????????????
|
|
???????????? ??
- ???
- 82-85 °C(lit.)
- ??
- D25.4 +58.5° (c = 2.56 in abs alcohol)
- ?? ?
- 260 °C(lit.)
- ??
- 1.28
- ???
- 60 ° (C=2, EtOH)
- ?? ??
- Inert atmosphere,Room Temperature
- ???
- ?????(?? ???), ???(?? ???), ???(?? ???)
- ??? ??
- ??
- ??
- ???? ??? ??
- ??
- ?? ??
- ?? ??
- ?? ??
- optical activity
- [α]22/D +58.8°, c = 2.5 in ethanol
- ???
- ?? ???
- Merck
- 14,8881
- BRN
- 79290
- InChIKey
- ZIJKGAXBCRWEOL-SAXBRCJISA-N
- LogP
- 3.19
- CAS ??????
- 126-14-7(CAS DataBase Reference)
??
| ??? ?? | Xi | ||
|---|---|---|---|
| ?? ???? ?? | 36/37/38 | ||
| ????? | 24/25-37/39-26 | ||
| WGK ?? | 2 | ||
| RTECS ?? | WN6620000 | ||
| F ?????? | 3 | ||
| HS ?? | 29400090 | ||
| ?? | LD50 orally in Rabbit: 5000 mg/kg LD50 dermal Rabbit 5000 mg/kg | ||
| ???? ?? | KE-33203 |
???????????? C??? ??, ??, ??
??? ??
Sucrose octaacetate occurs as white hygroscopic powder. It is practically odorless with a bitter taste.??
Octa-O-acetyl D-(+)-Surcose was used in studies involving human bitter taste receptor hTAS2R46.?? ??
Sucrose octaacetate is typically produced by chemical synthesis; one reported synthetic method is by pyridine-catalyzed acetylation of sucrose.?? ??
May be prepared by heating sucrose, acetamide and sodium acetate; or by acetylation of sucrose using acetic anhydride, zinc chloride and acetic acid.Pharmaceutical Applications
Sucrose octaacetate is used as an alcohol denaturant in pharmaceutical formulations. It is also used as a bittering agent, and is incorporated into preparations intended to deter nail-biting or thumb-sucking.Safety Profile
Slightly toxic by ingestion andskin contact. A skin irritant. When heated todecomposition it emits acrid smoke and irritating vapors.Safety
Sucrose octaacetate is generally regarded as safe. It is considered slightly hazardous in cases of skin contact (irritant), ingestion, or inhalation.LD50 (rabbit, skin): >5 g/kg
LD50 (rat, oral): >5 g/kg
??
Sucrose octaacetate is a stable material and should be stored in a well-closed, airtight container. Store in a cool, dry place; moisture may cause instability.Purification Methods
After three recrystallisations from EtOH or 95% EtOH (charcoal), the m of the octaacetate rises to 88-90o, or Et2O with m 89o and [] D +58.5o (c 2.6, EtOH). It has a bitter taste. [Linstead et al. J Am Chem Soc 62 3260 1940, Lemieux & Huber J Am Chem Soc 78 4117 1956, Beilstein 17/8 V 410.]Regulatory Status
GRAS listed. Approved by the FDA as both a direct and an indirect food additive, and as a nail-biting deterrent for over-the-counter drug products.???????????? ?? ?? ? ???
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