Chemical Intermediates

(CAS: 110-52-1 | EINECS: 203-775-5)

1. Chemical Identity

Property	Specification
IUPAC Name	1,4-Dibromobutane
Synonyms	Tetramethylene dibromide; Butylene dibromide
Molecular Formula	C₄H₈Br₂
Molecular Weight	215.91 g/mol
CAS No.	110-52-1
EINECS No.	203-775-5

2. Physical Characteristics

Parameter	Value
Appearance	Colorless transparent liquid
Assay (Purity)	≥99% (GC)
Melting Point	-20°C
Boiling Point	197°C
Refractive Index	1.5176-1.5196 (20°C)
Density	1.789-1.791 g/cm³ (25°C)
Flash Point	74°C (closed cup)

3. Production & Supply

Parameter	Detail
Annual Capacity	1,000 metric tons
Package	250kg/plastic drum (UN-approved)
Storage	Keep tightly closed in cool, ventilated area

4. Quality Standards

• Moisture Content: ≤0.1% (KF)
• Color (APHA): ≤20
• Impurities (GC):
  • 1-Bromobutane: ≤0.5%
  • Other organics: ≤0.5% total

5. Applications

• Pharmaceutical Intermediate:
  • Synthesis of quaternary ammonium compounds
  • Building block for antitumor agents
• Agrochemicals:
  • Key intermediate for nematicides and fungicides
• Chemical Synthesis:
  • Precursor for polymers and specialty chemicals

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