1,1,1,3,5,7,7,7-Octamethyl-3,5-diphenyltetrasiloxane CAS 13270-97-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13270-97-8 |
| Molecular Formula | C20H34O3Si4 |
| Molecular Weight | 434.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 1,1,1,3,5,7,7,7-Octamethyl-3,5-diphenyltetrasiloxane (CAS 13270-97-8) pharmaceutical standards reference standard. Molecular formula: C20H34O3Si4. Molecular weight: 434.82 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C20H34O3Si4 |
| Molecular Weight | 434.82 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Octamethyl Standards
- 3,3,7,7,11,11,15,15-Octamethyl-1,5,9,13-tetrathiacyclohexadecane (CAS 110935-37-0)
- 1,1,4,4,7,7,10,10-Octamethyl-2,3,4,7,8,9,10,12-octahydro-1H-dibenzo[b,h]fluorene (CAS 77308-48-6)
- Octamethyl trisilicate (CAS 4221-95-8)
- 1,1',3,3',5,5',6,6'-Octamethyl-1,1',3,3'-tetrahydro-2,2'-spirobi[benzo[d]imidazole] (CAS 99643-38-6)
- Octamethyl-POSS (CAS 17865-85-9)
- 2,2,3,3,9,9,10,10-Octamethyl-4,8-dioxa-3,9-disilaundecan-6-ol (CAS 85951-09-3)
- 2,2,3,3,9,9,10,10-Octamethyl-4,8-dioxa-3,9-disilaundecan-6-amine (CAS 188538-25-2)
- 2,2,3,3,9,9,10,10-OCTAMETHYL-4,8-DIOXA-3,9-DISILAUNDECAN-6-ONE (CAS 127382-65-4)
Recommended Standards
- 5-Chloro-6-iodo-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1305324-81-5)
- 4-(Benzofuran-2-carbonyl)-5-(4-chlorophenyl)-3-hydroxy-1-(5-methylisoxazol-3-yl)-1,5-dihydro-2H-pyrrol-2-one (CAS 618877-26-2)
- 7-Chloro-5-iodo-1-(triisopropylsilyl)-1H-pyrrolo[2,3-c]pyridine (CAS 1198097-05-0)
- 25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 (CAS 25641-18-3)
- (3-Amino-6-methylpyrazin-2-yl)methanol (CAS 2089319-63-9)
- 1,1,1,5,5,5-hexafluoro-3-[(phenylamino)methylidene]pentane-2,4-dione (CAS 142503-36-4)
- Methyl 3-(4-tert-butyl-3-hydroxyphenyl)propanoate (CAS 478063-92-2)
- Ethyl (3-aminophenyl)carbamate (CAS 68621-73-8)
- (3S)-4-(3-cyanophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid (3S)-4-(3-cyanophenyl)-3-(9H-fluoren-9-ylmethoxycarbonylamino)butyric acid (3S)-4-(3-cyanophenyl)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]butanoic acid 270065-87-7 Fmoc-(S)-3-Amino-4-(3-cyanophenyl)-butyric acid (CAS 270065-87-7)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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