Description

1-Bromo-4-chlorobutane (CAS No. 6940-78-9) is a high-purity halogenated alkane with the molecular formula C₄H₈BrCl, widely used in organic synthesis and pharmaceutical research. This compound features a linear butane chain substituted with bromine and chlorine at the terminal positions, making it a versatile building block for nucleophilic substitution reactions, cyclizations, and cross-coupling methodologies. Available in rigorously controlled batches, our product is characterized by GC/MS and NMR to ensure ≥98% purity, meeting the stringent demands of research and industrial applications. Packaged under inert gas to prevent degradation, it is supplied in amber glass bottles with tamper-evident seals for optimal shelf stability. Ideal for synthesizing heterocycles, surfactants, or intermediates in agrochemical and drug development.

Properties

• CAS Number: 6940-78-9
• Complexity: 23.5
• IUPAC Name: 1-bromo-4-chloro-butane
• InChI: InChI=1S/C4H8BrCl/c5-3-1-2-4-6/h1-4H2
• InChI Key: NIDSRGCVYOEDFW-UHFFFAOYSA-N
• Exact Mass: 169.94979
• Molecular Formula: C4H8BrCl
• Molecular Weight: 171.46
• SMILES: C(CCBr)CCl
• Monoisotopic Mass: 169.94979
• Synonyms: 1-Bromo-4-chlorobutane, Butane, 1-bromo-4-chloro-, 3WY7Z6MQN8, DTXSID1049350, NSC-60193, DTXCID4029309, TETRAMETHYLENECHLOROBROMIDE, 230-089-3, inchi=1/c4h8brcl/c5-3-1-2-4-6/h1-4h, nidsrgcvyoedfw-uhfffaoysa-n, 6940-78-9, Tetramethylene chlorobromide, 4-Bromo-1-chlorobutane, 1-Chloro-4-bromobutane, 4-Chlorobutyl Bromide, 1219803-72-1, 1-bromo-4-chloro butane, MFCD00001010, 1-Bromo-4-chloro-butane, C4H8BrCl, 4-Bromobutyl Chloride, 4-chlorobromobutane, NSC60193, EINECS 230-089-3, bromo 4 chlorobutane, bromo-4-chlorobutane, NSC 60193, 4-Chloro-bromobutane, Bromo-4-chloro-butane, 1-bromo 4-chorobutane, l-bromo-4-chlorobutane, 1-bromo 4-chlorobutane, 4-chloro-1-bromobutane, 4-chloro-1-bromo-butane, UNII-3WY7Z6MQN8, SCHEMBL187403, CHEMBL350215, SCHEMBL6900807, SCHEMBL8345658, 1-Bromo-4-chlorobutane, 99%, SCHEMBL11312316, Tox21_202866, AKOS009159270, CS-W017647, FB00908, FS-4201, NCGC00260412-01, CAS-6940-78-9, B1345, NS00036845, EN300-31202, F11271, F0001-1805

Application

1-Bromo-4-chlorobutane serves as a key precursor in the synthesis of pyrrolidines and other N-heterocycles via intramolecular alkylation. It is employed in phase-transfer catalysis and Grignard reactions due to its bifunctional reactivity. Researchers also utilize it to modify polymers or create quaternary ammonium compounds for surfactant applications.

Safety and Hazards

GHS Hazard Statements

• H226 (88.3%): Flammable liquid and vapor [Warning Flammable liquids]
• H302 (10%): Harmful if swallowed [Warning Acute toxicity, oral]
• H315 (21.7%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (21.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (20%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (88.3%)
• Acute Tox. 4 (10%)
• Skin Irrit. 2 (21.7%)
• Eye Irrit. 2A (21.7%)
• STOT SE 3 (20%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.