Hóa chất Alkali blue (C.I. 42765) indicator Merck 1091960025 (C₃₇H₂₉N₃O₃S; Chai thủy tinh 25 g) DEEP52 https://yeuhangduc.vn/
3,455,348₫
Mô tả
CAS number: 1324-76-1
EC number: 215-385-2
Hill Formula: C₃₇H₂₉N₃O₃S
Molar Mass: 595.7 g/mol
Identity (UV/VIS-Spectrum): passes test
Transition range: pH 11.5 - pH 13.0 blue-violet - dark-pink
Absorption maximum λmax. (Ethanol): 597 - 602 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; ethanol abs.; calculated on dried substance): ≥ 1000
TLC-Test: passes test
Loss on drying (110 °C): ≤ 5 %
Suitability as indicator (according to DIN 51558): passes test
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