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8.20451 Sigma-Aldrich

2,4-Dichlorophenoxyacetic acid

for synthesis

Synonym: 2,4 D-acid, 2,4-Dichlorophenoxyacetic acid

  • CAS Number 94-75-7

  • Linear Formula 2,4-(Cl)2C6H3OCH2COOH

  • Molecular Weight 221.04

  •  MDL number MFCD00004300

  •  EC Index Number 202-361-1

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Properties

Quality Level   200
vapor pressure   <0.01 hPa
potency   375 mg/kg LD50, oral (Rat)
  >2000 mg/kg LD50, skin (Rabbit)
bp   160 °C/0.53 hPa
mp   134-137 °C
solubility   0.3 g/L
density   1.42 g/cm3 at 25 °C
bulk density   720 kg/m3
InChI   1S/C8H6Cl2O3/c9-5-1-2-7(6(10)3-5)13-4-8(11)12/h1-3H,4H2,(H,11,12)
InChI key   OVSKIKFHRZPJSS-UHFFFAOYSA-N
storage conditions   Store below +30°C.

Description

Analysis Note

Assay (acidimetric): ≥ 98.0 %
Melting range (lower value): ≥ 134 °C
Melting range (upper value): ≤ 140 °C
Identity (IR): passes test

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