3-(Bromomethyl)-7-methoxy-2H-chromen-2-one CAS 133932-20-4
| CAS No. | 133932-20-4 |
| Molecular Formula | C11H9BrO3 |
| Molecular Weight | 269.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 3-(Bromomethyl)-7-methoxy-2H-chromen-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3-(Bromomethyl)-7-methoxy-2H-chromen-2-one (CAS 133932-20-4), a certified reference material (molecular formula C11H9BrO3, MW 269.09 g/mol) for analytical method development and quality control.
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-(Bromomethyl)-7-methoxy-2H-chromen-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 | C11H9BrO3 |
| Molecular Weight | 269.09 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1995 |
| Halogen Content | Br-containing |
Related Bromomethyl Standards
- 5-(Bromomethyl)-7-methoxy-2H-chromen-2-one (CAS 54745-57-2)
- Methyl 2-(bromomethyl)-1H-benzo[d]imidazole-1-carboxylate (CAS 307951-31-1)
- Methyl 3-(bromomethyl)-1-benzofuran-2-carboxylate (CAS 58763-73-8)
- methyl 5-(bromomethyl)-1-benzofuran-2-carboxylate (CAS 82788-35-0)
- 2-(Bromomethyl)-1-methoxy-3-(trifluoromethyl)benzene (CAS 1017779-04-2)
- 1-(Bromomethyl)-3-(2,2,2-trifluoroethoxy)benzene (CAS 1094438-85-3)
- 1-(bromomethyl)-2-(2,2,2-trifluoroethoxy)benzene (CAS 1152553-26-8)
- 1-(Bromomethyl)-4-methyl-2-(trifluoromethoxy)benzene (CAS 1261456-03-4)
Recommended Standards
- 1-(4-Bromophenyl)-3-oxocyclobutane-1-carboxylic acid (CAS 1339252-05-9)
- 1-(2-Bromophenyl)-3-oxocyclobutane-1-carboxylic acid (CAS 1339830-72-6)
- 5-(4-Bromophenoxy)-3-methylfuran-2(5H)-one (CAS 1332863-94-1)
- 1-(3-Bromophenyl)-3-oxocyclobutane-1-carboxylic acid (CAS 1342653-06-8)
- 3-Amino-1-(3-chloro-4-fluorophenyl)pyrrolidin-2-one (CAS 192318-48-2)
- 2-(Cyclopropylmethoxy)-3,3,3-trifluoropropan-1-amine (CAS 1157932-10-9)
- N-((E)-(2-Chloro-3-((E)-(phenylimino)methyl)cyclohex-2-en-1-ylidene)methyl)aniline hydrochloride (CAS 195382-10-6)
- 334-68-9 Dodecane, 1-fluoro- 1-Fluorododecane 4-01-00-00500 (Beilstein Handbook Reference) BRN 1738884 Dodecyl fluoride n-Dodecyl fluoride EINECS 206-381-1 (CAS 334-68-9)
- cis-4-Fluoro-L-proline Methyl Ester Hydrochloride (CAS 58281-79-1)
- 4-(2-Fluoro-5-(trifluoromethyl)phenyl)thiazol-2-amine (CAS 199602-12-5)
- 4-(Thiazol-2-yldiazenyl)benzene-1,3-diol (CAS 2246-46-0)
- 3,5-Diamino-6-bromo-pyrazine-2-carboxylic acid (CAS 1303968-25-3)
- 6-(Octahydroquinolin-1(2H)-yl)nicotinonitrile (CAS 827322-99-6)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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