general

CASNO : 29490-19-5 5-Methyl-1,3,4-thiadiazole-2-thiol is a heterocyclic chemical compound (CAS 29490-19-5) mainly used as a pharmaceutical intermediate, a building block for agricultural chemicals, and a metal corrosion inhibitor. It appears as a white to light cream powder with the molecular formula C₃H₄N₂S₂.

CASNO : 5-Heptylresorcinol is an organic chemical compound [5.7], specifically an alkylresorcinol defined by a resorcinol core attached to a linear seven-carbon heptyl chain [5.3]. It is primarily utilized as a chemical building block in scientific research [5.7], pharmaceutical studies, and organic synthesis.

CASNO : 1635-61-6 5-Chloro-2-nitroaniline is a yellow crystalline solid (CAS 1635-61-6) primarily used as a key chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and dyes. It serves as a vital building block for creating cancer therapeutics, veterinary drug impurities, and histone deacetylase (HDAC) inhibitors.

CASNO : 5-Carboxyphthalide (C₉H₆O₄, CAS 4792-29-4) is a vital chemical intermediate primarily used to synthesize antidepressant drugs like escitalopram. It is typically manufactured by reacting terephthalic acid with formaldehyde in fuming sulfuric acid or chloromethyl chlorosulfate and appears as a high-purity white powder.

CASNO : 36082-50-5 5-Bromo-2,4-dichloropyrimidine (C₄HBrCl₂N₂, CAS 36082-50-5) is a highly reactive halogenopyrimidine used as a key building block in the synthesis of pharmaceuticals, agrochemicals, and nucleoside analogs. It is particularly valued for constructing trisubstituted pyrimidines through selective, stepwise nucleophilic substitution and cross-coupling reactions. [1, 2]

CASNO : 5-Aminotetrazole (CH₃N₅) is an organic compound prized for its high nitrogen content (82%). It is primarily used as a gas-generating propellant in pyrotechnics, airbags, and smoke signals, and as a chemical building block in pharmaceutical, agrochemical, and energetic material synthesis.

CASNO : 136-77-6 4-n-Hexylresorcinol is an organic chemical compound known for its antiseptic, anti-aging, and food-preservation properties. It is widely used in skincare to brighten skin, in medicine as an antiseptic, and in the food industry to prevent browning in shrimp and other crustaceans.

CASNO : 4-n-butylresorcinol is a powerful chemical compound used in skincare to treat hyperpigmentation, dark spots, and melasma. It works by stopping melanin production through the inhibition of tyrosinase and TRP-1 enzymes. It is generally used in topical serums and creams at concentrations ranging from 0.1% to 0.3%

CASNO : 13676-54-5 4,4'-Diphenylmethane bismaleimide (commonly known as BMI or BDM, CAS 13676-54-5) is a high-performance organic compound shaped as a yellow powder with the molecular formula C₂₁H₁₄N₂O₄. It serves as a core monomer for heat-resistant polyimide resins used in aerospace, electronics, and advanced structural composites.

CASNO : 4,4'-Dipyridyl (also known as 4,4'-Bipyridine) is a chemical building block, a PubChem listed organic solid, and a key precursor used to make the weedkiller paraquat.

CASNO : 698-27-1 4-Methylsalicylaldehyde (also known as 2-hydroxy-4-methylbenzaldehyde) is an aromatic organic chemical with the CAS number 698-27-1 and molecular formula C₈H₈O₂. It features a bitter almond, phenolic, and fruity cherry odor profile, making it useful in flavor, fragrance, and pharmaceutical research.

CASNO : 1073-70-7 4-Chlorophenylhydrazine hydrochloride is a chemical compound (CAS 1073-70-7) with the formula C₆H₇ClN₂⋅HCl and a molecular weight of 179.05 g/mol. It appears as a white to light red/pink powder and is used widely as an intermediate in chemical and pharmaceutical manufacturing.