Description

1-Chloropentane (CAS 543-59-9) is a high-purity organic compound with the molecular formula C₅H₁₁Cl, widely utilized in research and industrial applications. This colorless to pale yellow liquid is characterized by its distinct, mild odor and excellent solubility in common organic solvents such as ethanol, ether, and chloroform. With a boiling point of approximately 108-109°C and a density of 0.883 g/mL at 25°C, 1-Chloropentane is a versatile alkyl halide ideal for nucleophilic substitution reactions, Grignard reagent synthesis, and as a solvent or intermediate in organic synthesis. Our product is rigorously tested to ensure ≥98% purity (GC), meeting the stringent demands of pharmaceutical, agrochemical, and material science research. Packaged in amber glass bottles or specialized chemical-resistant containers to ensure stability and longevity.

Properties

• CAS Number: 543-59-9
• Complexity: 19.9
• IUPAC Name: 1-chloropentane
• InChI: InChI=1S/C5H11Cl/c1-2-3-4-5-6/h2-5H2,1H3
• InChI Key: SQCZQTSHSZLZIQ-UHFFFAOYSA-N
• LogP: log Kow = 2.73
• Exact Mass: 106.0549280
• Molecular Formula: C5H11Cl
• Molecular Weight: 106.59
• SMILES: CCCCCCl
• Monoisotopic Mass: 106.0549280
• Physical Description: Amyl chloride appears as a clear colorless to light-brown liquid with an aromatic odor. Flash point may vary from 35 to 54 °F. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air. Vapors may be narcotic in high concentrations.
• Color/Form: Liquid
• Odor: Sweet odor
• Boiling Point: 226 °F at 760 mmHg
• Melting Point: -146 °F
• Flash Point: 34 °F
• Solubility: In water, 197 mg/L at 25 °C
• Density: 0.8834 at 68 °F – Less dense than water; will float
• Vapor Density: 3.67
• Vapor Pressure: 32.9 [mmHg]
• Henry’s Law Constant: Henry’s Law constant: 2.38X10-2 atm-cu m/mole
• Stability/Shelf Life: Stable under recommended storage conditions.
• Autoignition Temperature: 500 °F
• Heat of Combustion: -13,500 Btu/lb = -7,500 cal/g = -314X10+5 J/kg
• Heat of Vaporization: 38.24 kJ/mol at 25 °C
• Surface Tension: 24.9 dynes/cm = 0.0249 N/m at 20 °C
• Refractive Index: Index of refraction: 1.4126 at 20 °C/D
• Synonyms: 1-CHLOROPENTANE, 543-59-9, Pentyl chloride, n-Amyl chloride, Amyl chloride, Pentane, 1-chloro-, n-Pentyl chloride, n-Butylcarbonyl chloride, 0EG9MSD3NK, HSDB 1071, NSC 7898, NSC-7898, EINECS 208-846-4, AMYL CHLORIDE [MI], AI3-24334, 1-CHLOROPENTANE [HSDB], DTXSID40870603, nAmyl chloride, nPentyl chloride, Pentane, 1chloro, UN1107, 1-CHLORPENTANE, CHLORIDE OF AMYL, 1-PENTYL CHLORIDE, N-BUTYLCARBINYL CHLORIDE, DTXCID10818310, 208-846-4, inchi=1/c5h11cl/c1-2-3-4-5-6/h2-5h2,1h, Pentane, chloro-, chloropentane, 1-Chloro-pentane, 29656-63-1, UNII-0EG9MSD3NK, 1-chloranylpentane, MFCD00001015, 1-Chloropentane, 99%, PENTANE,1-CHLORO-, SCHEMBL3164, SCHEMBL44382, WLN: G5, SCHEMBL199631, SCHEMBL228135, SCHEMBL276808, SCHEMBL352537, CHEMBL348039, SCHEMBL2265210, SCHEMBL6432169, SCHEMBL11861932, NSC7898, SBB059951, STL280309, AKOS009158473, UN 1107, LS-13083, DB-052545, NS00043234, ST51046216, EN300-176712, A830122, Q161610, Amyl Chloride; NSC 7898; Pentyl Chloride; n-Amyl Chloride; n-Pentyl Chloride, 7CL

Application

1-Chloropentane is primarily employed as a key alkylating agent in organic synthesis, facilitating the introduction of pentyl groups into target molecules. It serves as a precursor for the preparation of amyl derivatives and organometallic compounds, including pentylmagnesium chloride (Grignard reagent). Additionally, it finds use as a solvent in specialty chemical formulations and as an intermediate in the production of fragrances, lubricants, and surfactants. Its reactivity in SN2 reactions makes it valuable for constructing complex molecular architectures in medicinal chemistry.

Safety and Hazards

GHS Hazard Statements

• H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
• H332: Harmful if inhaled [Warning Acute toxicity, inhalation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P321, P330, P362+P364, P370+P378, P403+P235, and P501

Hazard Classes and Categories

• Flam. Liq. 2 (100%)
• Acute Tox. 4 (100%)
• Acute Tox. 4 (100%)
• Acute Tox. 4 (100%)

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