Aldehyde C-16, commonly known as Strawberry Aldehyde, Strawberry Glycidate, or Ethyl Methylphenylglycidate (EMPG), is a synthetic material that holds an important place in the history of the fragrance industry. Discovered in the late nineteenth to early twentieth century through the Darzens condensation reaction, this substance effectively solved the long-standing challenge of reproducing natural strawberry aroma, which was extremely costly and difficult to extract. An interesting detail is that the name “Aldehyde C-16” is actually a deliberate misnomer created by early perfumers. In order to protect proprietary formulas from competitors, they gave it this name even though its chemical structure contains neither 16 carbon atoms nor an aldehyde group; in reality, it is an epoxide ester. In its original form, this material is an oily liquid ranging in color from clear to pale yellow.
Description
On smelling, it releases a sweet, candy-like fruity aroma that vividly recreates the scent of ripe strawberries, layered with touches of honey and soft floral nuances. Belonging to the fruity family and more specifically the fruity-floral profile, this material has very strong odor impact, good diffusion, and notable substantivity, lasting up to 23 hours on a blotter. In a fragrance formula, Aldehyde C-16 typically appears from the extended top note into the heart note, functioning as a booster for fruity notes and as a highly effective modifier. Perfumers often use it to build strawberry accords, red-fruit accords, or as a sweetening material that brings warmth, juiciness, and a cheerful character to floral compositions.
Its most famous pairings include blends with ionones, hydroxycitronellal, woody notes, rose, jasmine, or alongside other fruity lactones such as Aldehyde C-14. Because of its extremely dense odor character and its tendency to overpower other components, direct use is generally not recommended. Instead, it is commonly diluted in safe solvents such as DPG or TEC. Dilutions of 1% or 10% are typically used so perfumers can measure and control the dosage more accurately.
Applications
Aldehyde C-16 has applications across many sectors, from fine fragrance and home scenting products such as candles and diffusers, to leave-on cosmetics such as lipsticks and creams, as well as cleansing products like soap and shower gel, and even the food flavor industry. According to IFRA safety standards, it is not subject to strict restriction, allowing use levels of up to 15% in pure fragrance compounds. In practice, however, only a small amount, typically from 0.1% to 2%, is enough to achieve the desired olfactory effect. From a safety standpoint, users can be reassured that this substance is not phototoxic and is not among the allergens that must be declared on product labels under EU regulations. However, in its undiluted form, it may cause mild skin and eye irritation, and it should be stored in a tightly sealed container away from heat and direct light to prevent changes to its chemical structure. Thanks to these advantageous properties, Aldehyde C-16 has appeared in countless familiar products on the market, including strawberry-flavored Lip Smackers lip balms, sweet strawberry body care lines, and many perfumes built around a fruity-floral theme.
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