O-Acetylsalicylic acid 99%

Supplier: Thermo Scientific
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Synonyms: 2-Acetoxybenzoic acid, Acetylsalicylic acid, Aspirin, Aspirin®

158185000 158180500 158180025
ACRO158185000EA 88.6 GBP
ACRO158185000 ACRO158180500 ACRO158180025
O-Acetylsalicylic acid 99%
o-Acetylsalicylic acid
Formula: 2-(CH₃CO₂)C₆H₄CO₂H
MW: 180,16 g/mol
Boiling Pt: 140 °C (1013 hPa)
Melting Pt: 136…140 °C
Density: 1,35 g/cm³
Flash Pt: 250 °C
Storage Temperature: Ambient
MDL Number: MFCD00002430
CAS Number: 50-78-2
EINECS: 200-064-1
Merck Index: 13,00856
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Specification Test Results

Appearance White Granular powder
Infrared spectrum Conforms
Melting point 133 to 139 °C
Loss on drying ≤0.5 % (1 g) (vacuum, over P2O5, room temp)
Heavy metals ≤10 ppm
Sulfated ash ≤0.1 %
Appearance of solution (1 g in 9 ml ethanol 96%) clear, colorless
Particle size ≤5 % (retained on 1000 µm sieve)
Titration with NaOH 98.5 to 101.5 % (On dried substance)

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