Coomassie brilliant blue G-250, pure

Supplier: Thermo Scientific Chemicals

Synonyms: C.I. 42655

19148-0050 19148-0250 19148-1000 19148-5000
TS19148-0050EA 28 USD
TS19148-0050 TS19148-0250 TS19148-1000 TS19148-5000
Coomassie brilliant blue G-250, pure
Coomassie brilliant blue G-250
Formula: C₄₇H₄₈N₃NaO₇S₂
MW: 854.04 g/mol
Melting Pt: >100 °C
Storage Temperature: Ambient
MDL Number: MFCD00078482
CAS Number: 6104-58-1
EINECS: 228-058-4

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Specification Test Results

Appearance Dark blue to dark purple Powder
Infrared spectrum Conforms
Loss on drying ≤10 % (1 g, 105°C, 3 h)
HPLC ≥80 %
UV Lambda max 608 to 618 nm (in 50:50 IMS:H2O)
Absorption Ratio P-15/P+15 0.95 to 1.15
Specific absorbance A (1%/1cm) ≥350 (at lambda max.)


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