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Product Name

 α-NAPHTHOL PHTHALEIN (pH INDICATOR) (1-NAPHTHOL PHTHALEIN)

Article No

 N0140700005

CAS No

 596-01-0

Molecular Formula

 C28H18O4

Molecular Weight

 418.45

Specifications

Appearance:

 Light Pink to Beige to Red-Brown Powder

Loss on drying (at 105°C) :

 Max 5%

Absorption maxima (Buffer pH 7.1):

 471 - 485 nm

Absorption maxima (buffer pH 8.3):

 649 - 654 nm