Phenolphthalein bisphosphate tetrasodium salt ~95%, Sigma-Aldrich®
Fornitore: SIGMA-ALDRICH MICROSCOPY
Synonyms:
Phenolphthalein diphosphate tetrasodium salt
M-Clarity™ quality level = MQ200
Phenolphthalein bisphosphate tetrasodium salt has been used as a component of modified Baird Parker (BP) agar to determine the expression of phosphatases of Staphylococcus aureus ATCC12600. It also been used as a component of modified Tryptose phosphate/phenolphthalein/methyl green (M-TPMG) agar to detect enteroinvasive Escherichia coli (EIEC) apyrase activity.
Formula:
C₂H₁₂Na₄OP₂ Peso molecolare: 566,21 g/mol Temperatura di stoccaggio: Congelamento |
MDL Number:
MFCD00005907 CAS Number: 68807-90-9 |
Risultati del test di specificazione
Appearance (Colour) | White to Light Yellow to Light Brown |
Appearance (Form) | Powder |
Solubility (Colour) | Colorless to Faint Yellow |
Solubility (Turbidity) 50 mg/mL, H2O |
Clear to Slightly Hazy |
Water (by Karl Fischer) | ≤16 % |
Phosphorus (Dry Basis) | 10.4 - 11.5 % |
Sodium (dry basis) | 14.6 - 18.0 % |
Free Phenolphthalein | ≤0.02 % |
Solvent Content (by GC) | ≤10 % |
Purity (TLC) (approx 95%) |
≥92.5% |
Recommended Retest Period | 5 years |
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