1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane CAS 546-44-1
| CAS No. | 546-44-1 |
| Molecular Formula | C13H26O2Si3 |
| Molecular Weight | 298.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 298.60 g/mol gives 1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane (CAS 546-44-1), a certified reference material (molecular formula C13H26O2Si3, MW 298.60 g/mol) for analytical method development and quality control.
The molecular framework of 1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane (C13H26O2Si3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. 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.
CATO manufactures 1,1,1,3,5,5,5-Heptamethyl-3-phenyltrisiloxane 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 | C13H26O2Si3 |
| Molecular Weight | 298.60 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1957 |
Related Heptamethyl Standards
- 1,1,1,3,5,5,5-Heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane (CAS 17928-28-8)
- 1,1,1,3,5,5,5-Heptamethyl-3-octyltrisiloxane (CAS 17955-88-3)
- 2,2,4,4,6,6,8-Heptamethyl-8-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane (CAS 10448-09-6)
- 1,1,1,3,5,5,5-Heptamethyl-3-((R)-2-((R)-4-methylcyclohex-3-en-1-yl)propyl)trisiloxane (CAS 1263044-00-3)
- 1,1,1,3,5,5,5-Heptamethyl-3-(3-((tetrahydrofuran-2-yl)methoxy)propyl)trisiloxane (CAS 1361237-41-3)
- 1,2,3,4,5,6,7-Heptamethyl-1H-indene (CAS 86901-30-6)
- 1,1,1,3,5,5,5-Heptamethyl-3-octadecyltrisiloxane (CAS 167160-55-6)
Recommended Standards
- 1823182-80-4 3-chloro-2-(difluoro(1H-1,2,4-triazol-3-yl)methyl)-5-(trifluoromethyl)pyridine KS-000025RN (CAS 1823182-80-4)
- 2'-Chloro-6'-nitro-4'-(trifluoromethoxy)acetanilide (CAS 241154-03-0)
- N-[5-chloro-2-nitro-4-(trifluoromethoxy)phenyl]acetamide (CAS 1455432-43-5)
- 6-Bromo-4-chloro-8-methyl-2-propylquinoline (CAS 1153003-00-9)
- 3-(3,4-Dibromophenyl)propanoic acid (CAS 1261475-94-8)
- ethyl 6,6-dimethylheptanoate (CAS 1803600-08-9)
- N-(4-Methylphenyl)-5-phenyl-1,2,4-oxadiazole-3-carboxamide (CAS 866038-73-5)
- 6-((2-Oxo-2-phenylethyl)thio)-1-phenyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 174535-73-0)
- 4-(3-Chloro-2-fluorophenoxy)-3-fluoroaniline (CAS 1206593-32-9)
- 2-(Ethyl(methyl)amino)-2-methylpropanamide (CAS 334529-10-1)
- 4-{5-[3-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl}-1-{[3-(trifluoromethyl)phenyl]methyl}piperidine (CAS 1025724-60-0)
- 2,5-Dioxopyrrolidin-1-yl 4-(trifluoromethyl)benzoate (CAS 1251533-33-1)
- Daurinoline (CAS 2831-75-6)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
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