(E)-(4-Methoxy-4-oxobut-2-en-1-yl)triphenylphosphonium bromide CAS 2181-98-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 2181-98-8 |
| Molecular Formula | C23H22O2P Br |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity (E)-(4-Methoxy-4-oxobut-2-en-1-yl)triphenylphosphonium bromide (CAS 2181-98-8) pharmaceutical standards reference standard. Molecular formula: C23H22O2P Br. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C23H22O2P Br |
| Molecular Weight | 441.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related E Standards
- 1-(2-Methoxy-6-(methylsulfonyl)phenyl)piperazine (CAS 1000018-42-7)
- 6-methoxy-1-methyl-1H-1,3-benzodiazol-7-amine (CAS 1000202-26-5)
- 2-Methoxy-3-(trifluoromethyl)benzaldehyde (CAS 1000339-54-7)
- 1-Methoxy-3-methyl-5-(trifluoromethoxy)benzene (CAS 1000339-56-9)
- 5-Methoxy-7-methyl-1H-indazole-3-carbaldehyde (CAS 1000340-55-5)
- 5-Methoxy-7-methyl-1H-indazole-3-carboxylic acid (CAS 1000340-57-7)
- 5-Methoxy-6-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-90-8)
- 6-Methoxy-4-nitro-1H-indazole (CAS 1000341-08-1)
Recommended Standards
- APO-12 (CAS 871-95-4)
- 7-Methyl-3-{[(pyridin-3-ylmethyl)-amino]-methyl}-1H-quinolin-2-one (CAS 436087-67-1)
- (4-Bromophenyl)(4-(2-methoxyethyl)-1,4-diazepan-1-yl)methanone (CAS 1184489-74-4)
- 2-Azetidinomethyl-4-thiomethylbenzophenone (CAS 898754-65-9)
- (2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)(1-oxa-4-thia-8-azaspiro[4.5]decan-8-yl)methanone (CAS 1351588-44-7)
- 4-{1H-pyrrolo[2,3-b]pyridin-4-yl}-1,2,3,6-tetrahydropyridine (CAS 916172-45-7)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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