4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde CAS 904744-54-3
| CAS No. | 904744-54-3 |
| Molecular Formula | C6H7BrO2 |
| Molecular Weight | 191.02 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 4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde.
4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde (CAS 904744-54-3), molecular formula C6H7BrO2 and molecular weight 191.02 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde (C6H7BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
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 4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde 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 | C6H7BrO2 |
| Molecular Weight | 191.02 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
- 3-bromocyclohexane-1,2-dione (CAS 24829-91-2)
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- Ethyl 4-bromobut-2-ynoate (CAS 39595-70-5)
- Phenyl(3-oxaspiro[bicyclo[3.3.1]nonane-9,2’-[1,3]dioxolan]-7-yl)methanone (CAS 1952348-86-5)
- 3-(4-(2-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-2-(4-methoxyphenyl)ethyl)phenyl)isoxazole-5-carboxylic acid (CAS 1373156-28-5)
- 4-bromo-2-cyclopropyl-1H-pyrrolo[2,3-b]pyridine (CAS 1014614-11-9)
- Mono[2-(perfluorooctyl)ethyl] Glucuronide (CAS 864551-34-8)
- (6-Chloro-4-(trifluoromethyl)pyridin-2-yl)methanamine (CAS 862120-77-2)
- 3,5-dimethoxyphenyl 2,4,6-trimethoxybenzoate (CAS CATO-C3D-25796)
- Ethyl (1-amino-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonyl)carbamate (CAS 400077-88-5)
- 1-(1-Propyl-1H-imidazol-5-yl)ethanone (CAS 600638-89-9)
- 4-(2-(Pyridin-2-yl)acetyl)benzoic acid (CAS 915920-55-7)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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