7-Methylchroman-2-one CAS 20921-01-1
| CAS No. | 20921-01-1 |
| Molecular Formula | C21H30O3 |
| Molecular Weight | 330.46 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 7-Methylchroman-2-one.
CATO supplies 7-Methylchroman-2-one (CAS 20921-01-1), a certified reference material (molecular formula C21H30O3, MW 330.46 g/mol) for analytical method development and quality control.
7-Methylchroman-2-one (C21H30O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Methylchroman-2-one 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 | C21H30O3 |
| Molecular Weight | 330.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Methylchroman Standards
- 2-Ethyl-2-methylchroman-4-amine (CAS 1421601-78-6)
- 2-Ethyl-2-methylchroman-4-one (CAS 73509-12-3)
- (7-Methylchroman-3-yl)methanol (CAS 1823924-39-5)
- (4-Methylchroman-4-yl)methanamine (CAS 1485459-52-6)
- (S)-6-methylchroman-4-amine (CAS 1018978-88-5)
- (R)-8-methylchroman-4-amine (CAS 1213065-29-2)
- (R)-5-methylchroman-4-amine (CAS 1213506-92-3)
- (S)-8-methylchroman-4-amine (CAS 1213596-97-4)
Recommended Standards
- 7-Hydroxycannabidiol (CAS 50725-17-2)
- 8β-Hydroxy-∆9-tetrahydro Cannabinol (CAS 34984-78-6)
- 3-Phenyl-decahydro-1,4-diaza-cyclopenta-cyclooctene-4-carboxylic acid tert-butyl ester (CAS 2098497-07-3)
- Abiraterone Impurity N6 (CAS 853-23-6)
- (S)-2-Amino-N-ethyl-3-methyl-N-(((S)-1-methylpyrrolidin-2-yl)methyl)butanamide (CAS 1401666-76-9)
- 2-(2-ethylimidazol-1-yl)acetic acid;hydrochloride (CAS 1170001-67-8)
- 4-((1,3,3-Trimethyl-6-azabicyclo-[3.2.1]octan-6-yl)sulfonyl)benzoic acid (CAS 325830-48-6)
- Ethyl 2-(3-isopropyl-5-methyl-1H-pyrazol-1-yl)acetate (CAS 1402446-15-4)
- Chloroparaffin (CAS 108171-26-2)
- 5-Ethoxy-1H-pyrazole-3-carboxylic acid (CAS 89831-43-6)
- 3,4-Dihydro-1H-spiro[naphthalene-2,4’-oxazolidine]-2’,5’-dione (CAS 117099-27-1)
- (1S,4S)-2-Ethyl-2,5-diaza-bicyclo[2.2.1]heptane (CAS 1127236-01-4)
- Sibiricose A3 (CAS 139726-39-9)
- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
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