Coomassie brilliant blue G-250, pure

Supplier: Thermo Scientific

Synonyms: Brilliant blue G-250, Serva Blue G, Coomassie Blue G 250, Xylene Brilliant Cyanine G, Brillant blue G, Hydrogen [4-[4-(p-ethoxyanilino)-4'-[ethyl(m-sulphonatobenzyl)amino]-2'-methylbenzhydrylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(m-sulphonatobenzyl)ammonium monosodium salt, C.I. 42655, Acid Blue 90, Sodium 3-(((4-((4-((4-ethoxyphenyl)amino)phenyl)(4-(ethyl(3-sulphonatobenzyl)iminio)-2-methylcyclohexa-2,5-dien-1-ylidene)methyl)-3-methylphenyl)(ethyl)amino)methyl)benzenesulphonate, Brilliant indocyanine G, Brilliant Blue G

191480050 191480250 191481000 191485000
ACRO191480050EA 43.1 GBP
ACRO191480050 ACRO191480250 ACRO191481000 ACRO191485000
Coomassie brilliant blue G-250, pure
Coomassie brilliant blue G-250
Formula: C₄₇H₄₈N₃NaO₇S₂
MW: 854,04 g/mol
Melting Pt: >100 °C
Density: Min, 1 g/cm³ (20 °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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