(E)-2-Methyl-3-(2-methyloxazol-4-yl)acrylaldehyde CAS 139630-91-4
| CAS No. | 139630-91-4 |
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (E)-2-Methyl-3-(2-methyloxazol-4-yl)acrylaldehyde is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(E)-2-Methyl-3-(2-methyloxazol-4-yl)acrylaldehyde (CAS 139630-91-4), molecular formula C8H9NO2 and molecular weight 151.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (E)-2-Methyl-3-(2-methyloxazol-4-yl)acrylaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 151.16 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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-Methoxy-6-methylpyridine-2-carbaldehyde (CAS 139549-07-8)
- 2-Hydroxy-3-methylbenzamide (CAS 14008-60-7)
- 1-(3-Hydroxy-4-methylpyridin-2-yl)ethan-1-one (CAS 1393559-08-4)
- 1-(Pyridin-2-yloxy)propan-2-one (CAS 1401081-24-0)
- 5-(3-Nitrophenyl)isoxazol-3-amine (CAS 1463481-61-9)
- 2-(Benzyloxy)-5-methoxy-3-nitrobenzoic acid (CAS 1221791-72-5)
- 5-hydrazino-2-methylpyridine (CAS 197516-48-6)
- Methyl 1-methyl-4-(4-nitrophenyl)pyrrolidine-3-carboxylate (CAS 1706442-32-1)
- 2-Methyl-2-[(dodecylsulfanylthiocarbonyl)sulfanyl]propanoic acid 461642-78-4 2-(DODECYLSULFANYLTHIOCARBONYLSULFANYL)-2-METHYLPROPIONIC ACID;2-(DODECYLTHIOCARBONOTHIOYLTHIO)-2-METHYLPROPANOIC ACID;2-(DODECYLTHIOCARBONOTHIOYLTHIO)-2-METHYLPROPIONIC ACID;2-METHYL-2-[(DODECYLSULFANYLTHIOCARBONYL) SULFANYL]PROPANOIC ACID;DDMAT;S-DODECYL-S'-(ALPHA,ALPHA'-DIMETHYL-ALPHA''-ACETIC ACID)TRITHIOCARBONATE;2-Methyl-2-[(dodecylsulfanylthiocarbonyl)sulfanyl]propanoic acid SC10807 (CAS 461642-78-4)
- 5-bromo-4-methyl-2,3-dihydro-1,3-benzoxazol-2-one (CAS 1388042-52-1)
- 4-Methoxy-N-(3-(trifluoromethyl)phenyl)benzenesulfonamide (CAS 346691-55-2)
- 3-(4-Methoxyphenoxy)pyrrolidine (CAS 801186-82-3)
- (((1-(Bromomethyl)cyclohexyl)methoxy)methyl)benzene (CAS 1466318-15-9)
- Prolactin-Releasing Peptide (12-31) (human) (CAS 235433-36-0)
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