2,4,6-Trimethylbenzoic anhydride CAS 5745-51-7
| CAS No. | 5745-51-7 |
| Molecular Formula | C20H22O3 |
| Molecular Weight | 310.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4,6-Trimethylbenzoic anhydride is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,4,6-Trimethylbenzoic anhydride (CAS 5745-51-7) is a high-purity analytical reference standard with the molecular formula C20H22O3 and a molecular weight of 310.39 g/mol.
Based on its molecular formula C20H22O3, 2,4,6-Trimethylbenzoic anhydride contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 310.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 2,4,6-Trimethylbenzoic anhydride 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 | C20H22O3 |
| Molecular Weight | 310.39 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.) | 1958 |
Related Trimethylbenzoic Standards
Recommended Standards
- 2,3-Diphenyl-5-(p-tolyl)furan (CAS 68630-10-4)
- 2,4-Dideoxy-6-O-(phenylmethyl)-L-threo-hexonic Acid tert-Butyl Ester (CAS 215876-09-8)
- 2,3-Bis(2-hydroxyethylthio)-1,4-naphthalenedione (CAS 93718-83-3)
- 2-[(3-Ethyl-3,5,6,7-tetrahydro-4-oxo-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-2-yl)thio]acetic acid (CAS 314041-85-5)
- n-Octyl Acrylate (CAS 2499-59-4)
- Ethyl 5-((tert-butoxycarbonyl)amino)-2-fluoroisonicotinate (CAS 2089319-61-7)
- (Z)-N-(1-(2-Bromophenyl)-1-chloro-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl)benzamide (CAS 1800044-77-2)
- N'-tert-Butyl-N'-phenylbenzohydrazide (CAS 866153-75-5)
- Ethyl 4-(3-(ethoxycarbonyl)thioureido)benzoate (CAS 412912-51-7)
- 6-(4-Methylpiperazin-1-yl)pyridine-3-carbonitrile (CAS 54864-89-0)
- 2-((4-Chlorophenyl)thio)quinolin-8-yl acetate (CAS 141649-51-6)
- 2-(Aminomethyl)-6-bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine (CAS 1805948-62-2)
- (S)-1-(2-((4-Amino-2,6-dichlorophenyl)amino)-2-oxoethyl)-4-(5,5-bis(4-fluorophenyl)pentyl)piperazine-2-carboxamide (CAS 138681-29-5)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com