2-(4-Methoxyphenyl)acetic anhydride CAS 3951-10-8
| CAS No. | 3951-10-8 |
| Molecular Formula | C18H18O5 |
| Molecular Weight | 314.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(4-Methoxyphenyl)acetic anhydride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-(4-Methoxyphenyl)acetic anhydride (CAS 3951-10-8), molecular formula C18H18O5 and molecular weight 314.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H18O5, 2-(4-Methoxyphenyl)acetic anhydride contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 314.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C18H18O5 |
| Molecular Weight | 314.33 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methoxyphenyl Standards
- 2-((4-Methoxyphenyl)sulfonamido)thiazole-4-carboxylic acid (CAS 1105192-75-3)
- 1-(3-Methoxyphenyl)-4-(5-nitropyridin-2-yl)piperazine (CAS 158399-79-2)
- 1-(2-Methoxyphenyl)-4-(5-nitropyridin-2-yl)piperazine (CAS 158399-80-5)
- 4-(4-Methoxyphenyl)-4-oxo-2-{[(pyridin-3-yl)methyl]amino}butanoic acid (CAS 329929-07-9)
- Methyl 6-((4-methoxyphenyl)amino)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylate (CAS 612065-19-7)
- 7-(4-Methoxyphenyl)-7,8-dihydro-8-oxo-1,2,4-triazolo[4,3-α]pyrazine-3-propanoic Acid (CAS 912791-23-2)
- 3-(2-Methoxyphenyl)-4-(((5-methylfuran-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-79-0)
- 3-(3-Methoxyphenyl)-4-(((5-methylfuran-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 613248-90-1)
Recommended Standards
- 2-(3,4-Diethoxybenzoyl)benzoic acid (CAS 234780-28-0)
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- 2-(3-(Tert-butyl)-5-methyl-7-oxo-7h-furo[3,2-g]chromen-6-yl)acetic acid (CAS 664366-05-6)
- 2-Benzyl-1-hydroxyanthracene-9,10-dione (CAS 54454-84-1)
- Methyl 2-(benzo[d][1,3]dioxol-5-yl)-2,3-dihydrothiazole-4-carboxylate (CAS 1207175-02-7)
- (2R)-2-Phenyl-2H-chromene-3-carboxaldehyde (CAS 911107-22-7)
- 2-(piperidin-4-ylmethyl)-1$l^{6},2-thiazolidine-1,1-dione hydrochloride (CAS 1909319-77-2)
- 1,5-Dibromo-2-fluoro-4-nitrobenzene (CAS 1803785-06-9)
- Upadacitinib Impurity 10 (CAS 2768445-17-4)
- Dihydroartemisinin Tetrafurano Acetate (CAS 198817-95-7)
- (5-(3-Methoxyphenyl)isoxazol-3-yl)methanamine hydrochloride (CAS 1263094-48-9)
- (S)-1,3,7-Triazaspiro[4.4]nonane-2,4-dione (CAS 732974-41-3)
- 2-Benzoylquinoline (CAS 16576-25-3)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
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