Vitamin K1 Impurity 44 CAS 873964-73-9
| CAS No. | 873964-73-9 |
| Molecular Formula | C31H50O2 |
| Molecular Weight | 454.73 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 Vitamin K1 Impurity 44.
As a process- or degradation-related impurity, Vitamin K1 Impurity 44 (CAS 873964-73-9, C31H50O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Vitamin K1 Impurity 44 (C31H50O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 certified reference material (CRM), Vitamin K1 Impurity 44 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 | C31H50O2 |
| Molecular Weight | 454.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 90% |
| Storage | Store at room temperature, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Vitamin Standards
- Vitamin A impurity 26 (CAS CATO-C4X-218726)
- Vitamin K1 Impurity N1 (CAS CATO-C1803497)
- Vitamin K1 Impurity 51 (CAS CATO-C4X-220751)
- Vitamin K1 D7 ( Mixture of Cis & Trans) (CAS CATO-C4X-2207102)
- cis-Vitamin K1 D7 (CAS CATO-C4X-2207103)
- cis-Vitamin K1-d7 (CAS 16033-41-3 (non-labelled))
- Vitamin K1-d7 (CAS 1233937-39-7)
- Vitamin K1 (CAS 81818-54-4)
Recommended Standards
- Cholecalciferol Impurity 34 (CAS CATO-C4X-158634)
- (Z)-[(4-Bromophenyl)[2-(4-chlorophenyl)cyclopropyl]methylidene]amino benzoate (CAS 338415-68-2)
- Cholecalciferol Impurity 33 (CAS CATO-C4X-158633)
- (1S,4AS,7aS)-methyl 1-((tert-butyldimethylsilyl)oxy)-7-(((tert-butyldimethylsilyl)oxy)methyl)-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carboxylate (CAS 122616-17-5)
- Lasmiditan Impurity 47 (CAS CATO-C4X-247847)
- Resmetirom impurity 54 (CAS 62918-73-4)
- Phytomenadione/Vitamin K1 Impurity 83 (CAS CATO-C4X-220783)
- 3-Bromo-1-pyridin-4-ylpyrrolidin-2-one (CAS 178946-35-5)
- N,N-Dimethyl-N′-2-propen-1-ylsulfamide (CAS 98139-54-9)
- 1-(2,5-Dimethylphenyl)cyclopropan-1-ol (CAS 1247940-34-6)
- Ruxolitinib Impurity 231 (CAS CATO-C4X-2058231)
- Methyl 4-(aminomethyl)bicyclo[2.2.1]Heptane-1-carboxylate hydrochloride (CAS 916211-28-4)
- Ald-Ph-amido-PEG2-C2-Boc (CAS 1807521-09-0)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
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