
- Peptide 442 (CAS CATO-CPTD788442)
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