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China, Chinese Chemical Intermediate N-Bromosuccinimide 99% CAS 128-08-51 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Organic ChemicalsAmineN-BromosuccinimideN-Bromosuccinimide 99%
Hangzhou Tianlong Biotechnology Co Ltd
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Product Description Product Description Common NameN-BromosuccinimideCAS Number128-08-5Molecular Weight177.984Density2.0±0.1 g/cm3Boiling Point221.4±23.0 °C at 760 mmHgMolecular FormulaC4H4BrNO2Melting Point175-180 °C (dec.)(lit.)Chemical & Physical PropertiesDensity2.0±0.1 g/cm3Boiling Point221.4±23.0 °C at 760 mmHgMelting Point175-180 °C (dec.)(lit.)Molecular FormulaC4H4BrNO2Molecular Weight177.984Flash Point87.7±22.6 °CExact Mass176.942535PSA37.38000LogP-0.70Vapour Pressure0.1±0.4 mmHg at 25°CIndex of Refraction1.606StabilityStable. Incompatible with strong oxidizing agents, halogenated hydrocarbons. Packaging & Shipping For liquid200Ltr/drum, 20L/drum, 1L/bottle, 500ml/bottle, 250ml/bottle, 100ml/bottle.For solid25 kg/drum, 25kg/bag, 1kg/bag or on the requirement of client.Delivery Detail20-30days ApplicationsN-Bromosuccinimide (NBS) is a versatile brominating and oxidizing agent widely used in organic synthesis, pharmaceuticals, and material science. Below are its key applications: 1. Organic Synthesis Allylic & Benzylic Bromination Selectively brominates alkenes (e.g., cyclohexene → 3-bromocyclohexene) and aromatics under mild conditions.Example: Synthesis of brominated terpenes for fragrances. Electrophilic Aromatic Substitution Brominates phenols, anilines, and activated rings (e.g., para-bromoaniline production). Oxidation Reactions Converts alcohols to aldehydes/ketones (alternative to PCC/Dess-Martin).Oxidizes thioethers to sulfoxides (e.g., in drug metabolism studies). 2. Pharmaceutical & Agrochemistry Drug Intermediate SynthesisKey step in producing antibiotics (e.g., cephalosporins) and anticancer agents. Agrochemical BrominationIntroduces bromine into herbicide/pesticide structures (e.g., bromophenols). 3. Polymer & Material Science Flame Retardant ModificationBrominates polymers (e.g., polystyrene) to enhance flame resistance. PhotoinitiatorsUsed in UV-curable coatings/resins. 4. Other Applications Gold ExtractionOxidizes gold ores in hydrometallurgy. Water TreatmentDisinfectant for pools (slow-release bromine source). Key PropertiesSelectivity: Prefers allylic/benzylic positions over random bromination.Solubility: Reacts in DCM, THF, or acetonitrile (insoluble in water).Safety: Releases Br2 upon decomposition; handle in fume hood.Advantages Over Br2Controlled reactivity (less hazardous than liquid bromine).Solid form (easier to measure/store). SummaryNBS is indispensable for: Selective bromination (alkenes, aromatics) Pharma/agro intermediates Polymer functionalizationIts balance of reactivity and safety makes it a staple in labs, though alternatives like DBDMH are emerging. Company ProfileHANGZHOU TIANLONG BIOTECHNOLOGYCO.,LTDADD: NO.338, FENGQI EAST ROAD, HANGZHOU CITY, ZHEJANG PROVINCE, CHINA P.C:310020 Web: chemsales.en.made-in-china.comGood reputation is based on high-quality product and sincere services,long-term cooperation is based on trust and mutual benefits.
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