Di-tert-butyl phthalate CAS 30448-43-2
| CAS No. | 30448-43-2 |
| Molecular Formula | C16H22O4 |
| Molecular Weight | 278.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Di-tert-butyl phthalate (CAS 30448-43-2), molecular formula C16H22O4 and molecular weight 278.34 g/mol, is a CATO reference standard with documented purity and traceability.
Di-tert-butyl phthalate (C16H22O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures Di-tert-butyl phthalate 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 | C16H22O4 |
| Molecular Weight | 278.34 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Recommended Standards
- Di-tert-butyl isophthalate (CAS 33813-32-0)
- Di-tert-butyl terephthalate (CAS 28313-42-0)
- Di-sec-butyl Phthalate (CAS 4489-61-6)
- Ethyl 2-(3-methoxybenzyl)-3-oxohexanoate (CAS 885279-96-9)
- Allylchloro[1,3-bis(2,6-di-i-propylphenyl)imidazol-2-ylidene]palladium(II) 478980-03-9 (NHC)PD(ALLYL)CL;ALLYLCHLORO[1,3-BIS(2,6-DI-I-PROPYLPHENYL)IMIDAZOL-2-YLIDENE]PALLADIUM(II);ALLYLCHLORO[1,3-BIS(2,6-DIISOPROPYLPHENYL)IMIDAZOL-2-YLIDENE]PALLADIUM(II);ALLYLCHLORO[1,3-BIS(DIISOPROPYLPHENYL)IMIDAZOLE-2-YLIDENE]PALLADIUM(II);ALLYL[1,3-BIS(2,6-DIISOPROPYLPHENYL)IMIDAZOL-2-YLIDENE]CHLOROPALLADIUM(II);CX 21;UMICORE CX21 SC10492 (CAS 478980-03-9)
- 3,5-Dimethyl-N-((2,3,4-trichlorophenyl)sulfonyl)isoxazole-4-carboxamide (CAS 861212-30-8)
- 2-Methoxy-5-nitrobenzamide (CAS 59263-62-6)
- Ethyl 2-(1,4-dioxaspiro[4.5]decan-8-ylidene)acetate (CAS 51656-91-8)
- (2-(4-Oxo-2-thioxothiazolidin-3-yl)ethyl)phosphonic acid (CAS 227316-23-6)
- 2’-Acetoxyacetophenone (CAS 7250-94-4)
- 3,4-Dimethyl-5-(methylsulfamoyl)benzoic acid (CAS 851168-79-1)
- 2-(2-Methoxy-4-(trifluoromethoxy)phenyl)acetonitrile (CAS 886500-40-9)
- 2,7-Bis(alloxycarbonylamino)-9-chloroacridine, Technical Grade (CAS 887353-21-1)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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