1,2,4,9-Tetramethoxy-8-methylanthracene CAS 834867-35-5
| CAS No. | 834867-35-5 |
| Molecular Formula | C19H20O4 |
| Molecular Weight | 312.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,2,4,9-Tetramethoxy-8-methylanthracene 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.
CATO supplies 1,2,4,9-Tetramethoxy-8-methylanthracene (CAS 834867-35-5), a certified reference material (molecular formula C19H20O4, MW 312.36 g/mol) for analytical method development and quality control.
Structurally, 1,2,4,9-Tetramethoxy-8-methylanthracene (C19H20O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 312.36 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C19H20O4 |
| Molecular Weight | 312.36 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Tetramethoxy Standards
- 1,2,4,9-Tetramethoxy-7-methylanthracene (CAS 834867-34-4)
- 2,3,6,7-Tetramethoxy-9,9-dimethyl-9H-fluorene (CAS 1176891-87-4)
- 1,3,7,9-Tetramethoxy-2,6-dimethyldibenzo[b,d]furan (CAS 24565-66-0)
- 2,2',6,6'-Tetramethoxy-[1,1'-biphenyl]-4,4'-diol (CAS 97049-71-3)
- 3,3',5,5'-Tetramethoxy-[1,1'-biphenyl]-4,4'-diol (CAS 612-69-1)
- 2,2’,5,5’-tetramethoxy-1,1’-biphenyl-4,4’-diamine (CAS 23071-40-1)
- 3,3',5,5'-Tetramethoxy-bibenzyl (CAS 22976-41-6)
- 4,4',5,5'-Tetramethoxy-2,2'-dimethyl-1,1'-biphenyl (CAS 62012-51-5)
Recommended Standards
- 1,3-Bis(2-hydroxy-5-methylphenyl)tetrahydropyrimidin-2(1H)-one (CAS 84379-39-5)
- 1-(4-Methylphenoxy)-4-phenylphthalazine (CAS 76972-44-6)
- 1,3-Di(naphthalen-1-yl)urea (CAS 607-56-7)
- 1-(4-Fluorophenyl)-3-(4-(methylthio)phenyl)-1H-pyrazole-4-carbaldehyde (CAS 618101-60-3)
- N-Acetyl Desethyl Chloroquine-d4 (CAS 1216619-20-3)
- 2-(2-Bromoethyl)-1,4-dimethoxybenzene (CAS 99187-42-5)
- 1-(2,5-Dimethylphenyl)butan-2-ol (CAS 116762-16-4)
- 2-Chloro-6-(pentafluoroethylthio)benzonitrile (CAS 1159512-56-7)
- 1-methyl-1,2,3,4-tetrahydroquinoline-6-carboxylic acid (CAS 162648-46-6)
- 1-(3-Methoxyphenyl)-3-(piperidin-4-yl)urea hydrochloride (CAS 1233952-76-5)
- [(2S)-1-Methylazetidin-2-yl]methanamine bis(trifluoroacetic acid) (CAS 2007919-76-6)
- 2-Iodobenzenesulfonic Acid Dihydrate (CAS 1094026-90-0)
- 7-Ethoxy-4-methylquinoline (CAS 476471-87-1)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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