{"id":3216,"date":"2025-08-28T16:34:00","date_gmt":"2025-08-28T08:34:00","guid":{"rendered":"https:\/\/www.honorpigments.com\/?post_type=product&p=3216"},"modified":"2025-11-30T18:28:52","modified_gmt":"2025-11-30T10:28:52","slug":"1-bromo-4-pentene","status":"publish","type":"product","link":"https:\/\/www.honorpigment.com\/sq\/produkt\/1-bromo-4-pentene\/","title":{"rendered":"1-Bromo-4-pentene (CAS NO.: 1119-51-3)"},"content":{"rendered":"

Product Overview<\/h3>\n

1-Bromo-4-pentene<\/strong> (also known as 5-Bromo-1-pentene<\/strong>or 4-Pentenyl bromide) CAS No.: 1119-51-3 , with the chemical formula C\u2085H\u2089Br and a molecular weight of 149.03 g\/mol. It is a clear colorless to light yellow liquid. This compound belongs to the class of alkyl halides with an alkene group and is primarily used in organic synthesis and as a reagent, though it is subject to safety regulations due to its flammable and irritant properties.<\/p>\n

Properties<\/h3>\n

5-Bromo-1-pentene exhibits the following key physical and chemical properties:<\/p>\n

    \n
  • Physical State<\/strong>: Liquid (at room temperature).<\/li>\n
  • Appearance<\/strong>: Clear colorless to light yellow liquid.<\/li>\n
  • Odor<\/strong>: Not specified.<\/li>\n
  • Melting Point<\/strong>: -106.7 \u00b0C (estimate).<\/li>\n
  • Boiling Point<\/strong>: 126-127 \u00b0C at 765 mmHg (lit.).<\/li>\n
  • Density<\/strong>: 1.258 g\/mL at 25 \u00b0C (lit.).<\/li>\n
  • Solubility<\/strong>: Insoluble in water; soluble in organic solvents like chloroform, ethanol, and ether.<\/li>\n
  • Stability<\/strong>: Stable under normal conditions; incompatible with strong oxidizing agents; flammable.<\/li>\n
  • Toxicity<\/strong>: Moderately toxic; causes skin irritation, eye irritation, and respiratory irritation; may cause dizziness, nausea, and central nervous system effects upon inhalation.<\/li>\n<\/ul>\n

    Applications<\/h3>\n

    The primary applications of 5-bromo-1-pentene include:<\/p>\n

      \n
    • Organic Synthesis Intermediate<\/strong>: Used in the stereoselective synthesis of 7\u03b1-(3-carboxypropyl) estradiol, preparation of thioacetates like those in sialic acid derivatives, and recent syntheses of DL-histrionicotoxin and benzophenone-containing fatty acids.<\/li>\n
    • Reagent<\/strong>: Employed in the production of pharmaceuticals, agrochemicals, fragrances, polymers, and as an analytical reagent.<\/li>\n
    • Other<\/strong>: Serves as a versatile building block in organic chemistry for introducing alkyl chains with functional groups.<\/li>\n<\/ul>\n

      Classification<\/h3>\n

      The following table outlines the classification of 5-bromo-1-pentene based on chemical properties, uses, and regulations:<\/p>\n

      \n
      \n
      <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n
      Classification Type<\/th>\nSpecific Category<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
      Chemical Class<\/strong><\/td>\nAlkyl Halide (Bromoalkene)<\/td>\nAn unsaturated bromoalkane, reactive in nucleophilic substitution and addition reactions.<\/td>\n<\/tr>\n
      Usage Class<\/strong><\/td>\nOrganic Synthesis Reagent\/Intermediate<\/td>\nPrimarily used as a reagent and intermediate in chemical synthesis.<\/td>\n<\/tr>\n
      Hazard Class<\/strong><\/td>\nFlammable Liquid (UN 1993); Irritant<\/td>\nFlammable (H225, flash point ~31 \u00b0C); skin irritant (H315), eye irritant (H319), respiratory irritant (H335); Packing Group III.<\/td>\n<\/tr>\n
      Regulatory Class<\/strong><\/td>\nControlled Chemical (REACH, TSCA)<\/td>\nListed under EU REACH and US TSCA; subject to environmental and safety controls (WGK 3 in Germany).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>","protected":false},"excerpt":{"rendered":"

      CAS NO.: 1119-51-3<\/p>\n

      P\u00ebrmbajtje:98.00%<\/p>\n

      Application: Used in the stereoselective synthesis of 7\u03b1-(3-carboxypropyl) estradiol, preparation of thioacetates like those in sialic acid derivatives, and recent syntheses of DL-histrionicotoxin and benzophenone-containing fatty acids. etc..<\/p>","protected":false},"featured_media":3217,"template":"","meta":[],"product_brand":[],"product_cat":[86],"product_tag":[],"class_list":{"0":"post-3216","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-brominated-compounds-and-derivatives","7":"stm_brands-honor-intermediates","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product\/3216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product\/3216\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/media\/3217"}],"wp:attachment":[{"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/media?parent=3216"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product_brand?post=3216"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product_cat?post=3216"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.honorpigment.com\/sq\/wp-json\/wp\/v2\/product_tag?post=3216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}