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5-bromo-1-cyclopropyl-4-fluoro-1H-indazole
Name: 5-bromo-1-cyclopropyl-4-fluoro-1H-indazole Other Names: 5-bromo-1-cyclopropyl-4-fluoroindazole CAS Number: 2490501-34-1 Chemical Formula: C₁₀H₈BrFN₂ Molecular Weight: 255.09 Density: 1.835±0.14 g/cm³ (25°C, predicted value) Boiling Point: 344.781±22.00 °C (760 Torr, predicted value) Storage...Read more -
5-Bromo-4-fluoro-1H-indazole
English Name: 5-Bromo-4-fluoro-1H-indazole English Other Names: 5-Bromo-4-fluoro-1H-indazole; 5-Bromo-4-fluoro (1H)indazole CAS Number: 1082041-85-7 Chemical Formula: C₇H₄BrFN₂ Molecular Weight: 215.02 g/mol InChI: InChI=1S/C₇H₄BrFN₂/c8-5-1-2-6-4(7(5)9)3-10-11-6/h1-3H,(H,10,11) InChIKey: YJOQUFUS...Read more -
2-Cyanoethyltriethoxysilane
English Name: 2-Cyanoethyltriethoxysilane English Other Names: (2-Cyanoethyl)triethoxysilane; 3-(Triethoxysilyl)propionitrile; 3-triethoxysilylpropanenitrile; (2-cyanoethyl)triethoxy-silan; beta-cyanoethyltriethoxysilane CAS Number: 919-31-3 EINECS Number: 213-050-5 Chemical Formula: C₉H₁₉NO₃Si M...Read more -
3,3′,5,5′-Tetramethylbenzidine
English Name: 3,3′,5,5′-Tetramethylbenzidine English Synonyms: TMB; 4,4′-Bi-2,6-xylidine; 4,4′-Diamino-3,3′,5,5′-tetramethylbiphenyl; TMB substrate; BM blue CAS No.: 54827-17-7 EINECS No.: 259-364-6 Chemical Formula: C₁₆H₂₀N₂ Molecular Weight: 240.34 InChI 1S/C...Read more -
Diethylaminosulfur trifluoride
English Name: Diethylaminosulfur trifluoride English Synonyms: DAST; ET2NSF3; DIETHYLAMINOSULPHUR TRIFLUORIDE; (diethylamino)trifluorosulfur; Diethylamine sulfur trifluoride CAS No.: 38078-09-0 EINECS No.: 253-771-2 Chemical Formula: C₄H₁₀F₃NS Molecular Weight: 161.19 g/mol InChI: InChI=1/C4H10F3...Read more -
Tri-p-Tolylphosphine: A “Hidden Champion” Ligand in Organic Synthesis
In the fields of organometallic chemistry and catalysis, tri-p-tolylphosphine (P(p-tolyl)₃) is gradually moving from the background to the forefront. As an important derivative of triphenylphosphine (PPh₃), this compound, which appears to be merely a benzene ring with three additional methyl grou...Read more -
Tri-o-Tolylphosphine: A “Hidden Champion” in Palladium-Catalyzed Cross-Coupling Reactions
In the vast constellation of organic synthetic chemistry, tri-o-tolylphosphine (o-Tol₃P) may not be as widely known as triphenylphosphine, but its role in modern drug synthesis and materials science is irreplaceable. This white crystalline organophosphine ligand (CAS: 6163-58-2), thanks to its un...Read more -
3,3′,5,5′-Tetramethylbenzidine (TMB): A “Blue Revolution” from Laboratory to Clinical Diagnostics
In modern medical diagnostics and life science research, a seemingly ordinary white crystalline powder carries the hope of countless early disease screenings—this is 3,3′,5,5′-tetramethylbenzidine (TMB). When this compound encounters hydrogen peroxide under the catalysis of peroxidase...Read more -
Diethylaminosulfur trifluoride (DAST): The “Swiss Army Knife” of fluorination reactions
In the vast field of organic synthetic chemistry, diethylaminosulfur trifluoride (DAST) is a legend in the world of fluorinating reagents. Since its initial report by Middleton in the 1970s, this seemingly ordinary yellowish-brown liquid has become one of the most indispensable nucleophilic fluor...Read more -
2-Tolylboronic acid: The “star molecule” in the Suzuki coupling reaction
In the constellation of modern organic synthetic chemistry, 2-Tolylboronic acid (CAS: 16419-60-6) undoubtedly shines brightly. As an important member of the organoboronic acid family, this seemingly simple white crystalline powder plays an irreplaceable role in drug synthesis, materials science, ...Read more -
Great Start
On the eighth day of the first lunar month, we welcome the start of the new year. May 2026 bring a prosperous year, with wealth rolling in! Let’s begin a year full of luck, carrying our New Year’s wishes and striding forward with our heads held high. In the new year, may we face the r...Read more -
4-Methoxyphenylboronic acid: An “electron donor” and a multifunctional chemical building block in organic synthesis
In the constellation of Suzuki coupling reactions, 4-methoxyphenylboronic acid (4-MPBA CAS 5720-07-0) shines like an unassuming yet indispensable star. This seemingly simple molecule—a benzene ring decorated with a methoxy group and a boric acid group at the para-position—plays a crucial role in ...Read more
