产品详情;
CasNo： 600-14-6
分子式： C5H8O2
外观： powder
交货时间： In stock
生产能力： 10000|Gram|Day
技术指标： 99%
| Chemical Properties | colourless liquid ( some sources report this as being a deep green-yellow colour) |
| Chemical Properties | 2,3-Pentanedione has a somewhat sweet odor similar to quinone. This compound has a penetrating, buttery taste on dilution. |
| Occurrence | Identified in the essential oil of Finnish pine. Also reported found in peach, wheaten bread, yogurt, cocoa, coffee, back tea, roasted barley, roasted filbert, roasted peanut, roasted almonds, pecans, soybean, malt, peated malt, chayote, peas, cooked potato, tomato, butter, yogurt, boiled egg, fatty fish, cooked chicken and fat, cooked beef and pork, pork liver, beer, cognac, rum, whiskies, grape wines, cocoa, potato chips, passion fruit, mango, beans, macadamia nut, tamarind, sweet potato, pumpkin, sweet corn, shrimp, oyster, okra, clam, maté and soursop. |
| Preparation | By oxidation of methyl propyl ketone with excess NaNO2 and diluted HCl in the presence of hydroxylamine hydrochloride under a nitrogen blanket. |
| Definition | ChEBI: An alpha-diketone that is pentane substituted at the 2- and 3-positions by oxo groups. |
| Aroma threshold values | Detection: 20 ppb. Aroma characteristics at 1.0%: buttery diacetyl-like, fermented dairy and creamy, popcorn buttery. |
| Taste threshold values | Taste characteristics at 1 to 5 ppm: sweet buttery, creamy, cheesy, slightly toasted dairy, with a rich baked goods nuance and a good mouthfeel. |
| Safety Profile | Confirmed human carcinogen. Poison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes. See also NICKEL COMPOUNDS |
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