About trans-2- Nonenal
trans-2-Nonenal is a premium certified beer flavor standard designed to assist professional beer tasters in identifying and scaling the intensity of papery or cardboard-like off-flavors in beer. This compound, a colorless to pale yellow, clear liquid, boasts a molecular formula of C9H16O and a precise molecular weight of 140.22 g. With a sharp melting point range of 88-90C, it is a vital tool for evaluating beer quality, particularly the oxidative stability during brewing and malting. trans-2-Nonenal is commonly associated with beer aging, where oxidation reactions result in its formation, impacting beers sensory profile. Widely used by brewers and sensory professionals, this standardized solution ensures consistent training and effective quality control analysis in the beer production process.
FAQs of trans-2- Nonenal:
Q: What is the appearance of trans-2-Nonenal?
A: It is a colorless to pale yellow, clear liquid.
Q: What is the primary usage of trans-2-Nonenal?
A: It is used as a certified beer flavor standard to train professionals in recognizing and scaling papery off-flavors caused by beer aging.
Q: What is its molecular weight?
A: The molecular weight of trans-2-Nonenal is 140.22 grams (g).
Q: How is trans-2-Nonenal related to beer aging?
A: It is an off-flavor compound formed due to oxidation reactions during malting and brewing processes, commonly linked to beer aging.
Q: What is the melting point of trans-2-Nonenal?
A: The melting point ranges between 88 and 90C.