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Technical Data Sheet
4538_SF

4-(Phenylazo) diphenylamine, 5 g
≥97 %, p.a.
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
Warning
H315-H319-H335
i causes skin irritation, causes serious eye irritation, may cause respiratory irritation
P302+P352 P305+P351+P338
i IF ON SKIN: Wash with plenty of water, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
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4-Anilinoazobenzene
Empirical formula C18H15N3
Molar mass (M) 273,34 g/mol
Melting point (mp) 91 °C
WGK 1
CAS No. 101-75-7
EG-Nr. 202-972-3

Indicator pH 1.2-2.5; for microscopy
Insoluble in water, soluble in methanol

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4-(Phenylazo) diphenylamine ≥97 %, p.a.

Technical Information
Colour conversion red - yellow 
Transition range pH 1,2 - 2,5 
4-(Phenylazo) diphenylamine
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4538.1 5 g glass

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4538.2 25 g glass

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Certificates of Analysis

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Guarantee analysis

Appearanceorange to orange-brown powder
Assay≥97,0 %
Absorption max. (in EtOH)~411 nm
pH-transition range1,2 (red)-2,5 (yellow)