o-Krezolftaleina, wskaźnik – Scharlau
Available on backorder
Additional information
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PRODUCENT: SCHARLAB
o-Cresolphthalein, indicator
– Synonyms: 3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone
– C22H18O4
– M = 346,38 g/mol
– CAS [596-27-0]
– EINECS-No.: 209-881-8
– Solub. in water: (20 ºC): slightly soluble
– Melting point: 223 – 225 ºC
– Tariff number: 2932 20 90 90
– Applications: laboratory reagent, indicator.
SPECIFICATIONS
pH range (colourless to red) : 8,2 – 9,8
insoluble in C2H5OH : passes test
Absorption maximum l (pH =11,3): 565 – 569 nm
Absorptivity (A1%/1 cm; l max.): >1500
related substances (TLC): passes test
