2,5-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol cas 89852-99-3 liquid support customized

The most common name for this compound is L-menthyl ethyl ethyl acetate. It is an important synthetic fragrance ingredient widely used in the fragrance and flavor industry, as well as in personal care products and the tobacco industry.
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1. Basic Information
· CAS Number: 89852-99-3
· Chemical Name:
· L-Menthol-based Ethyl Ethyl Glycol Acetate
· (±)-1,2,3,4,5,6,7,8-Octahydro-2,3,8-Tetramethyl-2-acetylamino-1-naphthalene-2-ol (This is the complex name based on the earlier CAS registration, but the above name is now more commonly used)
· International Cosmetic Ingredient (INCI) Name: L-Menthyl Ethyleneglycol Carbonate
· Molecular Formula: C₁₅H₂₈O₃
· Structural Formula: It is an ester formed by the reaction of the hydroxyl group of L-menthol (derived from mint) with ethyl ethyl glycol carbonate. Its structure retains the cyclohexane skeleton and refreshing properties of menthol.
2. Physical and Chemical Properties
· Appearance: Usually a colorless to pale yellow transparent liquid.
· Odor: Has a very faint, fresh mint-like fragrance, but its main value lies not in its smell, but in its sensory properties.
· Solubility: Easily soluble in organic solvents such as ethanol, acetone, and chloroform, and almost insoluble in water.
· Stability: Chemically stable, and does not easily change color or oxidize.
· Safety: Use at the specified concentration is considered safe. It is included in China's "Directory of Cosmetics Raw Materials that Have Been Used", and follows the relevant usage limits and specifications.
3. Main Features and Functions
The core value of L-mint-based ethyl ethyl acetate lies in its ability to produce a long-lasting and mild cooling sensation, which is similar to menthol (menthol oil), but with several key advantages:
1. Long-lasting cooling effect: Its cooling effect lasts for a very long time, lasting for several hours, much longer than menthol (which usually lasts only a few minutes to several tens of minutes).
2. Mild effect: Compared to menthol, it has less irritation and does not cause a burning or stinging sensation, providing a more comfortable skin feel.
3. No bitter taste: In oral care products, it does not bring about a noticeable bitter taste like menthol does.
4. Good compatibility: It can be combined with various cosmetic raw materials and fragrances without affecting the overall aroma of the product.
4. Main application fields
Due to its long-lasting cooling effect, it is widely used in the following products:
· Cosmetics and personal care products:
· Skin care products: Used for lotions, creams, essences, masks, eye creams, etc., providing a refreshing and invigorating experience.
· Lip products: Used for lip balms and lip glosses, bringing a lasting cool sensation.
· Sun protection products: Add a cool skin sensation to sunscreen, alleviating the discomfort caused by sun exposure.
· Post-shave care: Used for aftershave waters and gels, providing a soothing and cooling effect.
· Oral care products:
· Toothpaste, mouthwash, chewing gum, etc., providing long-lasting fresh breath and a cool sensation in the mouth, without any bitter taste.
· Tobacco industry:
· As an additive in cigarette filters or tobacco, it can produce a lasting cool throat sensation, enhancing the smoking experience.
· Medical field:
· Used in some topical pain-relieving ointments, gels, or patches, by generating a cooling sensation to divert attention from pain and an auxiliary soothing effect.
5. Market and Suppliers
This is a highly commercialized synthetic fragrance. Many well-known fragrance and flavor companies worldwide produce and sell it, such as:
· Chivaston
· Firmaith
· International Fragrance and Flavor Company
· Dih Xin - The product of Dih Xin, with the trade name "Freshsens MP-20", is very well-known in the industry.
In the Chinese market, there are also many chemical raw material suppliers who can supply this product.
Summary

CAS 89852-99-3 (L-menthyl ethyl ethanol acetate) is a highly effective and long-lasting coolant. Although it does not instantly cool the skin by activating the TRPM8 cold receptor (like menthol does), it provides a long-lasting and mild cooling sensation on the skin and mucous membranes through other mechanisms. It is precisely because of its outstanding sensory properties that it has become one of the indispensable functional ingredients in modern cosmetics, oral care products, and tobacco products.