253688-91-4 Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](3-methyl-2-butenylidene) (tricyclohexylphosphine)ruthenium(II) Isopentenylidene(1,3-dimesitylimidazolidin-2-ylidene) (tricyclohexylphosphine)ruthenium(II) dichloride [SIMes]dichloro(3-methyl-2-butenylidene)(tricyclohexylphosphine)Ru(II) CAS 253688-91-4
| CAS No. | 253688-91-4 |
| Molecular Formula | C26H46Cl2N2Ru |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
253688-91-4 Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](3-methyl-2-butenylidene) (tricyclohexylphosphine)ruthenium(II) Isopentenylidene(1,3-dimesitylimidazolidin-2-ylidene) (tricyclohexylphosphine)ruthenium(II) dichloride [SIMes]dichloro(3-methyl-2-butenylidene)(tricyclohexylphosphine)Ru(II) (CAS 253688-91-4), molecular formula C26H46Cl2N2RuC18H33P and molecular weight 839.07 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 253688-91-4 Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](3-methyl-2-butenylidene) (tricyclohexylphosphine)ruthenium(II) Isopentenylidene(1,3-dimesitylimidazolidin-2-ylidene) (tricyclohexylphosphine)ruthenium(II) dichloride [SIMes]dichloro(3-methyl-2-butenylidene)(tricyclohexylphosphine)Ru(II) (C26H46Cl2N2RuC18H33P) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, chlorine substitution. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H46Cl2N2Ru C18H33P |
| Molecular Weight | 839.07 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- (R)-3-Amino-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one hydrochloride (CAS 1838205-68-7)
- 3-(2-Fluorophenyl)chroman-4-one (CAS 1143863-66-4)
- 2-(3,5-Diethyl-1H-pyrazol-4-yl)acetic acid (CAS 960061-50-1)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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