Variation ID | Product Code | Pack Size | List Price | Qty | |
---|---|---|---|---|---|
RRBD25680-U | 10g | £26.41 | |||
RRBD25680-W | 25g | £52.82 |
Phenol red (also known as phenolsulfonphthalein or PSP) is a pH indicator frequently used in cell biology laboratories.
Minimum Assay: 90%
Molecular Formula: C19H13NaO5S
Molecular Weight: 376.35 g/mol
Melting Point: 285 °C
Transition Range:
pH1.2 (Brownish Orange) - pH 3.0 (Yellow)
pH6.5 (Brownish/Yellow) -pH8.0 (Red/Violet)
Maximum Absorption (pH6.5): 430-435nm
Absorptivity (E1%1cmCell pH6.5): 560-620
Maximum Absorption (pH68.2): 557-560nm
Absorptivity (E1%1cmCell pH8.2): 970-1100
Loss on Drying: <5%
Cas Number: 34487-61-1
Einecs Number: 252-057-8
HS Code / Commodity Code: 32041900
Hazard Phrases: H315,H319,H335
Prec Phrases: P261,P280,P305+P351+P338,P304+P340,P405,P501A