2-Bromo-3-chloronaphthalene-1,4-dione CAS 88645-45-8
| CAS No. | 88645-45-8 |
| Molecular Formula | C10H4BrClO2 |
| Molecular Weight | 271.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Bromo-3-chloronaphthalene-1,4-dione 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.
CATO supplies 2-Bromo-3-chloronaphthalene-1,4-dione (CAS 88645-45-8), a certified reference material (molecular formula C10H4BrClO2, MW 271.49 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 2-Bromo-3-chloronaphthalene-1,4-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.49 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).
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 | C10H4BrClO2 |
| Molecular Weight | 271.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 4-bromo-2-(chloromethyl)-1-(difluoromethoxy)benzene (CAS 1039329-39-9)
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Recommended Standards
- 2-(Bromomethyl)-4-chloro-1-(difluoromethoxy)benzene (CAS 639826-18-9)
- 4-(Bromomethyl)-2-chloro-1-(difluoromethoxy)benzene (CAS 58215-11-5)
- 1-Bromo-3-chloro-5-(difluoromethyl)-2-methoxybenzene (CAS 2091157-62-7)
- Ethanone, 2,2,2-trichloro-1-(1-methyl-5-nitro-1h-pyrrol-2-yl)- (CAS 53391-42-7)
- Methyl (Z)-3-chloroacrylate (CAS 3510-44-9)
- 6-Bromo-5-(difluoromethyl)-4-hydroxypyridine-3-sulfonamide (CAS 1807004-23-4)
- 2-Methyl-4-isobutyrylphloroglucinol (CAS 69480-03-1)
- 2-(4-Benzyl-1-piperazinyl)nicotinic acid (CAS 247117-48-2)
- Methyl 2-phenyloxazole-4-carboxylate (CAS 59171-72-1)
- (5-Fluoro-1h-indol-3-yl)methanamine (CAS 113188-82-2)
- Aprepitant Impurity 72 (CAS 502537-07-7)
- 6-Chloro-5-iodonicotinic Acid (CAS 59782-87-5)
- (6,7-Dihydro-5H-cyclopenta[b]pyrazin-6-yl)methanol (CAS 607345-38-0)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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