2,6-Bis-(3,4-Dimethoxyphenylmethylene)-Cyclohexanone CAS 18977-33-8
| CAS No. | 18977-33-8 |
| Molecular Formula | C24H26O5 |
| Molecular Weight | 394.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,6-Bis-(3,4-Dimethoxyphenylmethylene)-Cyclohexanone (CAS 18977-33-8), a certified reference material (molecular formula C24H26O5, MW 394.46 g/mol) for analytical method development and quality control.
Structurally, 2,6-Bis-(3,4-Dimethoxyphenylmethylene)-Cyclohexanone (C24H26O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 394.46 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 2,6-Bis-(3,4-Dimethoxyphenylmethylene)-Cyclohexanone 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 | C24H26O5 |
| Molecular Weight | 394.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Recommended Standards
- 1897-26-3 2,5-bis(trifluoromethyl)-1,3,4-oxadiazole (CAS 1897-26-3)
- Allyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-5-aminopentanoate (CAS 196927-83-0)
- 2-(tert-butoxycarbonylamino)-3-[3-[(tert-butoxycarbonylamino)methyl]phenyl]propanoic acid (CAS 1822495-40-8)
- (2-(4-(Bis(4-fluorophenyl)methyl)piperazin-1-yl)phenyl)methanol (CAS 914349-61-4)
- 5-(Azepane-1-sulfonyl)-2-chloroaniline (CAS 326916-71-6)
- 3-Isocyanatopropyldimethylchlorosilane (CAS 17070-70-1)
- (2S,5R,6R)-6-((R)-2-((Furan-2-carbonyl)oxy)-4-methylpentanamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (CAS 54340-65-7)
- N-methylquinoxaline-6-carboxamide (CAS 1343299-66-0)
- Benzenesulfonic Impurity 3 (CAS 1352414-81-3)
- 2-(2-(Phenylamino)thiazol-4-yl)benzoic acid (CAS 303150-09-6)
- 2-(Dimethylamino)-6-fluorobenzaldehyde (CAS 1289194-73-5)
- Cyclopentadiene-1,2,3,4,5-pentacarboxylic acid pentylmethyl ester (CAS 16691-59-1)
- Cyclohexanecarbothioamide (CAS 7390-42-3)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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