5-Bromo-6-methylphthalide CAS 1374574-10-3
| CAS No. | 1374574-10-3 |
| Molecular Formula | C9H7BrO2 |
| Molecular Weight | 227.05 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 5-Bromo-6-methylphthalide.
5-Bromo-6-methylphthalide (CAS 1374574-10-3), molecular formula C9H7BrO2 and molecular weight 227.05 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-6-methylphthalide (C9H7BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-Bromo-6-methylphthalide 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 | C9H7BrO2 |
| Molecular Weight | 227.05 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 7-Bromo-5-methyl-2,3-dihydro-1-benzofuran-3-one (CAS 1153450-24-8)
- 6-Bromo-7-methylisobenzofuran-1(3H)-one (CAS 1179360-30-5)
- 4-Bromo-7-methylisobenzofuran-1(3H)-one (CAS 1179362-74-3)
- 7-Bromo-5-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1199783-02-2)
- 4-Bromo-7-methoxybenzofuran (CAS 1258960-00-7)
- 5-Bromo-2-methyl-2,3-dihydro-1-benzofuran-3-one (CAS 126224-79-1)
- 5-Bromo-7-methylisobenzofuran-1(3H)-one (CAS 1314217-74-7)
- 7-Bromo-4-methylindoline (CAS 1388026-20-7)
Recommended Standards
- (5-Bromobenzofuran-3-yl)methanol (CAS 137242-42-3)
- 5-iodo-1,4-dimethyl-triazole (CAS 1346818-62-9)
- 3-Acetyl-5-bromobenzaldehyde (CAS 1393542-87-4)
- 8-Bromochroman-3-one (CAS 133118-80-6)
- Dembrexine (CAS 83200-09-3)
- 2-Fluoro-5-methoxyphenylhydrazine, HCl (CAS 1198283-29-2)
- 2-(4-Bromophenyl)-5-phenyl-1H-imidazole-4-thiol (CAS 1325303-88-5)
- 4-(3-Fluorophenyl)-5-thioxo-1,2,4-triazolidin-3-one (CAS 263756-91-8)
- 1,3-Diethyl 2-phenyl-2-(prop-2-en-1-yl)propanedioate (CAS 50790-26-6)
- 2-(2,2-dimethylpropyl)pyrrolidine (CAS 383127-35-3)
- (E)-4-(5-Bromothiophen-2-yl)but-3-en-2-one (CAS 62157-61-3)
- (3-(2-Ethoxy-2-oxoethyl)phenyl)boronic acid (CAS 1256345-69-3)
- tert-butyl 3-(3-hydroxypropyl)-4-oxopiperidine-1-carboxylate (CAS 1629784-69-5)
- Anorexigenic Peptide (CAS 69275-10-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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