Vitamin K1 Impurity 61 CAS 121917-04-2
| CAS No. | 121917-04-2 |
| Molecular Formula | C16H14O2 |
| Molecular Weight | 238.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Vitamin K1 Impurity 61 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.
Vitamin K1 Impurity 61 (CAS 121917-04-2) is a certified pharmaceutical impurity reference standard with the molecular formula C16H14O2 and a molecular weight of 238.28 g/mol.
The molecular framework of Vitamin K1 Impurity 61 (C16H14O2) 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 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.
Physical & Chemical Properties
| Molecular Formula | C16H14O2 |
| Molecular Weight | 238.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
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Recommended Standards
- 3,3'-(Butane-1,4-diylbis(oxy))bis(propane-1,2-diol) (CAS 45176-21-4)
- Butalbital Impurity 1 (CAS CATO-C4X-19831)
- Drotaverine Impurity 12 (CAS 92157-09-0)
- Phenytoin impurity 5 (CAS 3254-93-1)
- Relugolix Impurity 97 (CAS CATO-C4X-242997)
- Ceftazidime Impurity 40 (CAS CATO-C4X-121240)
- Landiolol Impurity 20 (CAS CATO-C4X-262120)
- 9-Oxo-9H-thioxanthene-3-carboxylic Acid (CAS 51762-88-0)
- Lemborexant Impurity 85 (CAS CATO-C4X-304285)
- 1-(3-Chloro-2-methylphenyl)-1H-pyrrole-2-carboxylic acid (CAS 910443-63-9)
- [2-fluoro-6-(methylsulfanyl)phenyl]methanamine (CAS 1516651-17-4)
- 5-(Benzo[d][1,3]dioxol-5-yl)thiophene-2-carbaldehyde (CAS 887987-54-4)
- 3-(9H-Purin-6-yl)aniline (CAS 918537-10-7)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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