Menaquinone Impurity 4 CAS 72908-86-2
| CAS No. | 72908-86-2 |
| Molecular Formula | C31H40O3 |
| Molecular Weight | 460.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Menaquinone Impurity 4 (CAS 72908-86-2), a pharmacopoeial impurity reference standard (molecular formula C31H40O3, MW 460.65 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C31H40O3, Menaquinone Impurity 4 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 460.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 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.
CATO manufactures Menaquinone Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C31H40O3 |
| Molecular Weight | 460.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Menaquinone Standards
- 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 50 (CAS CATO-C4X-207650)
- Menaquinone Impurity 52 (CAS CATO-C4X-207652)
Recommended Standards
- 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 3,4-dichlorobenzoate (CAS 339106-57-9)
- 11-(Tritylthio)undecanoic acid (CAS 202462-83-7)
- 5-(Fluorosulfonyl)-2-(hexadecylthio)benzoic acid (CAS 199461-25-1)
- 5-Chloro-2-(3-(3-iodobenzoyl)thioureido)benzoic acid (CAS 531539-93-2)
- Capecitabine EP Impurity B (CAS 3094-09-5)
- Rabeprazole Impurity 23 (CAS 86604-74-2)
- Metformin Impurity 13 (CAS 4390-68-5)
- L-Glutamic Acid-13C5,15N, D9 (CAS 1217474-55-9)
- Magnesium Aspartate (CAS 2068-80-6)
- Vericiguat Impurity 102 (CAS 15106-70-4)
- (2,3-Dichloro-6-fluorophenyl)methanol (CAS 886497-48-9)
- (o-Nitrophenyl)-p-benzoquinone (CAS 105946-79-0)
- 4-Bromo-2-(bromomethyl)-1-(trifluoromethyl)benzene (CAS 1214327-32-8)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com