2,2,8,8-Tetramethyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene-6-carbaldehyde CAS 79359-58-3
| CAS No. | 79359-58-3 |
| Molecular Formula | C17H22O3 |
| Molecular Weight | 274.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,2,8,8-Tetramethyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene-6-carbaldehyde 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.
2,2,8,8-Tetramethyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene-6-carbaldehyde (CAS 79359-58-3), molecular formula C17H22O3 and molecular weight 274.35 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 2,2,8,8-Tetramethyl-2,3,4,8,9,10-hexahydropyrano[2,3-f]chromene-6-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 274.35 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).
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.
Physical & Chemical Properties
| Molecular Formula | C17H22O3 |
| Molecular Weight | 274.35 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.) | 1979 |
Related Tetramethyl Standards
- 3,3’,5,5’-TETRAMETHYL-BIPHENYL-2,2’,6,6’-TETRAOL (CAS 1040379-11-0)
- 4,4,5,5-Tetramethyl-2-(4-pentylphenyl)-1,3,2-dioxaborolane (CAS 1359844-02-2)
- 4,4,5,5-Tetramethyl-2-(4-neopentylphenyl)-1,3,2-dioxaborolane (CAS 2648451-28-7)
- 4,4,5,5-Tetramethyl-2-(5-methylbenzo[b]thiophen-2-yl)-1,3,2-dioxaborolane (CAS 1001200-61-8)
- 4,4,5,5-Tetramethyl-2-(3-methylbenzo[b]thiophen-2-yl)-1,3,2-dioxaborolane (CAS 1072811-91-6)
- 4,4,5,5-Tetramethyl-2-(2-methylbenzo[b]thiophen-3-yl)-1,3,2-dioxaborolane (CAS 1174298-60-2)
- 4,4,5,5-Tetramethyl-2-(3-methylbenzo[b]thiophen-5-yl)-1,3,2-dioxaborolane (CAS 1404110-11-7)
- 4-((4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)methyl)tetrahydro-2H-thiopyran 1,1-dioxide (CAS 2246853-73-4)
Recommended Standards
- 2,2'-(Butane-1,4-diyldisulfonyl)bis(ethan-1-ol) (CAS 7426-03-1)
- 2-Fluoro-3-(2-thiomethylphenyl)propiophenone (CAS 898780-19-3)
- 1-(4-Fluorophenyl)-3-(p-tolylthio)propan-1-one (CAS 892154-97-1)
- 2-Fluoro-3-(4-thiomethylphenyl)propiophenone (CAS 898781-51-6)
- 2-(2,4-Dimethoxyphenyl)-6-methoxychroman-4-one (CAS 720675-90-1)
- Triethyl(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)silane (CAS 745783-97-5)
- 2-[4-Methyl-6-(trifluoromethyl)pyrimidin-2-yl]ethan-1-amine hydrochloride (CAS 1196152-75-6)
- 4'-Pentyl-[1,1'-biphenyl]-4-ol (CAS 61760-85-8)
- 2-Methyl-1-(pyridin-4-yl)propan-2-ol (CAS 6760-61-8)
- Ethyl (3-([1,1'-biphenyl]-4-yl)-5-amino-1,2-dihydropyrido[3,4-b]pyrazin-7-yl)carbamate (CAS 82586-04-7)
- 2-Amino-5-[(3,4-dimethoxyphenyl)methyl]-5-phenyl-4,5-dihydro-1H-imidazol-4-one (CAS 512190-92-0)
- Oxytetracycline Hydrochloride (CAS 2058-46-0)
- 1-(3-Chlorobenzyl)piperidin-4-one (CAS 247206-81-1)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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