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HomeProduct name listO-ACETYLSALICYLOYL CHLORIDE

O-ACETYLSALICYLOYL CHLORIDE

  • CAS NO.:5538-51-2
  • Empirical Formula: C9H7ClO3
  • Molecular Weight: 198.6
  • MDL number: MFCD00000663
  • EINECS: 226-899-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-19 17:35:41
O-ACETYLSALICYLOYL CHLORIDE Structural

What is O-ACETYLSALICYLOYL CHLORIDE?

Chemical properties

yellow to light orange chunks

The Uses of O-ACETYLSALICYLOYL CHLORIDE

O-Acetylsalicyloyl chloride was used in the synthesis of enantiomerically pure bidentate heteroorganic ligands built on simple achiral skeletons and containing an aziridine moiety. It was used in the general synthesis of acetoxybenzamides. It was used in the chemical synthesis of 2,2,6,6-tetramethyl-1-piperidinyloxy(TEMPO)-aspirin conjugate via condensation reaction with 4-hydroxy-TEMPO. It was used as reagent in acylation of cyclobutenediones.

Purification Methods

Check first the IR to see if an OH frequency is present. If so, some free acid is present. Then reflux with acetyl chloride for 2-3hours and fractionate at high vacuum. The distillate should crystallise. It can be recrystallised from hexane or *C6H6 (m 60o, sintering at 52o). [Riegel & Wittcoff J Am Chem Soc 64 486 1942, Beilstein 10 H 86, 10 I 43, 10 II 55, 10 III 151, 10 IV 169.]

Properties of O-ACETYLSALICYLOYL CHLORIDE

Melting point: 45-49 °C (lit.)
Boiling point: 107-110 °C/0.1 mmHg (lit.)
Density  1.3219 (rough estimate)
refractive index  n20/D 1.536(lit.)
Flash point: >230 °F
storage temp.  Refrigerator
solubility  Chloroform (Slightly), Ethyl Acetate (Slightly)
form  powder to lump
color  White to Orange to Green
Water Solubility  Soluble in toluene. Reacts with water.
Sensitive  Moisture Sensitive
BRN  880372
Stability: Moisture Sensitive
CAS DataBase Reference 5538-51-2(CAS DataBase Reference)
NIST Chemistry Reference Acetylsalicyloyl chloride(5538-51-2)

Safety information for O-ACETYLSALICYLOYL CHLORIDE

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for O-ACETYLSALICYLOYL CHLORIDE

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