1,1,3,3,5,5-Hexamethyl-1,5-diphenyltrisiloxane CAS 17977-72-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 17977-72-9 |
| Molecular Formula | C18H28O2Si3 |
| Molecular Weight | 360.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1,3,3,5,5-Hexamethyl-1,5-diphenyltrisiloxane (CAS 17977-72-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H28O2Si3. Molecular weight: 360.67 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H28O2Si3 |
| Molecular Weight | 360.67 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Hexamethyl Standards
- 4,4,8,8,12,12-Hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine (CAS 52066-63-4)
- 3-(1,1,1,5,5,5-Hexamethyl-3-((trimethylsilyl)oxy)trisiloxan-3-yl)propan-1-amine (CAS 25357-81-7)
- 3-(1,1,1,5,5,5-Hexamethyl-3-((trimethylsilyl)oxy)trisiloxan-3-yl)-N-methylpropan-1-amine (CAS 40965-80-8)
- 1,1,1,5,5,5-Hexamethyl-3-phenyl-3-(trimethylsilyloxy)trisiloxane (CAS 2116-84-9)
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Recommended Standards
- tert-Butyl 4-bromo-2-chlorobenzyl(cyclopropyl)carbamate (CAS 1704074-34-9)
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- N-[4-Chloro-3-(trifluoromethyl)phenyl]-2-hydroxy-5-nitrobenzamide (CAS 1352440-75-5)
- 06:0 pi(3,4,5)p3 ammonium salt 799268-62-5 (CAS 799268-62-5)
- 3,3''-(((1R,2R)-Cyclohexane-1,2-diylbis(azanediyl))bis(methylene))bis(2'-methoxy-[1,1'-biphenyl]-2-ol) (CAS 928769-12-4)
- 2,6-Dimethyl-N-(o-tolyl)aniline (CAS 68014-57-3)
- Methyl 4-methoxy-3-(thiazol-4-yl)benzoate (CAS 1387566-17-7)
- Cis-2-tert-Butoxycarbonylamino-1-methyl-cyclopentanecarboxylic acid (CAS 1965310-30-8)
- 7-methyl-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one (CAS 1962095-98-2)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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