API series

Procaine Hydrochloride CAS 51-05-8 is the water-soluble hydrochloride salt of procaine. It is the specific formulation used in clinical medicine, famously marketed under the brand name ​Novocain. While its use in mainstream practice has diminished, it remains a historically pivotal drug and is still employed in specific medical and therapeutic contexts.  

Ethyl (R)-4-cyano-3-hydroxybutyrate​ CAS 141942-85-0 is a chiral, bifunctional building block of significant importance in asymmetric synthesis. It contains a stereogenic center with (R)-configuration, an ethyl ester group, and a terminal nitrile group, making it a versatile precursor for constructing complex chiral molecules, particularly in pharmaceutical applications. This compound is a ​stereodefined, multifunctional chiral building block​ where the (R)-configured alcohol and versatile cyano group provide unique synthetic leverage. It serves as a ​privileged precursor for high-value pharmaceutical intermediates, particularly statin side chains, by offering superior and orthogonal reactivity compared to its chloro analog. ​  

Ethyl (S)-4-chloro-3-hydroxybutyrate​ CAS 86728-85-0 is a chiral, bifunctional ester and a highly valuable building block in asymmetric synthesis. It features a terminal chloro group, a secondary alcohol with defined (S)-stereochemistry, and an ethyl ester, providing three distinct reactive handles for chemical transformation from a single enantiomerically pure scaffold. This compound is a ​chirally pure, trifunctional building block​ that integrates a reactive ethyl ester, a stereodefined secondary alcohol, and a terminal chloride into a compact C4 skeleton. It is the ​preferred industrial precursor​ for synthesizing the chiral side chain of blockbuster statin drugs due to its optimal balance of reactivity, stability, and efficient biocatalytic production.  

(S)-4-Chloro-3-hydroxybutyronitrile​ CAS 127913-44-4 is a chiral, bifunctional organic molecule serving as a versatile building block in asymmetric synthesis. It features a nitrile group, a secondary alcohol with defined (S)-stereochemistry, and a terminal chloro substituent, allowing for multiple divergent chemical transformations from a single, enantiomerically pure scaffold.(S)-4-Chloro-3-hydroxybutyronitrile is a ​privileged, enantiomerically pure chiral building block​ that provides a compact, multifunctional scaffold with three differentiable reaction sites. Its core value lies in enabling the efficient, stereocontrolled synthesis of complex chiral molecules, particularly pharmacologically active intermediates, with high atom economy and strategic flexibility.  

Trimethylamine hydrochloride (TMA·HCl)​​ CAS 593-81-7 is the hydrochloride salt of trimethylamine (TMA), a simple tertiary alkylamine. It is a solid, crystalline form of the normally gaseous and foul-smelling trimethylamine, which makes it much more convenient to handle, store, and weigh precisely.Trimethylamine Hydrochloride is the ​safe, stable, and precisely weighable solid equivalent of gaseous trimethylamine (TMA)​. It transforms a hazardous, malodorous gas into a controllable reagent, eliminating the major handling and safety challenges while enabling exact stoichiometry in critical synthetic steps.  

L-Carnitine-L-tartrate​ CAS 36687-82-8 is a well-defined, crystalline salt formed through the ionic bonding of one molecule of L-carnitine (the biologically active enantiomer) and one molecule of L-tartaric acid (the naturally occurring enantiomer). It is specifically engineered as a superior solid form of carnitine for dietary supplements and functional foods. L-Carnitine-L-tartrate is a ​non-hygroscopic, highly stable salt form of L-carnitine, specifically engineered for superior manufacturing and performance. It delivers the essential metabolic benefits of L-carnitine with added advantages for physical recovery, excelling in solid-dose and powdered supplement formulations where stability and clinical validation are paramount. ​  

L-Carnitine​ CAS 541-15-1 is a naturally occurring, quaternary ammonium compound biosynthesized from the amino acids lysine and methionine. It is a chiral molecule, with the L-enantiomer being the biologically active form. Structurally, it functions as a carrier molecule for long-chain fatty acids. L-Carnitine is the ​essential biological shuttle​ required for transporting long-chain fatty acids into the mitochondria for energy production. It is a conditionally essential nutrient that optimizes cellular energy metabolism, making it fundamental for muscular, cardiovascular, and metabolic health.  

L(+)-Choline bitartrate CAS 87-67-2​ is an organic salt compound formed from one molecule of choline (a quaternary ammonium cation and essential nutrient) and one molecule of L(+)-tartaric acid (a natural dicarboxylic acid). It is a specific, enantiomerically pure form of choline salt where the counterion is derived from natural tartaric acid.It is a high-purity, stable, and highly bioavailable source of essential choline, combining the vital nutrient with a natural, food-grade organic acid. It offers a superior balance of safety, solubility, and cost-effectiveness​ for dietary supplementation and food fortification.    

Dichloromethane (DCM)​ CAS 75-09-2, also known as methylene chloride, is a volatile, chlorinated hydrocarbon. It is a simple molecule consisting of a methane core where two hydrogen atoms are replaced by chlorine atoms. It is one of the most widely used industrial solvents due to its unique combination of properties. Dichloromethane (DCM) is a ​versatile, high-performance chlorinated solvent​ that delivers an unparalleled balance of powerful solvency, low boiling point, and non-flammability under standard conditions. Despite increasing regulatory scrutiny, it remains the solvent of choice for applications where its unique combination of properties cannot be matched by alternatives without significant compromise in performance, time, or cost.  

2-Amino-4-tert-butylphenol CAS 1199-46-8 ​ is an aromatic organic compound featuring both an amine and a phenolic hydroxyl group on a benzene ring that is further substituted with a bulky tert-butyl group. It is a versatile sterically hindered aminophenol​ that serves as a key building block in specialty chemical synthesis. 2-Amino-4-tert-butylphenol is a sterically hindered, amphoteric building block​ that uniquely combines an electron-rich aromatic amine with a phenolic hydroxyl group, all anchored by a bulky tert-butyl substituent. This specific structure makes it an essential precursor for synthesizing high-performance, non-extractable stabilizers and vivid, lightfast colorants​ in demanding industrial applications.  

4-tert-Butyl-2-nitrophenol​ CAS 3279-07-0 is an organic compound belonging to the class of nitrophenols. It features a phenol ring substituted with a strong electron-donating tert-butyl group at the para position and a strong electron-withdrawing nitro group ortho to the hydroxyl group. This combination of substituents creates unique electronic and steric properties.4-tert-Butyl-2-nitrophenol is a strategically substituted phenolic building block​ whose unique structure—combining a sterically bulky electron-donating group with an ortho-positioned electron-withdrawing nitro group—makes it an indispensable precursor for high-performance, sterically hindered stabilizers and dyes. Its specific substitution pattern enables precise molecular architectures unattainable with simpler phenols.  

2,4,5-Trichloronitrobenzene​ CAS 89-69-0 is a chlorinated nitroaromatic compound, consisting of a benzene ring substituted with three chlorine atoms at the 2-, 4-, and 5- positions and a nitro group (-NO₂) at the 1-position. It is a key industrial intermediate with a defined asymmetry due to its specific substitution pattern. 2,4,5-Trichloronitrobenzene is a highly specialized and regiochemically defined synthon​ for agrochemical synthesis. Its precise arrangement of three chlorine atoms and one powerfully electron-withdrawing nitro group creates a predictable reactivity profile, enabling the efficient, multi-step construction of complex, bioactive molecules, particularly fungicides and herbicides.