Menaquinone impurity 38 CAS CATO-C4X-207638
| CAS No. | CATO-C4X-207638 |
| Molecular Formula | C31H42O3 |
| Molecular Weight | 462.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Menaquinone impurity 38 (CAS CATO-C4X-207638, C31H42O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Menaquinone impurity 38 (C31H42O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic 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).
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 | C31H42O3 |
| Molecular Weight | 462.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Menaquinone Standards
- Menaquinone impurity 22 (CAS CATO-C4X-207622)
- Menaquinone impurity 19 (CAS 65061-22-5)
- Menaquinone impurity 25 (CAS CATO-C4X-207625)
- Menaquinone impurity 26 (CAS CATO-C4X-207626)
- Menaquinone impurity 36 (CAS CATO-C4X-207636)
- Menaquinone impurity 37 (CAS CATO-C4X-207637)
- Menaquinone impurity 39 (CAS CATO-C4X-207639)
- Menaquinone Impurity 4 (CAS 72908-86-2)
Recommended Standards
- 17-Amino-3,12-dioxo-28-noroleana-1,9(11)-diene-2-carbonitrile (CAS 1192123-13-9)
- Obeticholic Acid Impurity 42 (CAS CATO-C4X-115342)
- Arachidonyl Serotonin (CAS 187947-37-1)
- Cyclohexyl 2-(4-methoxyphenyl)ethyl ketone (CAS 885122-89-4)
- Tizanidine Impurity 50 (CAS CATO-C4X-144550)
- Axitinib Impurity 22 (CAS CATO-C4X-107122)
- Piperacillin EP Impurity F (CAS 3112735-85-7)
- 6,8-Dibromo-2-(naphthalen-2-yl)quinoline (CAS 860789-79-3)
- N'-(Benzo[d][1,3]dioxol-5-ylmethylene)-3-((3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)amino)propanehydrazide (CAS 292052-49-4)
- 1-(pyridin-4-yl)cyclohexane-1-carboxamide (CAS 682739-20-4)
- 5-(3,4-Dihydro-2H-pyrrol-5-yl)-3-methyl-2-(pyrrolidin-1-yl)pyridine (CAS 1352540-31-8)
- 1-Benzyl-4-(chloroacetyl)piperazine (CAS 56056-37-2)
- 2-(6-Bromo-5-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1804752-00-8)
- (Pro30,Tyr32,Leu34)-Neuropeptide Y (28-36) (CAS 161650-01-7)
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