Rhodamine B, pure

Supplier: Thermo Scientific Chemicals
Danger

Synonyms: 9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium chloride, [9-(2-Carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium chloride

13231-0025 13231-1000 13231-5000
TS13231-0025EA 671 USD
TS13231-0025 TS13231-1000 TS13231-5000
Rhodamine B, pure
Rhodamine B
Formula: C₂₈H₃₁ClN₂O₃
MW: 479.02 g/mol
Melting Pt: 210…211 °C (dec.)
Storage Temperature: Ambient
MDL Number: MFCD00011931
CAS Number: 81-88-9
EINECS: 201-383-9
Merck Index: 1308266

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Specification Test Results

Appearance Dark green Powder or crystals
Infrared spectrum Conforms
Loss on drying ≤10 % (105°C)
UV Lambda max 549 to 558 nm (in 50:50 IMS:water)
Absorption Ratio P-15/P+15 1.1 to 1.6
Specific absorbance A (1%/1cm) ≥1700 (at lambda max.)

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