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Basic information about this product

Article No. 005376
Grade Indicator grade
Purity
CAS No. 1945-77-3
Molecular Formula C37H40N2Na4O13S
Molecular Weight 844.76
H.S. Code 3204.9000
Shelf Life 60 Months

Product Description

Detailed information about the product

Physical Properties

Physical state at 20 °C Solid Colour Black powder
Odour Odorless

Specifications

Appearance Dark green to brown to black powder Solubility (0.1% in water) Clear solution
Absorption maxima in water 435 - 443 nm Absorptivity (A 1%/1cm; at λmax; in water) Min 120
Loss on drying (at 110°C) Max 10% Suitability (as metal indicator) Passes test