a-NAPHTHOLPHTHALEIN

(pH Indicator) (1-Naphthol Phthalein)

Article No N-06102
CAS No 596-01-0
HSN Code 32049000
Purity -
Grade Indicator Grade
Molecular Formula C28H18O4
Molecular Weight 418.45
Shelf Life 5 years


MSDS

COA

Packagings

a-NAPHTHOLPHTHALEIN

1 gm

a-NAPHTHOLPHTHALEIN

5 gm

Specifications

Appearance Light pink beige to red – brown powder
Loss on drying at 105°C Max. 5.0%
Melting Point 238 - 240 ºC
Solubility In Water (% weight) Insoluble In Water
pH trasition range (7.1 - 8.3) Brownish pink to Blue
Absorption maxima (Buffer pH 7.1) 471 - 485 nm
Absorption maxima (Buffer pH 8.3) 649 - 654 nm