4,4′-Diamino-2,2′-stilbenedisulfonic acid CAS 81-11-8

CAS:81-11-8

Molecular Formula:C14H14N2O6S2

Molecular Weight:370.4

EINECS:201-325-2

Mashoko anoreva zvakafanana:diaminostilbenedisulfonicacid; 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid'; 4',4" Diamino stillbene 2'2" disulphonic acid; 1,2-bis(4-amino-2-sulfophenyl)ethene; 4,4'-Diamino-2,2'-stibenedisulfonic acid; 4,4'-DIAMINO-2,2'-STILBENEDISULFONIC 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]

Siya Mharidzo Yako

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Chii chinonzi 4,4'-Diamino-2,2'-stilbenedisulfonic acid CAS 81-11-8?

4,4 '- diaminodiphenyl-2,2' - disulfonic acid ndeyekirasi ye stilbene compounds uye inogona kugadzirwa nehydrogenation ye nitro yayo inotsiva precursor compounds. 4,4 '- Diamino-2,2' - stilbenedisilfonic acid is a yellow tsono yakaita hygroscopic crystal. Yakanyanya kunyungudika zvishoma mumvura, inonyungudika mu ethanol uye ether, inonyungudika zviri nyore mumhinduro dze alkaline.

Tsanangudzo

Item	Tsanangudzo
pKa	-1.58±0.50(Zvakafanotaurwa)
Melting point	300 °C
Density	1.4732 (yakaomarara fungidziro)
Mhepo pressure	1.3hPa pa25 ℃
SOLUBLE	<0.1 g/100 mL pa23 ºC
Refractivity	1.6510 (kufungidzira)

Application

4,4 '- Diamino-2,2' - stilbenedisilfonic acid dhayi uye yepakati senge fluorescent whitening agent. 4,4 '- Diamino-2,2' - stilbenedisilfonic acid inoshandiswa kugadzira fluorescent whitening agent, yakananga nechando yero G uye yakananga yero R, uye semushonga wezvipembenene.