1,1,3,3-Tetramethyl-1,3-diphenyldisiloxane CAS 56-33-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56-33-7 |
| Molecular Formula | C16H22OSi2 |
| Molecular Weight | 286.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1,3,3-Tetramethyl-1,3-diphenyldisiloxane (CAS 56-33-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H22OSi2. Molecular weight: 286.52 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H22OSi2 |
| Molecular Weight | 286.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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- 1-Oxo-2-(4-phenoxyphenyl)-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole-7-carboxylic acid (CAS 1005151-01-8)
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- 3-(4-Methyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-1-[3-(trifluoromethyl)benzyl]-2(1H)-pyridinone (CAS 242797-54-2)
- 4418-73-9 PSZ3Q7662U Doradexanthin UNII-PSZ3Q7662U 3,3'-Dihydroxyechinenone 4-Keto-zeaxanthin All-trans-beta-doradexanthin beta-Doradexanthin beta,beta-Caroten-4-one, 3,3'-dihydroxy-, (3S,3'R)- Adonixanthin beta-Caroten-4-one, 3,3'-dihydroxy- (3S,3'R)-3,3'-Dihydroxy-beta,beta-caroten-4-one (3S,3'R)-4-Keto-zeaxanthin (3S,3'R)-Adonixanthin (CAS 4418-73-9)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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