???????
|
|
??????? ??
- ???
- 110-113 °C(lit.)
- ?? ?
- 192-193 °C14 mm Hg(lit.)
- ??
- 1.013
- ???
- 1.4500 (estimate)
- ???
- 192-193°C/14mm
- ?? ??
- Keep in dark place,Sealed in dry,Room Temperature
- ???
- ? ????????, ??? (?? ???)
- ??? ??
- ??? ??
- ?? ?? (pKa)
- 7.80±0.23(Predicted)
- ??
- ?? ???~??
- ??
- 100.00%??. ??? ???? ?? ?? ???
- ?? ??
- ??
- ???? ??
- synthetic
- ???
- ?? ??? ???
- ??
- Air Sensitive
- Merck
- 14,9015
- JECFA Number
- 1878
- BRN
- 784514
- Henry's Law Constant
- 3.7×105 mol/(m3Pa) at 25℃, McFall et al. (2020)
- ???
- ???
- ?? ??
- ????
???
?? ? ?
?? ? ??
?? ?? ??
- InChI
- 1S/C9H10O4/c1-12-7-3-6(5-10)4-8(13-2)9(7)11/h3-5,11H,1-2H3
- InChIKey
- KCDXJAYRVLXPFO-UHFFFAOYSA-N
- SMILES
- COc1cc(C=O)cc(OC)c1O
- LogP
- 1.30
- CAS ??????
- 134-96-3(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | Xn,Xi | ||
|---|---|---|---|
| ?? ???? ?? | 22-36/37/38 | ||
| ????? | 26-37/39-36 | ||
| WGK ?? | 3 | ||
| RTECS ?? | CU5760000 | ||
| ?? ?? ?? | Irritant | ||
| TSCA | TSCA listed | ||
| HS ?? | 29124900 | ||
| ???? ??? | 11 - Combustible Solids | ||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
??????? C??? ??, ??, ??
??
Syringaldehyde is an important constituent of many plant isolates and has widespread occurrence in wood products. It can be easily converted to trimethoxy-benzaldehyde which is an essential intermediate of the antibacterial drug trimethoprim. It is also used in the colorimetric determination of free chlorine in water.??? ??
light yellow-green to brown crystalline powder.??
Reported found in pineapple, beer, wine, grape brandy, rum, many different whisky products, sherry, roasted barley and hardwood smoke??
Syringaldehyde is used in biological studies for the isolation and structural characterization of milled wood lignin, dioxane lignin, and cellulolytic lignin preparation from Brewer''s spent grain.?? ??
Vanillin is converted to 5-iodovanillin, which is treated with sodium methoxide to form 4-hydroxy-3,5- dimethyxybenzaldehyde.??
ChEBI: A hydroxybenzaldehyde that is 4-hydroxybenzaldehyde substituted by methoxy groups at positions 3 and 5. Isolated from Pisonia aculeata and Panax japonicus var. major, it exhibits hypoglycemic activity.?? ??
Syringaldehyde is an aromatic phenolic aldehyde and a degradation product of lignin. It exhibits antioxidant activity and is reported to inhibit prostaglandin synthetase enzyme. The synthetic form of syringaldehyde is commercially used in pharmaceuticals, food, cosmetics, textiles, pulp and paper industries.Purification Methods
Crystallise syringaldehyde from pet ether. [Beilstein 8 H 391, 8 IV 2718.]??????? ?? ?? ? ???
???
?? ??
??????? ?? ??
???( 628)?? ??
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