4,4′-Diamino-2,2′-stilbenedisulfonicum acidum CAS 81-11-8

CAS;81-11-8

Formulae hypotheticae:C14H14N2O6S2

Pondus hypotheticum:370.4

EINECS:201-325-2

Synonyma:diaminostilbenedisulfonicacid; 4,4'-Diaminodiphenylethylene-2,2'-acidum disulfonicum'; Acidum disulphonicum 4',4" Diamino stillbene 2'2". 1,2-bis(4-amino-2-sulfophenyl)ethene; Acidum stibenedisulfonicum 4,4'-Diamino-2,2'- ACI D, TECH, 85%; 2,2'-(1,2-ethenediyl)bis[5-amino-benzenesulfonicaci; 2,2'-(1,2-ethenediyl)bis[5-amino-Benzenesulfonicacid; 2,2'-(1,2-ethenediyl)bis[5-amino-benzenesulfonicacid]

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Quid est 4,4'-Diamino-2,2'- acidum stilbenedisulfonicum CAS 81-11-8?

4,4' - diaminodiphenyl-2,2' - Acidum disulfonicum ad classem compositorum stilbene componendam pertinet, et praeparari potest per hydrogenationem sui nitro, qui praecursoris mixtorum substituitur. 4,4 - Acidum diamino-2,2' - stilbenedisilfonic acidum est acum luteum crystallum hygroscopicum conformatum. Levissime solutum in aqua, in ethanolo et aethere solutum, in solutionibus alcalini facile solutum.

Specification

Item	Specification
pKa	-1.58±0.50 (Praedicta)
punctum liquescens	CCC °C
Densitas	1.4732 (aestimatio aspera)
Vapor pressura	1.3hPa at 25℃
SOLUBILIS	<0.1 g/100 mL ad 23 ºC
Refractivitas	1.6510 (aestima)

Applicationem

4,4' - Diamino-2,2' - Stilbenedisilfonic tingunt acidum intermedium ut albescentes fluorescentium agentis. 4,4 ' - Acidum diamino-2,2' - stilbenedisilfonic adhibetur ad producendum albumen fluorescentium agentis, glacialem flavum G directum et flavum R directum, et insecticidium.