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2,4-Dihydroxybenzoic acid CAS 89-86-1

White needle shaped crystals. When crystallized from water, it contains crystalline water and becomes anhydrous at 100 ℃. Melting point 218-219 ℃ (rapid heating melting point 213 ℃). Dissolve in hot water, ethanol, and ether. Boiling in water, acid, or salt solution will remove carbon dioxide. Red color when interacting with ferric chloride.
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  • 89-86-1

  • bosschemical

  • 89-86-1

2,4-Dihydroxybenzoic acid Basic information
Uses Toxicity Usage limits Chemical properties Application Preparation
Product Name: 2,4-Dihydroxybenzoic acid
CAS: 89-86-1
MF: C7H6O4
MW: 154.12
EINECS: 201-946-9
Mol File: 89-86-1.mol
2,4-Dihydroxybenzoic acid Chemical Properties
Melting point  208-211 °C (dec.) (lit.)
Boiling point  237.46°C (rough estimate)
density  1.3725 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.6710 (estimate)
FEMA  3798 | 2,4-DIHYDROXYBENZOIC ACID
Fp  200 °C
storage temp.  Inert atmosphere,Room Temperature
solubility  8g/l
pka 3.11, 8.55, 14.0(at 25℃)
form  Crystalline Powder
color  Cream to slightly beige or pink
Odor at 100.00?%. mild phenolic
biological source synthetic
Water Solubility  8 g/L (20 ºC)
Merck  148,157
JECFA Number 908
BRN  1946213
InChIKey UIAFKZKHHVMJGS-UHFFFAOYSA-N
LogP 0.98 at 23℃ and pH3.5
CAS DataBase Reference 89-86-1(CAS DataBase Reference)
NIST Chemistry Reference 2,4-Dihydroxybenzoic acid(89-86-1)
EPA Substance Registry System 2,4-Resorcylic acid (89-86-1)

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