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Product Name

 3-NITROPHENOL (pH-INDICATOR) (M-NITROPHENOL)

Article No

 N0148000025

CAS No

 554-84-7

Molecular Formula

 C6H5NO3

Molecular Weight

 139.11

Specifications

Appearance:

 Brownish yellow coloured powder

Assay (acidimetric):

 Min 99%

Absorption maxima (buffer pH 11.0):

 389 - 393 nm

Absorption maxima (buffer pH 6.6):

 329 - 333 nm

pH 6.6 - 8.6:

 Colourless to yellow-orange

Specific absorptivity A1%/1cm (lmax; 0.05 g/L; buffer pH 11.0):

 100 - 120

Specific absorptivity A1%/1cm (lmax; 0.05 g/L; buffer pH 6.6):

 130 - 150

Melting point:

 95 - 99 deg C