Menaquinone impurity 02 CAS 65941-19-7
| CAS No. | 65941-19-7 |
| Molecular Formula | C31H40O2 |
| Molecular Weight | 444.65 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.
CATO supplies Menaquinone impurity 02 (CAS 65941-19-7), a pharmacopoeial impurity reference standard (molecular formula C31H40O2, MW 444.65 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C31H40O2, Menaquinone impurity 02 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 444.65 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.
CATO manufactures Menaquinone impurity 02 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 | C31H40O2 |
| Molecular Weight | 444.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Menaquinone Standards
- Menaquinone impurity 20 (CAS CATO-C4X-207620)
- Menaquinone impurity 27 (CAS CATO-C4X-207627)
- Menaquinone impurity 28 (CAS CATO-C4X-207628)
- Menaquinone impurity 29 (CAS CATO-C4X-207629)
- Menaquinone impurity 30 (CAS CATO-C4X-207630)
- Menaquinone impurity 31 (CAS CATO-C4X-207631)
- Menaquinone impurity 32 (CAS CATO-C4X-207632)
- Menaquinone Impurity 42 (CAS 13798-18-0)
Recommended Standards
- (10R,13R,14R,17R)-17-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-3,5,9-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-6(10H)-one 88191-14-4 (CAS 88191-14-4)
- Obeticholic Acid Impurity 28 (CAS CATO-C4X-115328)
- (3S)-3-(4-hydroxy-1-naphthalenyl)-3-(5-hydroxy-1-naphthalenyl)-1-isobenzofuranone (3S)-3-(4-oxidanylnaphthalen-1-yl)-3-(5-oxidanylnaphthalen-1-yl)-2-benzofuran-1-one 596-01-0 A832379 (CAS 596-01-0)
- Obeticholic Acid Impurity 44 (CAS CATO-C4X-115344)
- Silodosin Impurity 11 (CAS 239463-74-2)
- Erlotinib impurity 134 (CAS CATO-C4X-1069134)
- Rivastigmine EP Impurity F (CAS 889443-69-0)
- (11bR)-2,6-Dibromo-N,N-bis((S)-1-phenylethyl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine (CAS 1642864-91-2)
- Heptamethylcyclotetrasiloxan-2-ol (CAS 5290-02-8)
- 3-(5-Methyl-1,3-dioxo-1,3,3a,4,7,7a-hexahydro-2H-isoindol-2-yl)benzoic acid (CAS 887631-54-1)
- Ethyl 3-acetyl-4-hydroxybenzoate (CAS 57009-53-7)
- 2-(Trifluoromethyl)quinoline-6-carboxylic acid (CAS 952182-51-3)
- (2-Isobutoxypyridin-3-yl)boronic acid (CAS 1218790-95-4)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com