4-Bromo-5-methyl-1,2-dihydropyridazine-3,6-dione CAS 732295-61-3
| CAS No. | 732295-61-3 |
| Molecular Formula | C5H5BrN2O2 |
| Molecular Weight | 205.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4-Bromo-5-methyl-1,2-dihydropyridazine-3,6-dione (CAS 732295-61-3), a certified reference material (molecular formula C5H5BrN2O2, MW 205.01 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 4-Bromo-5-methyl-1,2-dihydropyridazine-3,6-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 205.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H5BrN2O2 |
| Molecular Weight | 205.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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 DMSO, DMF, methanol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
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Recommended Standards
- 4-Bromo-5-hydroxy-2-methyl-2H-pyridazin-3-one (CAS 64178-59-2)
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- 5-(Bromomethyl)pyrimidine-2,4(1H,3H)-dione (CAS 4874-37-7)
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- [(8S)-6-(difluoromethylene)-2,3,5,7-tetrahydro-1H-pyrrolizin-8-yl]methanol (CAS 2820537-07-1)
- (R)-Cyclopropyl(naphthalen-1-yl)methanamine (CAS 1212952-18-5)
- 4-Amino-3,5-diethoxybenzaldehyde (CAS 909854-06-4)
- Sodium Pivalate (CAS 1184-88-9)
- Ethyl 2-[3-(tert-butyl)-1-cyclohexyl-1H-1,2,4-triazol-5-yl]acetate (CAS 1353506-97-4)
- 1-Acetyloctahydrocyclopenta[b]pyrrole-2-carbonitrile (CAS 88585-95-9)
- (2,5-Dimethylphenyl)(3-(morpholinomethyl)phenyl)methanone (CAS 898765-59-8)
- 8-Methyl-4-(2-methylbenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-35-8)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
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