Merck 107531 0005 Pan (Metal) Indicator 5 GR.

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Description
Catalogue Number	107531
Synonyms	PAN

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Product Information
CAS number	85-85-8
EC number	201-637-9
Grade	Reag. Ph Eur
Hill Formula	C₁₅H₁₁N₃O
Molar Mass	249.27 g/mol
HS Code	2933 39 39
Structure formula Image
Quality Level	MQ200

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Physicochemical Information
Melting Point	138 - 141 °C
Bulk density	190 kg/m3

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	3\nRelatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Specifications
Identity (UV/VIS-Spectrum)	passes test
Appearance	brick-red to orange-brown fine powder,eventually cohesive
Appearance of solution (1.0 g/l; ethanol)	Clear to almost clear, red-orange to brown-orange
Melting point	136 - 141 °C
Absorption maximum λmax. (Ethanol)	461 - 465 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; Ethanol)	670 - 720
Suitability as indicator (for metal titration)	passes test
Sensitivity test (Reag. Ph Eur)	passes test