Prothioconazole Impurity N7 CAS 134818-67-0
| CAS No. | 134818-67-0 |
| Molecular Formula | C12H13Cl3O |
| Molecular Weight | 279.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Prothioconazole Impurity N7.
Prothioconazole Impurity N7 (CAS 134818-67-0) is a certified pharmaceutical impurity reference standard with the molecular formula C12H13Cl3O and a molecular weight of 279.59 g/mol.
Prothioconazole Impurity N7 (C12H13Cl3O) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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.
Physical & Chemical Properties
| Molecular Formula | C12H13Cl3O |
| Molecular Weight | 279.59 g/mol |
| Purity | >75% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
Related Prothioconazole Standards
- Prothioconazole impurity N1 (CAS 708263-86-9)
- Prothioconazole-Desthio (CAS 120983-64-4)
- Prothioconazole Impurity 1 (CAS 856045-88-0)
- Prothioconazole Impurity 2 (CAS 856045-93-7)
- Prothioconazole Impurity 8 (Mixture of Diastereomers) (CAS 856045-95-9)
- Prothioconazole impurity 2 (CAS 2648945-18-8)
- Prothioconazole (CAS 178928-70-6)
- (S)-Prothioconazole Impurity N1 (CAS 4819-36-7)
Recommended Standards
- 6-Chloro-1-(3,4-dichlorophenyl)-1-oxohexane (CAS 898761-00-7)
- Methyl 5-chloro-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 120503-12-0)
- 6-Chloro-1-(2,4-dichlorophenyl)hexan-1-one (CAS 898786-13-5)
- 3-Chloro-2-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 866039-33-0)
- Promethazine impurity 60 (CAS CATO-C4X-141860)
- Daptomycin Impurity 19 (CAS CATO-C4X-137819)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
- DL-2-(p-Tolyl)glycine (CAS 13227-01-5)
- 3-(4-(Trifluoromethyl)phenyl)pyridin-4-amine (CAS 1261494-14-7)
- Endo-8-Methyl-8-azabicyclo[3.2.1]octan-3-yl 3-hydroxy-2-phenylpropanoate sulfate dihydrate(2:1:2) (CAS 73791-47-6)
- n-(2-((4-Aminophenyl)amino)-4'-methyl-[4,5'-bithiazol]-2'-yl)acetamide hydrobromide (CAS 472979-27-4)
- 3-(2,4-Dimethoxyphenyl)-N-(2-fluorophenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483995-01-3)
- 2-Hydroxy-3-sulfamoylbenzoic acid (CAS 1243443-64-2)
- Insulin degludec (CAS 844439-96-9)
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