N-Ethylmaleimide (NEM) 99+%

Supplier: Thermo Scientific
Danger

Synonyms: 1-Ethyl-1H-pyrrole-2,5-dione

ACRO156100050EA 103 EUR
ACRO156100050 ACRO156100500 ACRO156102500 ACRO156100100
N-Ethylmaleimide (NEM) 99+%
N-Ethylmaleimide
Formula: C₆H₇NO₂
MW: 125,13 g/mol
Boiling Pt: 210 °C (760 mmHg)
Melting Pt: 41…45 °C
Flash Pt: 73 °C
Storage Temperature: Refrigerator
MDL Number: MFCD00005509
CAS Number: 128-53-0
EINECS: 204-892-4
UN: 2928
ADR: 6.1,II
Merck Index: 13,03855

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Specification Test Results

Appearance White to light yellow Crystalline powder or crystals
Infrared spectrum Conforms
Melting point 41 to 45 °C
Solubility (5% in 100% EtOH) Clear colorless to almost colorless solution
HPLC ≥99.0 %
Residue after ignition ≤0.01 %
Aluminium (Al) ≤1 ppm
Antimony (Sb) ≤1 ppm
Arsenic (As) ≤1 ppm
Boron (B) ≤1 ppm
Calcium (Ca) ≤5 ppm
Chromium (Cr) ≤1 ppm
Copper (Cu) ≤1 ppm
Iron (Fe) ≤1 ppm
Lead (Pb) ≤1 ppm
Magnesium (Mg) ≤1 ppm
Manganese (Mn) ≤1 ppm
Nickel (Ni) ≤1 ppm
Potassium (K) ≤20 ppm
Sodium (Na) ≤20 ppm
Zinc (Zn) ≤1 ppm

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