8-Methoxy-2H-chromene CAS 16336-25-7
| CAS No. | 16336-25-7 |
| Molecular Formula | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Methoxy-2H-chromene is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
8-Methoxy-2H-chromene (CAS 16336-25-7) is a high-purity analytical reference standard with the molecular formula C10H10O2 and a molecular weight of 162.19 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 8-Methoxy-2H-chromene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Methoxy Standards
- 5-Methoxy-6-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-90-8)
- 5-Methoxy-6-methyl-1H-indazole (CAS 1000343-61-2)
- 5-Methoxy-2-vinylbenzaldehyde (CAS 101466-49-3)
- 5-Methoxy-1-methylbenzimidazole (CAS 10394-39-5)
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- 4-Methoxy-3,5-dimethylpicolinonitrile (CAS 104916-41-8)
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- 4-Methoxy-7-methyl-1H-indazole (CAS 1082041-64-2)
Recommended Standards
- N,2-dimethylbenzo[d]oxazol-6-amine (CAS 1628416-47-6)
- (2-Methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)methanol (CAS 1638760-24-3)
- N-(3-Aminophenyl)acrylamide (CAS 16230-24-3)
- (2-Methyl-1H-pyrrolo[2,3-b]pyridin-5-yl)methanol (CAS 1638760-53-8)
- 6-Bromo-2-fluoronicotinaldehyde (CAS 1227588-87-5)
- (4-Methyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazol-3-yl)methanamine (CAS 2791273-96-4)
- 4-Bromo-2,2-dimethyltetrahydrofuran (CAS 1193-08-4)
- (E)-1,3-Difluoro-5-methoxy-2-(2-nitrovinyl)benzene (CAS 1784746-69-5)
- (R)-Methyl 4-((3R,5R,8S,10S,13R,14S,17R)-3-acetoxy-10,13-dimethyl-12-oxo-2,3,4,5,6,7,8,10,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate (CAS 4472-02-0)
- Spiro[2.2]pentan-1-ylmethanamine (CAS 1506601-94-0)
- 2-(2,5,7-TRimethyl-1h-indol-3-yl)ethanamine oxalate (CAS 1177283-46-3)
- 4-(1-Phenethyl-3-phenyl-propyl)-pyridine (CAS 2057-47-8)
- (7S)-1,4-Dioxa-8-azaspiro[4.5]decan-7-ylmethanamine (CAS 1352343-55-5)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
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