The Introduction of Monoterpenoids:


Monoterpenes and monoterpenoids represent a set of chemicals widely diffused in plants whose basic structure consists of two linked isoprene units. The monoterpenoids are formed by the addition of an alcoholic group to the monoterpene structure. Monoterpenoids are distributed in higher plants, algae, fungi, and even some insects and mammals, but they are very rare in mosses, ferns, and lichens. Characteristic features of monoterpenoids are their volatility and intensely pungent odors, and they are the most common components in plants responsible for fragrance and flavor. Monoterpenoids now appear as the one group of arthropod natural products for which knowledge of their biochemical, physiological, and ecological roles is most complete. To date, the two most well-studied examples are the iridoid monoterpenoids associated with Chrysomelid beetles and monoterpenes associated with bark beetles. 

Many members of the monoterpene and monoterpenoids family exert interesting pharmacological functions, such as antibacterial, hypotensive, antiinflammatory, and antipruritic characteristics. Since monoterpenoids, in general, show characteristic odor and taste, they have been used as cosmetic materials, food additives, insecticides, insect repellents, and attractant drugs. Monoterpenoids are unknowingly used in perfumes and other preparations by millions of people every day. Many representatives of this class have been characterized by the extracts of several plants traditionally used to relieve pain and treat minor diseases. Monoterpenoids are a fascinating class of compounds that offer a myriad of possibilities. Their enchanting aromas, biological activities, and diverse sources make them valuable assets in various industries. As research continues to unveil their potential applications, we can expect to see monoterpenoids playing an increasingly significant role in our lives, providing us with delightful scents, therapeutic benefits, and flavorful experiences.



Fig 1 Monoterpenoids


Classification of Monoterpenoids:


Monoterpenoids consist of a 10-carbon backbone (2 isoprene units) structure and can be divided into three subgroups: acyclic, monocyclic, and bicyclic. Within each group, the monoterpenoids may be simple unsaturated hydrocarbons or may have functional groups and be alcohols, aldehydes, and ketones.

--Acyclic Monoterpenoids: Acyclic monoterpene hydrocarbons are few in number, but their oxygenated derivatives are more widespread in nature and of greater importance. Important oxygenated acyclic monoterpene derivatives include the terpene alcohol citronellol and the corresponding aldehyde citronellal, both of which occur in the oil of citronella, as well as citral, found in lemongrass oil, and geraniol, which occurs in Turkish geranium oil. The acyclic monoterpenoids are of special importance to the perfumery industry, with the group as a whole being characterized by the pleasant odors of its members.

--Monocyclic Monoterpenoids: Monocyclic monoterpenes usually refer to terpenoids polymerized from two molecules of isoprene and their derivatives with different degrees of saturation and oxygen. Due to different cyclization methods, different structural types are produced, and the more important representatives are menthone and menthol. Among them, the phenolic ketone type is a deformed structural type of monocyclic monoterpenes; its carbon skeleton does not conform to the isoprene rule, and its molecule has a basic structure of a seven-membered aromatic ring. Because of the existence of ketone groups, the seven-membered ring shows certain aromaticities, such as hinokitiol. The study of monocyclic monoterpenoids is divided into four sections: 1,1,3-Trimethylcyclohexane derivatives, which are found in nature, and the more important members formed by the cyclization of acyclic monoterpenoids.

--Bicyclic Monoterpenoids: The bicyclic terpenoids comprise a series of naturally occurring hydrocarbons and related compounds, the majority of which contain ten carbon atoms and are derivatives of bicycloheptanes; it is usual to include the santene group, also containing nine carbon atoms, because of its close relationship. The bicyclic monoterpenoids are divided into four main groups corresponding to the parent alkanes: thujane, carane, pinane, and norbornane. The norbornane is further subdivided to accommodate the varying positions of the alkyl substituents into (1) camphene, (2) bornane, and (3) fenchane derivatives. Thujan-3-ols can be prepared by reduction of (+)-thujone (trans-thujan-3-one) and isothujone (cis-thujan-3-one). A bicyclic monoterpenoid, fenchol (or fenchyl alcohol), is an FDA-approved flavor additive.


Product Description:


At ALL Chemistry, we pride ourselves on delivering innovative and high-quality chemical solutions. We are excited to introduce our latest product line: Monoterpenoids. These remarkable organic compounds, derived from two isoprene units, are renowned for their captivating aromas and versatile applications. Our Monoterpenoids collection features a diverse range of compounds sourced from nature's bounty. These compounds are found in various plants, fungi, and even some animals, offering a wide selection of aromatic options. From the refreshing scent of citrus fruits to the calming aroma of lavender, our Monoterpenoids capture the essence of nature's aromatic powerhouses.

The applications of our Monoterpenoids are vast and varied. In the fragrance industry, our products serve as valuable ingredients in perfumes, colognes, and air fresheners. Their enchanting scents create captivating olfactory experiences that leave a lasting impression. Beyond their aromatic allure, our Monoterpenoids offer numerous benefits in the pharmaceutical and personal care industries. These compounds possess antimicrobial, anti-inflammatory, and antioxidant properties, making them ideal candidates for the development of new drugs, skincare products, and cosmetics. From soothing inflamed skin to preserving the freshness of personal care items, our Monoterpenoids offer multifaceted advantages. Choose ALL Chemistry's Monoterpenoids and unlock the captivating scents, therapeutic benefits, and flavorful experiences that only nature can offer.


Product Category

CAS Number

Product Name
























p-Menthane-3,8-diol (Natural)












7-Z-Trifostigmanoside I







Please contact us for further information if you have a purchase requirement, including pricing, samples, and technical specifications. We look forward to providing our monoterpenoid products. In addition, ALL Chemistry provides a seamless one-stop process development service, ALL Chemistry can provide synthesis and fine chemical services if the existing products can't meet your needs, we have expertise in the synthesis of a broad array of customized molecules, and we offer lab scale custom synthesis, biosynthesis, bioconjugation and analytical services.


Product Advantage:


Provide quality-guaranteed products, all products are provided with a quality analysis report (COA), use advanced instruments such as MS(Mass Spectrometry), HPLC and NMR (Nuclear Magnetic Resonance) for quality inspection.

Professional and reliable packaging ensures the safety and stability of products from transportation, storage to use.

ALL Chemistry provides monoterpenoid products with a purity greater than 95%.

ALL Chemistry guarantees the confidence to put our products in a risk-free environment for worldwide scientists and researchers.

Access our expertise and technical support from anywhere, anytime.


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