Phthalic acid, bis-C6-C8-branched alkyl esters C7-rich CAS 71888-89-6
| CAS No. | 71888-89-6 |
| Molecular Formula | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Phthalic acid, bis-C6-C8-branched alkyl esters C7-rich (CAS 71888-89-6), a certified reference material (molecular formula C22H34O4, MW 362.50 g/mol) for analytical method development and quality control.
Structurally, Phthalic acid, bis-C6-C8-branched alkyl esters C7-rich (C22H34O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 362.50 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 | C22H34O4 |
| Molecular Weight | 362.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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.) | 1977 |
Related Phthalic Standards
- Phthalic acid, bis-5-methylhexyl ester (CAS 90937-19-2)
- Phthalic acid, n-butyl-n-decyl ester (CAS 89-19-0)
- Phthalic Acid, Hexyl-2-Ethylhexyl Ester (CAS 75673-16-4)
- Phthalic Acid Bis(2-butoxyethyl) Ester (CAS 117-83-9)
- Phthalic acid, bis(4-methylcyclohexyl) ester (CAS 18249-11-1)
- Phthalic acid, bis-n-heptyl ester D4 (CAS 358731-41-6)
- Phthalic acid, bis-2-n-butoxyethyl ester D4 (CAS 1398065-96-7)
- Phthalic acid, bis-4-methyl-2-pentyl ester D4 (CAS 1398066-13-1)
Recommended Standards
- Diisoheptyl phthalate (CAS 41451-28-9)
- Diheptyl phthalate (CAS 3648-21-3)
- tert-Butyl (2-(4-(3,4-diamino-5-methylphenyl)-piperidin-1-yl)ethyl)(methyl)carbamate (CAS 1189777-88-5)
- Lefamulinum Impurity 48 (CAS CATO-C4X-304748)
- Methyl 1-bromoimidazo[1,5-a]pyridine-6-carboxylate (CAS 1891156-20-9)
- 2-Cyclopropoxyisophthalaldehyde (CAS 1243316-34-8)
- 3-Bromo-2,6-dimethylimidazo[1,2-b]pyridazine (CAS 1897566-49-2)
- 3-(Pyridin-2-yl)-1H-pyrazol-5-amine (CAS 92352-29-9)
- N,N'-(ethane-1,2-diyl)bis(4-methyl-N-(thiophen-2-ylmethyl)benzamide) (CAS 338775-19-2)
- Olopatadine Impurity 23 (CAS 4174-83-8)
- 4-Chloro-2-(2,2,2-trifluoroethyl)-1-(trifluoromethyl)benzene (CAS 1099597-50-8)
- Mirogabalin Impurity 129 (CAS CATO-C4X-2924129)
- 5-Bromo-6-oxo-1,6-dihydropyridine-2-carbonitrile (CAS 1780045-62-6)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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