| Identification | More | [Name]
4,4'-Diamino-2,2'-stilbenedisulfonic acid | [CAS]
81-11-8 | [Synonyms]
2,2'-(1,2-ethylenediyl)bis(5-aminobenzenesulfonic acid)
4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID
4,4'-DIAMINO STIBEN-2,2'-DISULFONIC ACID
4,4 DIAMINO STILBENE 2:2 DISULFONIC ACID
4,4'-DIAMINOSTILBENE-2,2'-DISULFONIC ACID
4,4'-DIAMINOSTILBENE-2,2'-DISULPHONIC ACID
4,4'-DIAMINOSTILBENE-2,2-DISULPHONIC ACID
AKOS BBS-00004717
AMSONIC ACID
DAS
DASD
DASDA
DSD ACID
2,2’-(1,2-ethenediyl)bis(5-amino-benzenesulfonicaci
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]
2,2’-(1,2-ethylenediyl)bis(5-amino-benzenesulfonicaci
2,2’-disulfo-4,4’-stilbenediamine
4,4’-diamino-2’-stilbenedisulfonicacid | [EINECS(EC#)]
201-325-2 | [Molecular Formula]
C14H14N2O6S2 | [MDL Number]
MFCD00024946 | [Molecular Weight]
370.4 | [MOL File]
81-11-8.mol |
| Chemical Properties | Back Directory | [Appearance]
Light Yellow Powder | [Melting point ]
300 °C
| [density ]
1.4732 (rough estimate) | [refractive index ]
1.6510 (estimate) | [storage temp. ]
Keep in dark place,Inert atmosphere,Room temperature | [form ]
Crystalline Powder | [pka]
-1.58±0.50(Predicted) | [color ]
Cream to yellow-brown | [Stability:]
Stable. Combustible. Incompatible with iron, strong oxidizing agents. | [Water Solubility ]
<0.1 g/100 mL at 23 ºC | [Merck ]
14,595 | [BRN ]
629516 | [CAS DataBase Reference]
81-11-8(CAS DataBase Reference) | [EPA Substance Registry System]
81-11-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xn | [Risk Statements ]
R34:Causes burns.
R22:Harmful if swallowed. | [Safety Statements ]
S24/25:Avoid contact with skin and eyes .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S22:Do not breathe dust . | [RIDADR ]
UN 2583 | [RTECS ]
WJ6603000 | [TSCA ]
Yes | [HS Code ]
29215900 | [Hazardous Substances Data]
81-11-8(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Odorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension). | [Reactivity Profile]
4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID(81-11-8) is incompatible with iron. 4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID(81-11-8) forms sparingly water-soluble, crystalline salts with many bisquaternary ammonium bases. | [Air & Water Reactions]
Insoluble in water. | [Fire Hazard]
Flash point data for this chemical are not available; however, 4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID is probably combustible. | [Chemical Properties]
Light Yellow Powder | [Uses]
In manufacture of dyes, bleaching agents. |
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