1-(3-Mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 480438-85-5 Mercaptopropylisobutyl-POSS® POSS®-Mercaptopropyl-isobutyl substituted PSS-(3-Mercapto)propyl-Heptaisobutyl substituted CAS 480438-85-5
| CAS No. | 480438-85-5 |
| Molecular Formula | C31H70O12SSi8 |
| Molecular Weight | 891.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 891.63 g/mol gives 1-(3-Mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 480438-85-5 Mercaptopropylisobutyl-POSS® POSS®-Mercaptopropyl-isobutyl substituted PSS-(3-Mercapto)propyl-Heptaisobutyl substituted distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(3-Mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 480438-85-5 Mercaptopropylisobutyl-POSS® POSS®-Mercaptopropyl-isobutyl substituted PSS-(3-Mercapto)propyl-Heptaisobutyl substituted (CAS 480438-85-5) is a high-purity analytical reference standard with the molecular formula C31H70O12SSi8 and a molecular weight of 891.63 g/mol.
The molecular framework of 1-(3-Mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 480438-85-5 Mercaptopropylisobutyl-POSS® POSS®-Mercaptopropyl-isobutyl substituted PSS-(3-Mercapto)propyl-Heptaisobutyl substituted (C31H70O12SSi8) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(3-Mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane 480438-85-5 Mercaptopropylisobutyl-POSS® POSS®-Mercaptopropyl-isobutyl substituted PSS-(3-Mercapto)propyl-Heptaisobutyl substituted meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C31H70O12SSi8 |
| Molecular Weight | 891.63 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -3.0 |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
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Recommended Standards
- 1,3,5,7,9,11,13,15-Octaisobutyl-2,4,6,8,10,12,14,16,17,18,19-undecaoxa-1,3,5,7,9,11,13,15-octasilatetracyclo[9.5.1.13,9.15,15]nonadecane-7,13-diol (CAS 307531-90-4)
- trans-2-Octenoyl-CoA (CAS 10018-94-7)
- Trioctadecanoin (CAS 555-43-1)
- Suberyl-CoA (CAS 66060-79-5)
- 3-[1-(3-Chloro-4-fluorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775385-03-9)
- (S)-Methyl 2-((3,3-dimethylbutyl)amino)-3,3-dimethylbutanoate (CAS 1052703-81-7)
- 2-Amino-1-(2-fluorophenyl)butan-1-ol hydrochloride (CAS 1354952-91-2)
- 6-bromo-1h,3h,4h,5h-thiopyrano[4,3-b]indole (CAS 1485633-34-8)
- Ethyl 2,4-dioxo-4-(2,4,6-trimethylphenyl)butanoate (CAS 203870-51-3)
- 3-(4-Methylphenyl)-2-oxopropanoic acid (CAS 38335-22-7)
- Ethyl 2-(1-benzyl-3-oxopiperazin-2-yl)acetate (CAS 61155-09-7)
- 3-(3-bromo-4-fluorophenyl)butanoic acid (CAS 1536945-00-2)
- 2-(3-Chlorophenyl)-3,4-dimethyl-2,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one (CAS 791786-74-8)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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