(E)-3-Bromobut-2-enal CAS 33603-83-7
| CAS No. | 33603-83-7 |
| Molecular Formula | C4H5BrO |
| Molecular Weight | 148.99 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 (E)-3-Bromobut-2-enal.
CATO supplies (E)-3-Bromobut-2-enal (CAS 33603-83-7), a certified reference material (molecular formula C4H5BrO, MW 148.99 g/mol) for analytical method development and quality control.
(E)-3-Bromobut-2-enal (C4H5BrO) contains a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (E)-3-Bromobut-2-enal 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.
Physical & Chemical Properties
| Molecular Formula | C4H5BrO |
| Molecular Weight | 148.99 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
Related E Standards
- 4-Bromobut-2-yn-1-ol (CAS 13280-08-5)
- (Z)-2-Bromobut-2-enal (CAS 33718-99-9)
- 2-bromobut-2-enal (CAS 24247-53-8)
- 4-bromobut-3-yn-1-ol (CAS 4544-38-1)
- 3-Bromobut-3-en-1-amine (CAS 328058-75-9)
- 4-bromobut-3-en-1-ol (CAS 306749-29-1)
- (2E)-4-Bromobut-2-enenitrile, E (CAS 37590-23-1)
- (E)-2-Bromobut-2-enenitrile (CAS 24325-95-9)
Recommended Standards
- 4-bromo-2,3-dihydrofuran (CAS 1430811-55-4)
- 2-Bromo-4,5-dihydro-1H-imidazole (CAS 59816-54-5)
- 2-bromocyclobutan-1-one (CAS 1192-01-4)
- 4,6-Dichloropyrimidine (CAS 1193-21-1)
- (S)-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methanol (CAS 98572-00-0)
- N-(1,1,1,2,3,3,3-heptadeuteriopropan-2-yl)-3-(2-methoxy-5-methylphenyl)-3-phenylpropanamide (CAS 1794759-98-0)
- CAS 33221-76-0 (CAS 33221-76-0)
- 2-(Dimethylphosphoryl)benzonitrile (CAS 1333230-30-0)
- Methyl 6-fluoropyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1802489-63-9)
- 2-(3-Butoxyphenyl)-4-methylpyrrolidine (CAS 603089-76-5)
- Ethyl 3-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1612861-50-3)
- 2-Chloro-5-((4-methoxyphenoxy)methyl)thiazole (CAS 339018-20-1)
- 6-Isopropyl-6,7-dihydropyrazolo[1,5-a]pyrimidine (CAS 170886-54-1)
- (Pro3)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 299898-52-5)
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