ChemicalBook > CAS DataBase List > 4,4'-Diamino-2,2'-stilbenedisulfonic acid

4,4'-Diamino-2,2'-stilbenedisulfonic acid

Product Name
4,4'-Diamino-2,2'-stilbenedisulfonic acid
CAS No.
81-11-8
Chemical Name
4,4'-Diamino-2,2'-stilbenedisulfonic acid
Synonyms
DSD ACID;DAS;DASDA;AMSONIC ACID;DASD;benedisuL;nci-c60162;tinopalbhs;AMSOMICACID;flavonicacid
CBNumber
CB0496267
Molecular Formula
C14H14N2O6S2
Formula Weight
370.4
MOL File
81-11-8.mol
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4,4'-Diamino-2,2'-stilbenedisulfonic acid Property

Melting point:
300 °C
Density 
1.4732 (rough estimate)
vapor pressure 
1.3hPa at 25℃
refractive index 
1.6510 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
Aqueous Base (Slightly)
pka
-1.58±0.50(Predicted)
form 
Crystalline Powder
color 
Cream to yellow-brown
Water Solubility 
<0.1 g/100 mL at 23 ºC
Merck 
14,595
BRN 
629516
Stability:
Stable. Combustible. Incompatible with iron, strong oxidizing agents.
LogP
-1.7--1.42 at 25℃
CAS DataBase Reference
81-11-8(CAS DataBase Reference)
EPA Substance Registry System
Amsonic acid (81-11-8)
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Safety

Hazard Codes 
C,Xn
Risk Statements 
34-22-36/37/38-20/21/22
Safety Statements 
24/25-45-36/37/39-26-22
RIDADR 
UN 2583
RTECS 
WJ6603000
TSCA 
Yes
HS Code 
29215900
Hazardous Substances Data
81-11-8(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
462268
Product name
4,4′-Diamino-2,2′-stilbenedisulfonic acid
Purity
technical grade, 85%
Packaging
100G
Price
$111
Updated
2024/03/01
TCI Chemical
Product number
D0121
Product name
4,4'-Diaminostilbene-2,2'-disulfonic Acid
Purity
>94.0%(T)
Packaging
25g
Price
$39
Updated
2024/03/01
TCI Chemical
Product number
D0121
Product name
4,4'-Diaminostilbene-2,2'-disulfonic Acid
Purity
>94.0%(T)
Packaging
100g
Price
$78
Updated
2024/03/01
Alfa Aesar
Product number
A16664
Product name
4,4'-Diaminostilbene-2,2'-disulfonic acid, 95%
Packaging
25g
Price
$32.65
Updated
2024/03/01
Alfa Aesar
Product number
A16664
Product name
4,4'-Diaminostilbene-2,2'-disulfonic acid, 95%
Packaging
100g
Price
$109.65
Updated
2024/03/01
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4,4'-Diamino-2,2'-stilbenedisulfonic acid Chemical Properties,Usage,Production

Chemical Properties

Light Yellow Powder

Uses

4,4’-Diaminostilbene-2,2’-disulfonic Acid, 95+% (cas# 81-11-8) is a compound useful in organic synthesis.

Uses

In manufacture of dyes, bleaching agents.

General Description

Odorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension).

Air & Water Reactions

Insoluble in water.

Reactivity Profile

4,4'-Diamino-2,2'-stilbenedisulfonic acid is incompatible with iron. 4,4'-Diamino-2,2'-stilbenedisulfonic acid forms sparingly water-soluble, crystalline salts with many bisquaternary ammonium bases.

Fire Hazard

Flash point data for 4,4'-Diamino-2,2'-stilbenedisulfonic acid are not available; however, 4,4'-Diamino-2,2'-stilbenedisulfonic acid is probably combustible.

Synthesis

A typical procedure for preparation of 4,4'-Diamino-2,2'-stilbenedisulfonic acid: A solution of potassium hydroxide (3 g, 52 mmol) in a low amount of water was slowly added with stirring to a mixture of p-nitrotoluene ortho sulfonic acid (2.2 g, 10 mmol), diethylene glycol (20 mL) and 2.5 mL of hydrazine hydrate 85%. The resulting mixture was refluxed for 30 minutes, then the condenser was removed, the aqueous liquor evaporated, and refluxing continued for 2.5 hours. The reaction mixture was cooled and diluted with water when the reaction was completed. Then, the cooled and diluted reaction mixture was acidified with warm, concentrated hydrochloric acid, and the pure product was filtered.

Environmental Fate

For the environment, various NOEC and LC50 values were gained from test results; LC50 = > 1000 mg/l (acute fish); EC50 = 210 mg/l (acute daphnia); EC50 = 76 mg/l (acute algae); NOEC = 32 mg/l (algae); NOEC = 37 mg/l (longterm daphnia reproduction). The lowest toxicity result (72h-NOEC, biomass, for Selenastrum capricornutum, 32 mg/l) was used to derive a PNEC. An assessment factor of 100 was used according to the OECD Provisional Guidance for Initial Assessment of Aquatic Effects. Thus, PNEC of 4,4'-Diamino-2,2'-stilbenedisulfonic acid is 0.32 mg/l in the present report. The PEC is lower than the PNEC. The environmental risk is presumed to be low.

4,4'-Diamino-2,2'-stilbenedisulfonic acid Preparation Products And Raw materials

Raw materials

4-Nitrotoluene

Preparation Products

fluorescent whitening agent PRS fluorescent whitening agent JD-3 Fluorescent Brightener BC Direct Red Brown RN fluorescent whitening agent SBA Direct Red 227 Fluorescent Brightener VBU Reactive Yellow KE-4RN Fluorescent brightener No.31 fluorescent bleaches R fluorescent whitening agent RA Direct Blending Brilliant Red D-5BL Direct Yellow 12 Reactive Yellow 179 fluorescent whitening agent DMS Reactive Red KD-8B Reactive Orange KE-2G Fluorescent brightener 85 fluorescent bleaches BR Direct Blending Yellow D-3RNL FLUORESCENT BRIGHTENER 28 Reactive Yellow 84 Reactive Yellow KE-RN PROCION YELLOW H-E3G
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4,4'-Diamino-2,2'-stilbenedisulfonic acid Suppliers

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View Lastest Price from 4,4'-Diamino-2,2'-stilbenedisulfonic acid manufacturers

Shanghai Xin Cheng Yue Chemical Co.,Ltd
Product
4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price
US $0.00-0.00/kg
Min. Order
1000kg
Purity
78
Supply Ability
1000ton
Release date
2024-01-25
Anhui Royal Chemical Co., Ltd.
Product
DSD Acid 81-11-8
Price
US $100.00-1900.00/kg
Min. Order
1000kg
Purity
95%
Supply Ability
20 tons
Release date
2024-04-23
Hebei Yanxi Chemical Co., Ltd.
Product
4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price
US $0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-11-17

81-11-8, 4,4'-Diamino-2,2'-stilbenedisulfonic acidRelated Search:

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  • 2,2’-disulfo-4,4’-stilbenediamine
  • 4,4’-diamino-2’-stilbenedisulfonicacid
  • 4,4’-Diaminostibene-2,2’-disulfonicacid
  • Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-aMino-
  • flavonicacid
  • nci-c60162
  • p,p’-diaminodiphenylethylene-o,o’-disulfonicacid
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  • 4,4'-Diaminostilbene-2,2'-disulphonicacid(Amsonicacid)
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  • 44DIAMINO22STILBENEDISULPHONICACID
  • 22DIAMINO44STILBENEDISULFONICACID
  • AMSOMICACID
  • 4,4'-Diaminostilben-2,2'-disulfonsure
  • Diaminostilbene-2,2'-disulfonic acid
  • AKOS BBS-00004717
  • AMSONIC ACID
  • 4,4 DIAMINO STILBENE 2:2 DISULFONIC ACID
  • 4,4'-DIAMINOSTILBENE-2,2'-DISULFONIC ACID
  • 4,4'-DIAMINO STIBEN-2,2'-DISULFONIC ACID
  • 4,4'-DIAMINOSTILBENE-2,2'-DISULPHONIC ACID
  • 4,4'-DIAMINOSTILBENE-2,2-DISULPHONIC ACID
  • 4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID
  • 2,2'-(1,2-ethylenediyl)bis(5-aminobenzenesulfonic acid)
  • DSD ACID
  • DAS
  • DASD
  • DASDA
  • 2,2’-(1,2-ethenediyl)bis(5-amino-benzenesulfonicaci
  • 4,4'-Diaminostilbene-2,2'-disulfonic Acid &gt
  • 4,4'-Diamino-2,2'-stilbenedisulfonicaci
  • 4,4'-Diamino-2,2'-stilbenedisulfonic acid ISO 9001：2015 REACH
  • 4,4'-Diaminostilbene-2,2'-disulfonic Acid
  • 81-11-8
  • 93981-21-2
  • 1981-11-08
  • 1981-11-8
  • C14H14N2O8S2
  • C15H14N2O6S2
  • C14H14S2N2O6
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  • C14H14N2O6S2
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