32703-79-0 4-tert-Butylphthalic anhydride 5-tert-butylisobenzofuran-1,3-dione CAS 32703-79-0
| CAS No. | 32703-79-0 |
| Molecular Formula | C12H18O3 |
| Molecular Weight | 210.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
32703-79-0 4-tert-Butylphthalic anhydride 5-tert-butylisobenzofuran-1,3-dione (CAS 32703-79-0), molecular formula C12H18O3 and molecular weight 210.27 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H18O3, 32703-79-0 4-tert-Butylphthalic anhydride 5-tert-butylisobenzofuran-1,3-dione contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 32703-79-0 4-tert-Butylphthalic anhydride 5-tert-butylisobenzofuran-1,3-dione 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.
Physical & Chemical Properties
| Molecular Formula | C12H18O3 |
| Molecular Weight | 210.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Recommended Standards
- Trimethylhexamethylene Diisocyanate (2,2,4- and 2,4,4- mixture) (CAS 32052-51-0)
- 2-Octenylsuccinic Anhydride (cis- and trans- mixture) (CAS 42482-06-4)
- Trimethylhexamethylene Diisocyanate (2,2,4- and 2,4,4- mixture) (CAS 28679-16-5)
- 4-(3-hydroxy-3-methylbut-1-ynyl)benzoic acid 4-(3-methyl-3-oxidanyl-but-1-ynyl)benzoic acid 63165-02-6 A834248 (CAS 63165-02-6)
- 75081-21-9 9H-Thioxanthen-9-one,(1-methylethyl)- CTK5E1065 (CAS 75081-21-9)
- 3-(Chloromethyl)furan (CAS 14497-29-1)
- 4-Chloro-N-[2-(6-chloro-4-trifluoromethyl-pyridine-2-sulfonyl)-ethyl]-benzamide (CAS 1311280-14-4)
- Bis[60]PCBM (CAS 1048679-01-1)
- 6-Bromo-1,8-naphthyridine-2-carboxylic acid (CAS 1424939-70-7)
- 3-(3-Methylpiperazin-1-yl)pyrazine-2-carbonitrile hydrochloride (CAS 1384428-66-3)
- (4-Cyclohexyl-4H-1,2,4-triazol-3-yl)methanamine dihydrochloride (CAS 1269199-01-0)
- Benzyl 2-(2-methoxyphenyl)pyrrolidine-1-carboxylate (CAS 1355201-88-5)
- 2,4-dichloro-1-(2-isothiocyanatoethyl)benzene (CAS 184003-30-3)
- Peptide Impurity 82 (CAS 10491-78-8)
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