Dipropyl 3,4,5,6-tetrachlorophthalate CAS 6928-67-2
| CAS No. | 6928-67-2 |
| Molecular Formula | C14H14Cl4O4 |
| Molecular Weight | 388.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 388.07 g/mol gives Dipropyl 3,4,5,6-tetrachlorophthalate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dipropyl 3,4,5,6-tetrachlorophthalate (CAS 6928-67-2), molecular formula C14H14Cl4O4 and molecular weight 388.07 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Dipropyl 3,4,5,6-tetrachlorophthalate (C14H14Cl4O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 388.07 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.
As a certified reference material (CRM), Dipropyl 3,4,5,6-tetrachlorophthalate 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 | C14H14Cl4O4 |
| Molecular Weight | 388.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 4-(6,8-Dibromo-2-methylimidazo[1,2-a]pyridin-3-yl)thiazol-2-amine (CAS 886507-34-2)
- (4-Bromo-2-fluoro-3-(trifluoromethyl)phenyl)methanol (CAS 2090463-28-6)
- Benzo[d]isothiazol-7-amine (CAS 89795-79-9)
- 1-Allyl-3-piperidin-4-yl-imidazolidin-2-one (CAS 1784798-95-3)
- (S)-2-(pyridin-2-yloxy)propan-1-amine (CAS 174854-95-6)
- Methyl 1-(3-amino-4-hydroxyphenyl)cyclopropane-1-carboxylate (CAS 945244-03-1)
- 1-(tert-Butyl) 2-ethyl (2R,4R)-4-[(methylsulfonyl)oxy]-1,2-pyrrolidinedicarboxylate (CAS 132622-75-4)
- Methyl 4-(6-nitro-1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)benzoate (CAS 302954-91-2)
- N-(3-methoxyphenyl)-N-(methylsulfonyl)glycine (CAS 363589-80-4)
- 4-Cyclopropoxy-2-methylbenzenesulfonamide (CAS 1243404-20-7)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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